JP6221977B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat including a seat frame, a seat pad, and a support member (a member that is assembled to the seat frame and supports the seat pad).

  As this type of vehicle seat, a vehicle seat including a seat cushion and a seat back is known (see Patent Document 1). In this vehicle seat, a seat cushion supports a seat frame (typically made of metal) that forms a seat skeleton, a seat pad (made of foamed resin) that elastically supports an occupant by forming a seat outer shape, and a seat pad. Having a supporting member. The seat frame is a substantially rectangular (upward view) frame, and includes a front frame (flat plate shape) that forms a front skeleton, a rear frame (pipe shape) that forms a rear skeleton, and a pair of side frames that connect them. It has a side frame (flat plate shape). The support member has a frame-like body that can be assembled to the seat frame and a planar body that is stretched (disposed in a tensioned state) in the frame-like body. The frame-like body is a substantially rectangular frame (typically made of metal) that follows the shape of the seat frame, and a resin-made covering portion is formed around the frame. The planar body is a surface material formed by weaving and knitting natural fiber or synthetic fiber thread material, and its end (the end in the sheet width direction) is integrated and held in the cover of the frame-shaped body. Is done.

  In the known technology, the seat pad is covered with the seat cover while being disposed on the seat frame via the support member. At this time, the rear side of the frame-shaped body is assembled to the rear frame while the front side of the frame-shaped body is assembled to the front frame. In this way, the frame body is assembled to the front frame and the rear frame and disposed in the seat frame, and the seat pad (back surface side) is supported by the planar body held by the frame body.

  By the way, in the above-mentioned vehicle seat, other members such as a motor may be disposed on the front portion (inner surface side) of the side frame, for example. In this case, in order to avoid interference between the other members and the frame-like body, for example, the frame-like body scale (dimension in the front-rear direction of the sheet) is shortened and disposed only on the rear side of the sheet (frame-like on the front side of the sheet) The body is left undeployed). Then, the rear side of the frame-shaped body is assembled to the rear frame while the front side of the planar body is assembled to the front frame.

JP2011-254952A

  By the way, in the above-described configuration (configuration in which the frame-shaped body is short), both ends of the sheet-shaped body (both ends in the sheet width direction) are not held by the frame-shaped body and are arranged in an unsupported state in the front portion of the sheet. For this reason, on the front side of the support member, the sheet performance deteriorates due to the non-uniform elongation characteristics of the planar body (tensile at the center viewed in the sheet width direction and small tension at the end). was there. For example, when the occupant is seated (when the occupant's thigh is placed on the front side of the support member), the elongation characteristics of the planar body are non-uniform (the spring force is non-uniform at the center and the end) As a result, the seating property of the seat deteriorates. Further, when the planar body (front part) is assembled, it is difficult to apply a uniform tension in the surface direction of the planar body, and there is a concern that, for example, the end side is partially loosened. The present invention has been devised in view of the above points, and the problem to be solved by the present invention is to stretch a non-holding portion of a planar body with respect to a frame-shaped body with good performance.

  As means for solving the above-mentioned problems, a vehicle seat of the first invention includes a frame-like seat frame forming a seat skeleton, a seat pad that forms a seat outer shape and can elastically support an occupant, and a seat pad. And a supporting member for supporting. The support member includes a planar body that can support the seat pad and a frame body that can hold an end of the planar body in the sheet width direction. In the present invention, a support member is provided in the seat frame, and the seat pad is supported from the back side by a planar body attached to the frame body. At this time, a first part held by the frame-like body and a second part that is not held by the frame-like body are formed at the end of the planar body in the sheet width direction. In this type of configuration, it is desirable that the non-holding portion of the planar body with respect to the frame body can be stretched with good performance (with as uniform tension as possible). Therefore, in the present invention, a reinforcing structure that is less likely to extend than the central portion of the planar body viewed in the sheet width direction is provided at the end of the second portion in the sheet width direction. In the present invention, in the reinforcing structure, the end portion in the sheet width direction of the second part is relatively difficult to extend, so that a uniform tension can be applied to the planar body of the second part as much as possible.

