JP2020132029A - Vehicle seat lower part structure - Google Patents

Abstract

To provide a vehicle seat lower part structure which has a good appearance and can align a vehicle seat with a cover member precisely.SOLUTION: A lower part structure of a vehicle seat 20 has a lower space 23 below a seat cushion 30. The seat cushion 30 has: a cushion body part 31 having a seating surface 31A; and an extension part 35 which extends to the vehicle floor 11 side from a part as seen in a seat width direction at a front part of the cushion body part 31. In the lower part structure of the vehicle seat 20, a cover member 50 covering the lower space 23 is disposed on at least one side as seen in the seat width direction with respect to the extension part 35, and the cover member 50 is fixed to the vehicle seat 20.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle seat substructure.

Patent Document 1 discloses a vehicle seat that constitutes a rear seat of a vehicle and a cover that covers a lower space formed below the vehicle seat. In this lower space, a seat frame is arranged so as to surround the battery. The seat frame is fixed to the floor panel and supports the vehicle seat.

Japanese Unexamined Patent Publication No. 2015-24678

In the configuration disclosed in Patent Document 1, the cover is fixed to the seat frame so as to close the opening in the lower space. This cover is arranged at the center of the vehicle seat in the vehicle width direction. Separate covers are arranged on both sides of this cover in the vehicle width direction so as to close the opening of the lower space. The lower part of the vehicle seat is covered with a cover over the entire width direction of the vehicle.

However, in the above configuration, the entire lower part of the front surface of the soft seat cushion is covered with a hard-textured cover, which may make the seat cushion look thin and give the occupant an uncomfortable impression. .. Therefore, there is room for improvement in terms of the appearance of the lower part of the vehicle seat. Further, in the above configuration, since the cover is fixed to the seat frame separate from the vehicle seat, the positions of the vehicle seat and the cover may shift due to an assembly error of each member or the like. Therefore, there is room for improvement from the viewpoint of accurately aligning the positions of the vehicle seat and the cover member.

An object of the present invention is to provide a substructure of a vehicle seat that looks good and can accurately align the positions of the vehicle seat and the cover member.

The lower structure of the vehicle seat of the present invention is a lower structure of the vehicle seat having a lower space below the seat cushion, and the seat cushion includes a cushion main body having a seating surface and the cushion main body. The front portion has an extension portion that extends from a part in the seat width direction toward the vehicle floor side, and the lower space is provided on at least one of the extension portions in the seat width direction. A cover member is arranged to cover the cover member, and the cover member is fixed to the vehicle seat.

According to the lower structure of the vehicle seat, for example, the seat cushion looks bulky by the amount of the extension portion as compared with the configuration in which the entire lower surface of the front surface of the seat cushion is covered with the cover member without the extension portion. It can give the occupant the impression that it is comfortable to sit on. Then, the cover member arranged on the side of the extending portion has a structure of being fixed to the vehicle seat, so that, for example, the cover member is fixed to a member separate from the vehicle seat. In comparison, the displacement between the vehicle seat and the cover member can be suppressed.

In the above configuration, the extension portion has a shape extending from the central portion in the seat width direction toward the vehicle floor side in the front portion of the cushion main body portion, and the cover member is formed in the seat width direction of the extension portion. It may be arranged on both sides. According to such a configuration, for example, the number of parts related to the cover member covering the lower space can be reduced as compared with the configuration in which a separate cover member is set instead of the extending portion. ..

In the above configuration, a seat side garnish is provided on the side of the vehicle seat, and the cover member includes a plate-shaped first plate portion fixed to the vehicle seat and the vehicle seat. The plate-shaped second plate portion arranged on the side surface side and extending from the first plate portion toward the back surface side of the seat and the end portion of the second plate portion on the back surface side of the seat are provided on the seat side. A contact portion that abuts on the garnish is provided, and the contact portion is regulated to be displaced in at least one direction in the seat width direction with respect to the seat side garnish in a state of being in contact with the seat side garnish. The second plate portion may be configured to approach and separate from the vehicle seat in the seat width direction. According to such a configuration, since the contact portion is positioned at least one of the seat side garnishes in the seat width direction, the first plate portion fixed to the vehicle seat follows the displacement of the vehicle seat. Even if the displacement is in the seat width direction, such a displacement can be absorbed by the second plate portion approaching or separating from the vehicle seat. Therefore, the clearance between the seat side garnish and the cover member can be set small to improve the appearance of the lower part of the vehicle seat.