  The vehicle seat of the second invention is the vehicle seat of the first invention, wherein the reinforcing structure is separate from the planar body and the planar or linear reinforcing member is the end of the second portion in the seat width direction. It is attached to the part. In the present invention, the planar member of the second part is formed by a separate reinforcing member (reinforcing reinforcement structure) without changing the configuration of the planar member itself as much as possible (with a relatively simple configuration). Can be stretched with good performance.

  The vehicle seat of the third invention is the vehicle seat of the first invention or the second invention, wherein the seat frame is disposed on one side of the side frame forming the side frame of the seat and the side frame as viewed in the extending direction. It has a 1st assembly part and the 2nd assembly part arrange | positioned in the other side seeing in the extension direction of the side frame different from one side. And in this invention, a supporting member is assembled | attached to a 1st assembly part and a 2nd assembly part, and is arrange | positioned in a seat frame. At this time, it was set as the structure assembled | attached to at least one of a 1st assembly part and a 2nd assembly part via a reinforcement structure, making the 2nd site | part tensioned in the sheet | seat width direction. In the present invention, the planar body can be stably assembled to the seat frame in a state in which an appropriate tension is applied at a reinforcing structure (a portion that is relatively difficult to stretch).

  According to the first aspect of the present invention, the non-holding portion of the planar body relative to the frame body can be stretched with good performance. According to the second invention, the non-holding portion of the planar body relative to the frame body can be stretched with higher performance. And according to 3rd invention, the non-holding location of the planar body with respect to a frame-shaped body can be stretched further with sufficient performance.

It is a perspective view of a vehicle seat. It is a perspective view of a part of vehicle seat which shows an exploded seat cushion. It is a perspective view of a part of seat cushion and a slide rail. It is an expansion perspective view of a part of seat cushion and a slide rail. It is a schematic top view of a planar body. 10 is a perspective view of a part of a support member according to Modification 1. FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. Also, in each figure, a reference symbol F is attached to the front of the vehicle seat, a reference symbol B is attached to the rear of the vehicle seat, a reference symbol UP is provided above the vehicle seat, and a reference symbol DW is provided below the vehicle seat. The vehicle seat 2 in FIG. 1 includes a seat component (seat cushion 4, seat back 6, headrest 8) and a slide rail 9. Each of the seat constituent members includes a seat frame (4F, 6F, 8F) forming a seat skeleton, a seat pad (4P, 6P, 8P) forming a seat outer shape, and a seat cover (4S, 6S, 8S) covering the seat pad. ). In this embodiment, the seat back 6 is connected to the rear portion of the seat cushion 4 so that the seat back 6 can be raised and lowered, and the headrest 8 is disposed on the upper portion of the seat back 6 (standing state).

  The slide rail 9 is a member that slides the seat constituent member forward and backward, and includes an upper rail 9a and a lower rail 9b (see FIGS. 1 and 2). In this embodiment, the seat frame 4F is attached to the upper portion of the upper rail 9a, and the lower rail 9b is attached to the vehicle floor. And by assembling both rails slidably, the seat component can be slid in the vehicle front-rear direction with respect to the vehicle floor.

[Seat cushion]
In the present embodiment, the seat cushion 4 has a basic configuration (4F, 4P, 4S) and a support member 20 (planar body 22 (reinforcing structure 30), frame-shaped body 24) (see FIG. 2, each member). Details will be described later). The seat pad 4P is disposed on the seat frame 4F via the support member 20, and then covered with the seat cover 4S. At this time, as will be described later, the sheet body 22 is held at the end (part) in the sheet width direction while being moderately tensioned (tensioned). Then, the support member 20 is assembled to the seat frame 4F (first assembly part AM1 and second assembly part AM2 described later), and the seat pad 4P is supported by the planar body 22 held by the frame body 24. .