In the above configuration, the seat side garnish has an opening that opens toward the front of the seat, and the contact portion may be inserted into the opening. According to such a configuration, the cover member and the seat side garnish can be assembled by inserting the contact portion into the opening, and the displacement of the cover member can be regulated by the seat side garnish with a simple configuration. it can.

In the above configuration, the vehicle seat includes a wire frame which is a skeleton member of the seat cushion and a bracket fixed to the wire frame, and the cover member is fixed to the bracket. You may. According to such a configuration, the reaction force received by the cover member from the parts around the vehicle seat can be absorbed by the wire frame and the seat cushion via the bracket. Therefore, the clearance between the peripheral parts of the vehicle seat and the cover member can be set small to improve the appearance of the lower part of the vehicle seat.

According to the present invention, it is possible to provide a substructure of a vehicle seat that looks good and can accurately align the positions of the vehicle seat and the cover member.

FIG. 1 is a schematic perspective view of the sheet according to the first embodiment. FIG. 2 is a schematic cross-sectional view taken along the line II-II of FIG. FIG. 3 is a schematic cross-sectional view taken along the line III-III of FIG. FIG. 4 is a schematic perspective view of a state in which the cover member is fixed to the seat as viewed diagonally from the front. FIG. 5 is a perspective view of a state in which the cover member is fixed to the seat, with the seat cushion omitted, as viewed diagonally from the rear. FIG. 6 is a schematic cross-sectional view taken along the line VI-VI of FIG. FIG. 7 is a schematic cross-sectional view showing the vicinity of the edge portion of the second plate portion in the second embodiment.

<Example 1>
The substructure of the seat (vehicle seat) 20 of the first embodiment of the present invention will be described with reference to FIGS. 1 to 6. The drawings show the X-axis, the Y-axis, and the Z-axis. The X-axis direction corresponds to the seat front-rear direction of the sheet 20, the Y-axis direction corresponds to the sheet width direction of the sheet 20, and the Z-axis direction corresponds to the vertical direction of the sheet 20. In the lower structure of the seat 20 provided in the vehicle (vehicle) of this embodiment, the left side of the vehicle and the right side of the vehicle are symmetrically configured. In the following description, the structure on the right side of the vehicle will be described unless otherwise specified. , The description of the structure on the left side of the vehicle will be omitted.

As shown in FIG. 1, a vehicle floor (vehicle floor) 11 is provided below the seat 20. The vehicle floor 11 includes a floor panel 11A constituting the body panel and a flexible floor carpet 11B laid above the floor panel 11A (see FIG. 2). A seat side garnish 13 (see FIG. 4) and a scuff plate 17 are provided on the side of the seat 20 (both sides in the seat width direction). The scuff plate 17 is a plate-shaped resin member, and is arranged at the lower edge of the door opening at a position below the seat side garnish 13.

The seat 20 is configured as a rear seat provided on the rear side of the passenger compartment of the hybrid vehicle. Specifically, the seat 20 is configured as a so-called bench seat that can seat three people in the same row. The seat 20 is arranged so that the front of the seat faces the front of the vehicle and the seat width direction coincides with the vehicle width direction. A seat frame serving as a pedestal is not provided below the seat 20, and the seat 20 is provided in a state of being fixed to a metal body panel at a portion (not shown).

The seat 20 includes a seat cushion 30 that supports the buttocks and the like of the seated person, and a seat back 21 that supports the back of the seated person. The seat 20 has a lower space 23 below the seat cushion 30 (see FIG. 3). An object O is arranged in the lower space 23. In this embodiment, the battery as the power source of the hybrid vehicle and the duct for cooling the battery are exemplified as the object O.

As shown in FIG. 1, the seat cushion 30 has a cushion main body portion 31 having a seating surface 31A and an extending portion 35. The cushion body 31 has a long block shape in the seat width direction. The extending portion 35 has a shape extending from the central portion in the seat width direction toward the vehicle floor 11 side in the front portion of the cushion main body portion 31. In other words, the front portion of the seat cushion 30 has a configuration in which the thickness dimension of the central portion is larger than the thickness dimension of both ends in the seat width direction. The extension portion 35 extends directly above the vehicle floor 11 in the vertical direction. Further, the extension portion 35 is provided from a position corresponding to the leg of the seated person on the left side to a position corresponding to the leg of the seated person on the right side in the seat width direction.

As shown in FIG. 2, the extending portion 35 is formed so that the soft material 32 constituting the cushion main body portion 31 projects toward the vehicle floor 11. The extending portion 35 is covered with a covering material 33 together with the cushion main body portion 31. A lower space 23 is formed behind the extending portion 35.

In the lower structure of the seat 20 of this embodiment, cover members 50 covering the lower space 23 are arranged on both sides in the seat width direction with respect to the extending portion 35. The lower structure of the seat 20 has a structure in which the cover member 50 and the extending portion 35 are arranged in the seat width direction. The cover member 50 is fixed to the seat 20. In this embodiment, the cover member 50 is fixed to the bracket 40 provided on the seat 20 (see FIG. 3).

As shown in FIG. 3, the seat 20 includes a wire frame 37 which is a skeleton member of the seat cushion 30, and a bracket 40 fixed to the wire frame 37. The wire frame 37 has a substantially rectangular shape extending along the front, rear, left, and right peripheral edges of the seat cushion 30, and is inserted into the soft material 32. Further, in the bracket 40, a portion fixed to the wire frame 37 is embedded in the soft material 32 together with the wire frame 37. The bracket 40 is not directly fixed to the body panel and can be displaced in conjunction with the wire frame 37.

As shown in FIGS. 4 and 5, the bracket 40 has a first extending portion 41 extending along the wire frame 37 and one end (end on the vehicle interior side) of the first extending portion 41 toward the vehicle floor 11. It is provided with a second extension portion 43 extending by the wire. The bracket 40 has a substantially L-shape as a whole, and is arranged in a posture extending along the upper edge portion of the cover member 50 and the side edge portion of the vehicle interior. In this embodiment, the bracket 40 is configured by assembling the first metal component 40A and the second resin component 40B arranged inside the first component 40A to each other. The first component 40A is welded to the wire frame 37 at a plurality of locations (three locations in this embodiment) of the first extension portion 41. The second component 40B has a plurality of (three in this embodiment) fastening holes 45 to which the cover member 50 is fastened. The fastening holes 45 are located near the central portion of the first extension portion 41 and at the upper and lower portions of the second extension portion 43. Since the bracket 40 is composed of the first part 40A and the second part 40B, the first metal part 40A is welded to the wire frame 37 to secure the fixing strength of the bracket 40, and the second part made of resin. A fastening hole 45 is provided in 40B to facilitate designing a fastening structure between the cover member 50 and the bracket 40 as appropriate. For example, it becomes easy to configure the cover member 50 to be detachably fixed to the bracket 40.

As shown in FIGS. 4 and 5, the cover member 50 includes a plate-shaped first plate portion 51 and a plate-shaped second plate portion 53 extending from the first plate portion 51 toward the back surface side of the seat. A contact portion 55 provided at the end of the second plate portion 53 on the back surface side of the seat and in contact with the seat side garnish 13 is provided. Further, the cover member 50 includes an extending portion 57 having a shape extending from the lower ends of the first plate portion 51 and the second plate portion 53 toward the front of the seat and the outside of the vehicle interior. The cover member 50 is a resin molded product in which each of these parts is integrally molded.

The first plate portion 51 and the second plate portion 53 are composed of a series of plate-shaped portions that extend while bending toward the back surface side of the seat toward the outside in the seat width direction. The first plate portion 51 and the second plate portion 53 are arranged along the front surface and the side surface of the cushion main body portion 31 and close the opening of the lower space 23. The first plate portion 51 is a portion that mainly closes the opening of the lower space 23 from the front, and the second plate portion 53 is a portion that mainly closes the opening of the lower space 23 from the side.