  In this embodiment, the motor MM (an example of another member) is disposed, for example, at the front portion of the seat frame 4F (the inner surface side of a side frame 4b described later) (see FIG. 3). For this reason, in this embodiment, as described later, the frame-like body 24 is arranged only on the rear side of the seat (not arranged on the front side of the seat) so as not to interfere with the motor MM as much as possible. For this reason, a location (first portion 22 a) held by the frame-like body 24 and a non-holding location (second portion 22 b) are formed at the end of the planar body 22. In this type of configuration, it is preferable that the non-holding portion (second portion 22b) of the planar body 22 with respect to the frame-like body 24 can be stretched with good performance. Therefore, in the present embodiment, the non-holding portion of the planar body 22 with respect to the frame body 24 is stretched with good performance in the configuration (reinforcing structure 30) described later. Hereinafter, each configuration will be described in detail.

[Basic configuration]
Here, the seat cover 4S is a bag-like member capable of covering the seat pad 4P, and can be formed of, for example, fabric (woven fabric, knitted fabric, non-woven fabric) or leather (natural leather, synthetic leather) (see FIG. 2). The seat pad 4P is a member that elastically supports an occupant (substantially rectangular member that can be placed on a seat frame 4F described later), such as polyurethane foam (density: 10 kg / m ^{3 to} 60 kg / m ³ ). It can be formed of a resin member.

  The seat frame 4F is a substantially rectangular (upward view) frame, and includes a front frame 4a (first assembly portion AM1), a pair of side frames 4b, and a rear frame 4c (second assembly portion AM2). (See FIG. 2 and FIG. 3). Here, the pair of side frames 4b are flat members (members extending in the front-rear direction of the seat) that constitute the side skeleton of the seat cushion 4, and are disposed facing each other on the side of the seat. Each side frame 4b of this embodiment is formed with a hole H2 into which a bolt material BM1 can be inserted in the middle of the seat frame in the front-rear direction (front of a rear frame 4c described later). 24 front sides can be attached. A motor MM is attached to the inner surface side of the front part (front side of the second assembly part) of each side frame 4b and is arranged to project inward of the seat.

  Further, the front frame 4a (first assembly portion AM1) is a member constituting the front skeleton of the seat cushion 4, and extends in the seat width direction on the front side (one side) of the side frame 4b. The front frame 4a of the present embodiment is a flat plate member (substantially horizontal L shape in cross-sectional view), and has a plurality of claw portions 4d and a pair of assembly hole portions H1. Each claw portion 4d is a member having a substantially inverted L shape (side view), and can lock a planar body 22 (front portion) described later. In the present embodiment, the plurality of claw portions 4d are formed on the upper surface (inclined surface) of the front frame 4a at appropriate intervals and arranged in parallel in the seat width direction. The pair of assembly holes H1 is a part where a planar body 22 (reinforcing structure 30) described later can be assembled. Each assembly hole portion H1 of the present embodiment can be respectively inserted with a bolt material BM2, and is formed at both ends of the front frame 4a (outward of the claw portion 4d when viewed in the sheet width direction). The rear frame 4c (second assembling portion AM2) is a member constituting the rear portion of the seat frame 4F, and extends in the seat width direction on the rear side (other side) of the side frame 4b. The rear frame 4c of the present embodiment is a cylindrical (pipe-like) bar, and can be assembled by hooking the rear side of the support member 20 (latching portion 28 of the frame-like body 24) described later.

[Support member]
The support member 20 is a member that is assembled to the seat frame 4F and supports the seat pad 4P, and includes a planar body 22 (first portion 22a, second portion 22b, reinforcing structure 30) and a frame-like body 24. (See FIGS. 2-5). Here, the frame-like body 24 is a member (a member that can hold the end of the frame-like body) to which the planar body 22 (described later) can be attached, and can be disposed on the seat frame 4F. Examples of the material of the frame-like body 24 include materials having excellent rigidity capable of holding the planar body 22 (hard resin, metal, etc.). In this embodiment, a metal frame-like body 24 can be used.

  The frame body 24 of the present embodiment is formed of a substantially U-shaped wire material (bar material) as viewed from above, and includes a pair of side frame portions 25a, a rear frame portion 25b, and a configuration described later ( It has a mounting part 26 and a latching part 28) (see FIGS. 2 and 3). The pair of side frame portions 25a are portions that form one side of the side portion of the frame-like body 24, and extend in the seat front-rear direction. Each side frame portion 25a of the present embodiment is bent in a crank shape toward the inner side of the seat on the rear side, and thereafter a latching portion 28 described later is formed on the end side. The rear frame portion 25b is a portion forming one side of the rear portion of the frame-like body 24, and is arranged behind the seat and extends in the seat width direction. In this embodiment, the length of the frame-like body 24 (the dimension in the front-rear direction of the seat) is shorter than that of the seat frame 4F, and the length reaches the middle of the side frame 4b (hole H2) from the rear frame 4c. Is set. Further, the width dimension (dimension in the seat width direction) of the frame-like body 24 is set slightly smaller than the seat frame 4F (can be arranged in the seat frame 4F).

  And the attachment part 26 is a site | part which can be attached in the middle (hole H2) of the side frame 4b, and can be provided in the front part of the frame-shaped body 24 (refer FIG. 3). The attachment portion 26 of the present embodiment is a portion formed by bending the front portion of each side frame portion 25a in a crank shape toward the side frame 4b (outside in the seat width direction) with reference to the assembling time. After bending in the direction, it extends toward the front of the seat. And the hole (code | symbol omission) which can insert volt | bolt material BM1 is formed in the edge part of the attachment part 26, and it arrange | positions so that it can face in the hole H2 of the side frame 4b. The hooking portion 28 is a portion that can be hooked to the rear frame 4c (first mounting portion AM1), and can be provided at the rear portion of the frame-like body 24. The latching part 28 of the present embodiment is a part (hook-like part) formed by bending and deforming the rear part of each side frame part 25a upward in a substantially inverted U shape with reference to the time of assembly.

  Moreover, the planar body 22 is a surface material having elasticity (can be deformed indented) that can support the seat pad 4P (see FIGS. 2 to 5). The material of the planar body 22 is not particularly limited, but is a fabric (woven fabric, knitted fabric, non-woven fabric) made of natural fibers or synthetic fibers, leather (natural leather, synthetic leather), net body (members in which fibers are woven into a mesh shape). Can be illustrated. The planar body 22 of the present embodiment is a substantially rectangular surface material that can be disposed in the seat frame 4F (between the front frame 4a and the rear frame 4c). Mounting hole 23b. The bar 23a is a member that is long in the sheet width direction, and is inserted into the front portion of the planar body 22 (the portion that is rolled up). The plurality of attachment holes 23b are through holes provided at appropriate intervals in the front portion of the planar body 22 (the rear side of the bar 23a), and are formed at positions where the claw portions 4d can be inserted. . In this embodiment, the width dimension of the planar body 22 (the dimension in the sheet width direction) is set slightly longer than the width dimension of the frame-like body 24. In this way, in this embodiment, the sheet width direction end of the rear portion of the planar body 22 (first portion 22a described later) can be held in the frame-shaped body 24 as a winding shape (details will be described later). Further, a reinforcing structure 30 described later is formed at an end portion in the sheet width direction of the front portion of the planar body 22 (second portion 22b described later).

[Formation work of support member (first part and second part)]
In this embodiment, the rear side of the planar body 22 is attached while being stretched (tensioned) in the plane direction while traversing the frame body 24 in the sheet width direction (see FIGS. 2 to 4). At this time, while placing the planar body 22 on the back side of the frame-like body 24, the end (the end in the sheet width direction) side of the rear side of the planar body 22 is wound upward around the side frame 25a. Fold it into a bag. Then, by fixing the end portions (front end side) folded inward to the surface side of the planar body 22, the rear portion of the planar body 22 is placed in the frame body 24 (between the pair of side frame portions 25a). The first portion 22a can be formed (tensioned). Further, the front portion of the planar body 22 is disposed so as to protrude from the frame-like body 24 to the front of the seat (to form the second portion 22b). Thus, in this embodiment, when viewed in the front-rear direction of the sheet, the first portion 22a held by the frame-like body 24 at the end portion of the sheet-like body 22 in the sheet width direction, The two parts 22b are formed in parallel.