The first plate portion 51 is fixed to the sheet 20. Specifically, a fastening portion 52 to be fastened to the sheet 20 is provided on the back surface side of the first plate portion 51 (see FIG. 3). A plurality of fastening portions 52 (three in this embodiment) are provided so as to project from the first plate portion 51 and correspond to the fastening holes 45 of the bracket 40. A clip 59 is locked to the fastening portion 52. When the clip 59 is inserted into the fastening hole 45 while the clip 59 is locked to the fastening portion 52, the fastening portion 52 is fastened to the fastening hole 45 via the clip 59. In this way, the cover member 50 is fixed to the seat 20 at three fastening portions. In the entire seat 20, the cover members 50, 50 arranged on both sides in the seat width direction are fixed to the seat 20 at a total of six fastening portions.

The first plate portion 51 has a first opening 51A that opens toward the front (inside the vehicle interior). The first opening 51A is a first opening for sucking air for cooling the battery from the vehicle interior and guiding it to the duct. Further, on the back surface of the first plate portion 51, a reinforcing rib 51B extending along the sheet width direction is formed.

The second plate portion 53 is arranged on the side surface side of the sheet 20. The second plate portion 53 has a shape that closes between the lower surface of the cushion main body portion 31 and the scuff plate 17 and the seat side garnish 13, and the width dimension decreases toward the back surface side of the seat.

The extending portion 57 extends to a position where the front end portion overlaps above the floor carpet 11B and the side end portion overlaps below the scuff plate 17. With such a configuration, even if the cover member 50 is displaced in the seat width direction and the seat front-rear direction following the displacement of the seat 20, there is an unintentional gap between the floor carpet 11B and the scuff plate 17 and the cover member 50. It can be suppressed from occurring. The extending portion 57 has a second opening 57A that opens forward (on the vehicle interior side) at the front end portion. The second opening 57A is a second opening for sucking air for cooling the battery from the vehicle interior and guiding it to the duct.

As shown in FIG. 6, the seat side garnish 13 is a plate-shaped resin member, and is arranged so as to close between the seat 20 and the door opening. The seat side garnish 13 has a groove portion 14 that opens toward the front of the seat and extends in the vertical direction, and a hole portion 15 that opens toward the front of the seat at the upper portion of the groove portion 14. The opening of the groove 14 and the opening of the hole 15 are examples of openings that open toward the front of the seat. The groove portion 14 is formed so that the plate-shaped seat side garnish 13 is bent. The hole portion 15 has a rectangular shape in a plan view and is formed so as to penetrate the seat side garnish 13.

The contact portion 55 is restricted from being displaced in at least one direction in the seat width direction with respect to the seat side garnish 13 in a state of being in contact with the seat side garnish 13. In the present embodiment, the contact portion 55 includes an edge portion 55A on the seat back side of the second plate portion 53, and a protruding portion 55B protruding rearward from the edge portion 55A. The edge portion 55A is inserted into the opening of the groove portion 14 of the seat side garnish 13. As the edge portion 55A abuts on the inner surface of the groove portion 14, the contact portion 55 is restricted from being displaced to the outside of the vehicle interior with respect to the seat side garnish 13. Further, the protruding portion 55B is inserted into the opening of the hole portion 15 of the seat side garnish 13. The contact portion 55 is restricted from being displaced to both sides in the seat width direction with respect to the seat side garnish 13 by the protruding portion 55B contacting the inner surface of the hole portion 15.

The second plate portion 53 is configured to approach and separate from the seat 20 in the seat width direction. Specifically, the second plate portion 53 is composed of a part of the cover member 50 made of resin, and a predetermined amount of elastic deformation is allowed. The second plate portion 53 is not fixed to the seat 20, and when the first plate portion 51 is fixed to the seat 20, the second plate portion 53 is cantilevered from the first plate portion 51 with the back surface side of the seat as the free end side. It is configured to extend. Further, the reinforcing rib 51B is not formed on the back surface of the second plate portion 53, and the passenger compartment of the reinforcing rib 51B provided on the first plate portion 51 when an external force acts on the end portion on the back surface side of the seat. The structure is such that stress tends to concentrate near the outer end. Due to such a configuration, when the positions of the seat side garnish 13 and the seat 20 (first plate portion 51) are displaced, the second plate portion 53 is elastically deformed, so that the positions of the seat side garnish 13 and the seat 20 are positioned. The deviation can be absorbed. A cushion material 19 is arranged between the second plate portion 53 and the object O arranged in the lower space 23 so that the second plate portion 53 and the object O do not come into direct contact with each other. There is.