(Formation of reinforcement structure)
Next, in this embodiment, both end portions (both end portions in the sheet width direction) of the planar body 22 are folded inward at the second portion 22b (see FIGS. 2 to 5). Then, by fixing each end portion (substantially full width) inwardly to the surface side of the planar body 22, the planar body 22 is doubly overlapped at both ends of the second portion 22b (not easily stretched). ) Each reinforcing structure 30 can be formed. The reinforcing structure 30 of the present embodiment is formed in a band shape along the end of the planar body 22, and is disposed over substantially the entire length of the second portion 22b. An assembly hole 30H (through hole) into which the bolt material BM2 can be inserted is formed at the front end of the reinforcing structure 30, and is arranged so as to face the end (assembly hole H1) of the front frame 4a. To do. With this reinforcing structure 30, the end portion in the sheet width direction of the second portion 22b can be made harder to extend than the central portion CM viewed in the sheet width direction (see FIG. 5). In this embodiment, each reinforcing structure 30 and each side frame portion 25a (a frame-like body portion that holds the first part 22a) are arranged side by side in the seat front-rear direction (the first part 22a and the second part 22b). The same tension is easily applied).

  Examples of the fixing method of each end (substantially full width) folded inside include various methods such as stitching, pressure bonding (adhesion or fusion by applying pressure), and curing with resin. For example, after the folded end portions are overlapped on the surface side of the planar body 22, a molten resin is applied thereto and impregnated. By doing so, it is possible to form the reinforcing structure 30 formed by impregnating and curing the resin at both ends of the second portion 22b (not easily stretched). In the configuration in which the resin is impregnated and cured, the width of the planar body can be slightly shortened, and the second portion 22b can be cured (restrained) without being folded inward at both ends.

[Installation work of support member]
Referring to FIGS. 2 and 3, the rear side of support member 20 (the portion from mounting portion 26 to latching portion 28) is assembled to seat frame 4 </ b> F. At this time, in this embodiment, the rear side (the latching portion 28) of the frame-like body 24 is assembled to the rear frame 4c (second assembly portion AM2) in a latching manner. Moreover, the front part (attachment part 26) of the frame-shaped body 24 is applied to the inner surface side in the middle of the side frame 4b. In this state, the bolt material BM1 is inserted and attached to the hole H2 of the side frame 4b while the tip (hole) of the attachment part 26 is aligned. By doing so, the rear side of the support member 20 (the frame-like body 24, the first portion 22a of the planar body 22) can be disposed in the seat frame 4F.

  Next, the front side (the second portion 22b of the planar body 22) of the support member 20 is assembled to the front frame 4a (first assembly portion AM1) (see FIGS. 2 to 4). In the present embodiment, while applying tension in the sheet width direction to the second portion 22b, the front frame 4a is pulled while pulling each reinforcing structure 30 (the end in the sheet width direction of the planar body 22) forward and outward of the sheet, respectively. Pull to the side. And the bolt material BM2 is inserted in these, aligning the front part (to-be-assembled hole part 30H) of each reinforcement structure 30 with the assembly hole part H1 of each front frame 4a (refer FIG. 4). At this time, in the present embodiment, since the end portion of the planar body 22 is reinforced by the reinforcing structure 30, the shape is maintained as much as possible (only the front side to be stretched does not extend outward from the seat). Thus, it can be stably assembled to the front frame 4a (see FIGS. 3 and 5). In this state, the front portion (mounting hole portion 23b) of the planar body 22 is inserted into the corresponding claw portion 4d and assembled, whereby the front portion side of the planar body 22 is disposed in the front frame 4a. it can.

[Supporting Mode of Seat Pad by Supporting Member]
With reference to FIGS. 1 and 2, the seat pad 4 </ b> P is covered with the seat cover 4 </ b> S while being disposed on the seat frame 4 </ b> F via the support member 20. In this embodiment, the seat pad 4P (front side) is pressed by the occupant's thigh when the occupant is seated. At this time, the front part of the seat pad 4P is supported (supported) from the back side by the second part 22b of the planar body 22, but in this type of configuration, the second part 22b is stretched with good performance. It is desirable. Therefore, in the present embodiment, the second portion 22b of the planar body 22 is disposed in a state where a uniform tension (see arrow T in FIG. 5) is applied in the sheet width direction in each reinforcing structure 30. For this reason, in the present embodiment, the seat pad 4P is supported with good performance at the second portion 22b (a second portion 22b in which the spring force is hardly different from the central portion CM to the end portion) with a uniform tension. The seating property of the seat is suitably maintained (see FIGS. 3 and 5).

  As described above, in this embodiment, in each reinforcing structure 30, the end portion in the sheet width direction of the second portion 22b is relatively difficult to extend, so that the planar body 22 of the second portion 22b is as uniform as possible. You can apply a lot of tension. Further, in the present embodiment, the planar body 22 can be stably assembled to the front frame 4a in a state where an appropriate tension is applied at the reinforcing structure 30 (a portion that is relatively difficult to extend). For this reason, according to the present Example, the non-holding location of the planar body 22 with respect to the frame-shaped body 24 can be stretched with good performance.

[Modification]
Here, the configuration of the reinforcing structure may take various configurations in addition to the configuration described above. For example, the reinforcing structure 30A of this modification is a separate member from the planar body 22, and includes a first reinforcing member 31 and a second reinforcing member 32 (see FIG. 6). The first reinforcing member 31 is a substantially rectangular member (long in the front-rear direction of the seat) that can be disposed along the end of the second portion 22b, and is formed of a material (metal, hard resin, etc.) having excellent strength. The The second reinforcing member 32 is a member having the same shape and the same size as the first reinforcing member 31, and is formed of a material that is also excellent in strength.

  And in this modification, when attaching the planar body 22 to the frame-shaped body 24, the 1st reinforcement member 31 and the 2nd reinforcement member 32 are arrange | positioned facing each other across the edge part of the sheet | seat width direction of the 2nd site | part 22b. To do. Then, by integrating both the reinforcing members 31 and 32 into the planar body 22 by a technique such as stitching or pressure bonding, the reinforcing structure 30A composed of these two members can be attached to the end portion of the second portion 22b. . In the present modification, the configuration of the planar body 22 itself is changed as much as possible with a separate reinforcing member 31 and 32 (reinforcing reinforcement structure 30A) (with a relatively simple configuration). The planar body 22 of the part 22b can be stretched with good performance.

  The vehicle seat of the present embodiment is not limited to the above-described embodiment, and various other embodiments can be taken. For example, in the present embodiment, the configuration of the first assembly unit AM1 and the like and the second assembly unit AM2 and the like are illustrated, but the configuration of both the units is not intended to be limited. For example, the first assembly part may be the front part side of the side frame in addition to the front frame. Moreover, each assembly part can be comprised with the member different from the basic composition of a seat frame. For example, each assembling portion (a short cylindrical or flat member or the like) protruding from the inner surface of the side frame toward the inside of the seat can be provided separately from the front frame and the lower frame.

  Moreover, in this embodiment, although the structure of the support member 20 (planar body 22, frame-shaped body 24) was illustrated, it is not the meaning which limits the structure of the member. The configuration (shape, dimensions, etc.) of the planar body and the frame body can be appropriately changed as long as the seat pad can be supported. For example, the frame-like body can be formed of a wire-like (bar-like) or flat plate-like member. In addition to the method exemplified in the second part, the method for attaching the planar body (first part) to the frame-like body can be exemplified by various methods such as bolting, and the sheet-like body on the resin layer around the frame-like body. It is also possible to integrate the end portions. In this embodiment, the frame-like body is provided with the attachment portion and the latching portion. However, the configuration of each portion can be appropriately changed as long as it can be assembled (attached) to the corresponding frame portion.

  In the present embodiment, the configuration (shape, dimension, formation position, number of formation, etc.) of the reinforcing structure 30 is exemplified, but the configuration of the same member is not limited. For example, in this embodiment, an example in which each reinforcing structure 30 is attached to the front frame 4a while being pulled forward and outward of the seat has been described. The tension direction of each reinforcing structure is not particularly limited as long as an appropriate tension can be applied to the planar body. In the present embodiment, the example in which the reinforcing structures are provided at both ends of the planar body (an example of left-right symmetry) has been described. However, the reinforcing structure is provided only on one side of the planar body, and the other side of the planar body is framed. It can also be set as the structure (right-and-left asymmetric structure) attached to a shape body. In addition to the bolt material, the reinforcing structure can be directly attached to the seat frame (attachment portion) by a method such as caulking or clip fastening. Further, the seat frame (assembled portion) and the reinforcing structure can be assembled indirectly via other members such as a hook material (substantially C-shaped ring material). If an appropriate tension can be applied to the planar body, the reinforcing structure does not need to be assembled to the assembling portion.