Subsequently, the effect of this embodiment will be described. The lower structure of the seat 20 of this embodiment has a lower space 23 below the seat cushion 30. The seat cushion 30 has a cushion main body 31 having a seating surface 31A, and an extension 35 extending from a part of the cushion main body 31 in the seat width direction toward the vehicle floor 11. A cover member 50 that covers the lower space 23 is arranged on at least one of the extending portions 35 in the seat width direction. Then, the cover member 50 is fixed to the seat 20.

According to the lower structure of the seat 20 of the present embodiment, for example, the seat cushion 30 has no extension portion 35 and the entire lower surface of the front surface of the seat cushion is covered with the cover member. Looks bulky and can give the occupant the impression of being comfortable to sit on.

Then, the cover member 50 arranged on the side of the extending portion 35 has a structure of being fixed to the seat 20, for example, a structure in which the cover member 50 is fixed to a member separate from the seat 20. In comparison with the above, the displacement between the seat 20 and the cover member 50 can be suppressed. This effect will be specifically described by comparing with a comparative example in which a seat frame is provided as a member separate from the seat 20. In the comparative example, a structure in which the seat frame is fixed to the body panel and the cover member is fixed to the seat frame is illustrated. In such a comparative example, the displacement between the seat and the cover member becomes large depending on the assembly error between the cover member and the seat frame and the assembly error between the seat frame and the seat. Further, when the seat is displaced with respect to the body panel, the seat frame fixed to the body panel is not displaced together with the seat, and the seat and the cover member may be displaced from each other. On the other hand, in this embodiment, since the cover member 50 is fixed to the seat 20, the position of the seat 20 and the cover member 50 is displaced due to an assembly error as compared with the configuration in which the cover member 50 is fixed to the seat frame. Can be reduced. Further, even when the seat 20 is displaced with respect to the body panel, the displacement of the cover member 50 together with the seat 20 can reduce the displacement between the seat 20 and the cover member 50.

As a result, it is possible to provide a lower structure of the seat 20 that looks good and can accurately align the positions of the seat 20 and the cover member 50.

Further, in this embodiment, since the extending portion 35 is formed of the soft material 32, when the leg or the like of the seated person touches the extending portion 35, a soft touch is obtained. Further, in a configuration in which a cover member separate from the seat is attached instead of such an extension portion 35, a fastening portion for attaching the separate cover member is required separately, but in this embodiment, the seat cushion By providing the extension 35 on the 30 itself, such a fastening is not required. Therefore, it is possible to reduce the number of fastening portions for fastening the cover members 50, 50 covering the lower space 23 as the entire seat 20.

Further, in the comparative example, in the structure having a lower space for accommodating the object O below the seat cushion, the seat frame shall be a pedestal in the shape of a tower surrounding the circumference of the object O, and the seat shall be fixed on the pedestal. Can be considered. In such a structure, the seat frame is a large structure having rigidity capable of supporting the seat and having a size corresponding to the size of the object O. Further, a fixing portion for fixing the seat frame and the body panel and a fixing portion for fixing the seat frame and the seat are required, and the number of fixing portions is increased. On the other hand, in this embodiment, such a large seat frame is abolished, and the cover member 50 is fixed to the seat 20 (in this embodiment, a small bracket 40 locally provided around the cover member 50). Since the structure is used, the number of fixed parts can be reduced and the weight of the vehicle can be reduced.

Further, in this embodiment, the extension portion 35 is provided at the central portion of the seat cushion 30 in the seat width direction, and the cover members 50 are provided on both sides of the extension portion 35 in the seat width direction. According to such a configuration, for example, the number of parts related to the cover member covering the lower space 23 can be reduced as compared with the configuration in which a separate cover member is set instead of the extending portion 35. Can be done.