  Moreover, in this embodiment, although the structure (shape, dimension, formation position, formation number, etc.) of the 1st site | part 22a and the 2nd site | part 22b was illustrated, the structure of these each part can be changed suitably. For example, a plurality or a single second part can be formed at an appropriate position of the planar body (front, rear, or center when viewed in the front-rear direction of the seat). In addition, when forming a 2nd site | part in the rear part (center) of a planar body, a reinforcement structure can be assembled | attached to a rear frame (side frame).

  In the modification, an example in which the flat (planar) first reinforcing member 31 and the second reinforcing member 32 are used has been described. Each reinforcing member may have a rod shape (wire shape) such as a wire material. In addition, the first reinforcing member and the second reinforcing member can be formed as an integral member, and in this case, the first reinforcing member and the second reinforcing member can be attached to the planar body while being folded in half at the hinge at the center of both members. In addition, the structure of an Example and the structure of a modification can be used in combination as appropriate.

  In the present embodiment, the configuration of the vehicle seat 2 (the seat cushion 4, the seat back 6, the headrest 8, and the slide rail 9) is illustrated, but the configuration of the seat can be appropriately changed (omitted). For example, the various frames such as the side frames may each have a bar shape or a flat plate shape. In the present embodiment, the seat cushion 4 has been described as an example. However, the configuration of the present embodiment and the like can be applied to various seat configurations such as the seat back 6. And the structure of this embodiment is applicable to vehicle seats, such as a vehicle, an aircraft, and a train.

2 Vehicle Seat 4 Seat Cushion 6 Seat Back 8 Headrest 9 Slide Rail 4S Seat Cover 4P Seat Pad 4F Seat Frame 4a Front Frame 4b Side Frame 4c Rear Frame 20 Support Member 22a First Part 22b Second Part 22 Planar Body 24 Frame Shaped body 25a Side frame portion 25b Rear frame portion 26 Attachment portion 28 Hook portion 30 Reinforcement structure 30H Hole portion 31 First reinforcement member 32 Second reinforcement member AM1 First assembly portion AM2 Second assembly portions BM1, BM2 Bolt material CM The central part of the planar body viewed in the sheet width direction

Claims (3)

A frame-shaped seat frame forming a seat skeleton, a seat pad that forms a seat outer shape and can elastically support an occupant, and a support member that supports the seat pad, and the support member includes the seat pad. A planar body that can be supported, and a frame body that can hold an end of the planar body in the sheet width direction;
The support member is disposed in the seat frame, and the sheet pad is supported from the back surface side of the sheet body attached to the frame body, and the sheet body in the sheet width direction is supported. In the vehicle seat in which the first part held by the frame-like body and the second part that is not held by the frame-like body are formed at the end,
A vehicle seat in which a reinforcing structure that is less likely to extend than a central portion of the planar body viewed in the sheet width direction is provided at an end of the second portion in the sheet width direction.   2. The vehicle seat according to claim 1, wherein the reinforcing structure is separate from the planar body and a planar or linear reinforcing member is attached to an end of the second portion in the seat width direction. The seat frame includes a side frame forming a seat side skeleton, a first assembly portion disposed on one side of the side frame as viewed in the extending direction of the side frame, and a direction in which the side frame is different from the one side. A second assembly part to be arranged on the other side as seen,
When the support member is assembled to the first assembly portion and the second assembly portion and disposed in the seat frame, the second portion is in a tensioned state in the seat width direction, and the reinforcement is made The vehicle seat according to claim 1 or 2, wherein a structure is assembled to at least one of the first assembly portion and the second assembly portion.

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