Further, in this embodiment, a seat side garnish 13 is provided on the side of the seat 20. The cover member 50 has a plate-shaped first plate portion 51 fixed to the seat 20 and a plate-shaped first plate portion 51 arranged on the side surface side of the seat 20 and extending from the first plate portion 51 toward the back surface side of the seat. A two-plate portion 53 and a contact portion 55 provided at an end portion of the second plate portion 53 on the back surface side of the seat and in contact with the seat side garnish 13 are provided. The contact portion 55 is restricted from being displaced in at least one direction in the seat width direction with respect to the seat side garnish 13 in a state of being in contact with the seat side garnish 13. The second plate portion 53 is configured to approach and separate from the seat 20 in the seat width direction. According to such a configuration, since the contact portion 55 is positioned at least one of the seat side garnish 13 in the seat width direction, the first plate portion 51 fixed to the seat 20 follows the displacement of the seat 20. Even if the displacement is made in the width direction of the sheet, such a displacement can be absorbed by the second plate portion 53 approaching or separating from the sheet 20. Therefore, the clearance between the seat side garnish 13 and the cover member 50 can be set small to improve the appearance of the lower portion of the seat 20.

Further, in this embodiment, the seat side garnish 13 has a groove portion 14 that opens toward the front of the seat, and the edge portion 55A of the cover member 50 is inserted into the groove portion 14. Further, the seat side garnish 13 has a hole portion 15 that opens toward the front of the seat, and the protruding portion 55B of the cover member 50 is inserted into the hole portion 15. According to such a configuration, the cover member 50 and the seat side garnish 13 can be assembled by inserting the protruding portion 55B into the hole portion 15 and the edge portion 55A into the groove portion 14, and the structure is simple. The seat side garnish 13 can regulate the displacement of the cover member 50.

Further, in the present embodiment, the seat 20 includes a wire frame 37 which is a skeleton member of the seat cushion 30, and a bracket 40 fixed to the wire frame 37. The cover member 50 is fixed to the bracket 40. According to such a configuration, the reaction force received by the cover member 50 from the parts around the seat 20 (for example, the floor carpet 11B, the scuff plate 17, etc.) is absorbed by the wire frame 37 and the seat cushion 30 via the bracket 40. can do. Therefore, the clearance between the parts around the seat 20 and the cover member 50 can be set small to improve the appearance of the lower portion of the seat 20.

<Example 2>
Next, the lower structure of the sheet 20 according to the second embodiment will be described with reference to FIG. 7 and the like. In the second embodiment, the structure of the opening of the seat side garnish and the contact portion of the cover member is different from that of the first embodiment. In the following description of the second embodiment, the same reference numerals are given to the same configurations as those of the first embodiment, and detailed description thereof will be omitted.

The contact portion 155 is restricted from being displaced in at least one direction in the seat width direction with respect to the seat side garnish 113 in a state of being in contact with the seat side garnish 113. In this embodiment, the seat side garnish 113 has a groove portion 14 that opens toward the front of the seat and extends in the vertical direction. The seat side garnish 113 does not have the hole 15 of the first embodiment. The opening of the groove 14 is an example of an opening that opens toward the front of the seat. In this embodiment, the contact portion 155 is configured as an edge portion on the seat back side of the second plate portion 53 housed in the opening of the groove portion 14. Then, the outer surface of the vehicle interior of the contact portion 155 abuts on the inner surface of the groove 14, so that the contact portion 155 is restricted from being displaced to the outside of the vehicle interior with respect to the seat side garnish 113.

<Other embodiments>
The present invention is not limited to Examples 1 and 2 described with reference to the above description and drawings, and for example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the structure in which the cover members are arranged on both sides of the extending portion in the seat width direction is illustrated, but the positions and points of the cover members are not limited to this. The lower structure of the seat may be a structure in which one cover member is arranged on one side of the extending portion in the seat width direction, and the position thereof can be appropriately changed according to an object or the like accommodated in the lower space. ..
(2) In addition to the above embodiment, the position, shape, and size of the cover member can be appropriately changed according to the object accommodated in the lower space and the like. Further, the number of fastening portions can be appropriately changed according to the shape and size of the cover member.
(3) In the above embodiment, the configuration in which the extending portion extends from the central portion in the seat width direction to the vehicle floor side in the front portion of the cushion main body portion is illustrated, but the present invention is not limited to this. The position and shape of the extending portion can be appropriately designed according to the position and shape of the cover member.
(4) In the above embodiment, the configuration in which the extension portion extends directly above the vehicle interior floor is illustrated, but the extension portion may have a shape extending from the surroundings to the vehicle floor side.
(5) In the above embodiment, the configuration in which the cover member includes the first plate portion, the second plate portion, and the contact portion is illustrated, but the configuration of the cover member is not limited to this. For example, the cover member may be configured so as not to come into contact with the seat side garnish.
(6) In the above embodiment, the configuration in which the cover member is fixed to the bracket provided on the seat has been illustrated, but the present invention is not limited to this. For example, the member to which the cover member is fixed in the seat can be appropriately changed according to the position of the cover member.
(7) In the above embodiment, the seat configured as the rear seat of the vehicle is illustrated, but the present invention is not limited to this. The seat may be configured as a front seat or a second seat of the vehicle.
(8) In the above embodiment, the vehicle seat is exemplified as the seat, but the seat is not limited to this. The seat can also be applied to a seat used for a vehicle such as a ship or an aircraft other than a vehicle.

The above examples are for illustration purposes only and are not to be construed as limiting the invention. Although the present invention has been described with reference to typical embodiments, the language used in the description and illustration of the invention is understood to be descriptive and exemplary rather than restrictive. As described in detail here, modifications can be made within the scope of the appended claims without departing from the scope or nature of the invention in that form. Although specific structures, materials and examples have been referred to herein in detail of the invention, it is not intended to limit the invention to the disclosures herein, but rather the invention is claimed in the accompanying claims. It shall cover all functionally equivalent structures, methods and uses within the scope.

11 ... Vehicle floor (vehicle floor), 13,113 ... Seat side garnish, 14 ... Groove (opening), 15 ... Hole (opening), 20 ... Seat (vehicle seat), 30 ... Seat cushion, 31 ... Cushion body, 31A ... Seating surface, 35 ... Extension, 37 ... Wire frame, 40 ... Bracket, 50 ... Cover member, 51 ... First plate, 53 ... Second plate, 55,155 ... Contact

Claims (5)

It is a substructure of a vehicle seat that has a lower space below the seat cushion.
The seat cushion has a cushion main body portion having a seating surface, and an extension portion in the front portion of the cushion main body portion that extends from a part in the seat width direction toward the vehicle floor side.
A cover member covering the lower space is arranged on at least one of the extending portions in the seat width direction.
A lower structure of a vehicle seat in which the cover member is fixed to the vehicle seat. The extending portion has a shape extending from the central portion in the seat width direction toward the vehicle floor side in the front portion of the cushion main body portion.
The lower structure of the vehicle seat according to claim 1, wherein the cover member is arranged on both sides of the extending portion in the seat width direction. A seat side garnish is provided on the side of the vehicle seat.
The cover member is
A plate-shaped first plate portion fixed to the vehicle seat,
A plate-shaped second plate portion arranged on the side surface side of the vehicle seat and extending from the first plate portion toward the back surface side of the seat, and
A contact portion provided at the end of the second plate portion on the back surface side of the seat and in contact with the seat side garnish is provided.
The contact portion is restricted from being displaced in at least one direction in the seat width direction with respect to the seat side garnish in a state of being in contact with the seat side garnish.
The lower structure of the vehicle seat according to claim 1 or 2, wherein the second plate portion is configured to approach and separate from the vehicle seat in the seat width direction. The seat side garnish has an opening that opens toward the front of the seat.
The lower structure of the vehicle seat according to claim 3, wherein the contact portion is inserted into the opening. The vehicle seat includes a wire frame that is a skeleton member of the seat cushion, and a bracket fixed to the wire frame.
The lower structure of a vehicle seat according to any one of claims 1 to 4, wherein the cover member is fixed to the bracket.