Vehicle seat

Abstract

To provide a vehicle seat which enables easy attachment of a child seat.SOLUTION: A seat 1 includes: a seat back 20 including a back frame 21; a seat cushion 10; and connection members 31 for connecting connectors CN provided at a child seat. The seat cushion 10 includes: a cushion frame 11; and a cushion pad 12 which covers the cushion frame 11. The connection member 31 protrudes from a seat cushion 10 side end of the back frame 21 to a seating surface 10s of the seat cushion 10. In the cushion pad 12, a wire 110 is provided at adjacent areas AR each located adjacent to the seat front side of a tip 31A of the connection member 31 in a top view.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a vehicle seat. [Background technology]

[0002] Patent Document 1 describes a configuration in which a locking device for a child seat is guided by a guide wire in a rear seat cushion and engages with a child seat anchor.

[0003] Patent Documents 2 and 3 describe the use of an elastic restoring force of an insert wire provided in the seat back pad to maintain the shape of the seat back pad after the child seat connector is removed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2002-337579 A [Patent Document 2] JP 2017-217984 A [Patent Document 3] JP 2017-217985 A Summary of the Invention [Problem to be solved by the invention]

[0005] A child seat is generally attached to a vehicle seat by engaging the connector of the child seat with a fixing member protruding from a part of the vehicle seat. During this attachment process, if the weight of the child seat is large, the seat cushion on which the child seat is placed sinks, particularly in the vicinity of the connector. If the amount of sinking is large, the distance between the connector of the child seat and the fixing member becomes large, and the child seat needs to be lifted by that distance. If the fixing member protrudes from the seat cushion, it is possible to attach the child seat without lifting the child seat by adjusting the height of the fixing member in anticipation of the sinking of the seat cushion. However, if the fixing member is provided in a place other than the seat cushion, the deterioration of the attachment due to the sinking of the seat cushion may become significant.

[0006] An object of the present invention is to provide a vehicle seat that allows easy installation of a child seat. [Means for solving the problem]

[0007] One embodiment of the vehicle seat of the present invention is a vehicle seat having a seat back including a back frame, a seat cushion, and a connecting member for connecting a connector provided on a child seat, wherein the seat cushion includes a cushion frame and a cushion pad covering the cushion frame, the connecting member protrudes from an end of the back frame on the seat cushion side toward a seating surface of the seat cushion, and a member having a higher rigidity than the cushion pad is provided inside the cushion pad in an adjacent area adjacent to the front side of the seat to the tip of the connecting member when viewed from above. Effect of the Invention

[0008] According to the present invention, the child seat can be easily installed. [Brief description of the drawings]

[0009] [Figure 1] 1 is an external view showing a schematic configuration of a seat 1 mounted in a vehicle such as an automobile. [Diagram 2] 2 is a plan view showing a schematic view of the sheet 1 shown in FIG. 1 as viewed from above. [Diagram 3] FIG. 3 is a schematic cross-sectional view taken along the line AA in FIG. 2. [Figure 4] 2 is a side view showing a schematic view of the seat 1 shown in FIG. 1 as viewed from the left side. [Diagram 5] FIG. 3 is a schematic cross-sectional view taken along the line BB in FIG. 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] FIG. 1 is an external view showing a schematic configuration of a seat 1 mounted on a vehicle such as an automobile. The seat 1 is configured so that an occupant sits facing in the direction in which the vehicle moves forward. In the following, directions in the seat 1 are defined based on the occupant seated on the seat 1. Specifically, the front of the occupant is described as the forward direction Fr, the opposite direction of the forward direction Fr is described as the rearward direction Rr, and these are collectively referred to as the front-rear direction. The right side of the occupant is described as the right direction R, the opposite direction of the right direction R is described as the left direction L, and these are collectively referred to as the left-right direction. Of the directions perpendicular to the front-rear direction and the left-right direction, the direction toward the ground is described as the downward direction D, and the opposite direction of the downward direction D is described as the upward direction U.

[0011] Fig. 2 is a plan view showing the sheet 1 shown in Fig. 1 as viewed from above. Fig. 3 is a schematic cross-sectional view taken along the line AA in Fig. 2. Fig. 4 is a side view showing the sheet 1 shown in Fig. 1 as viewed from the left. Fig. 5 is a schematic cross-sectional view taken along the line BB in Fig. 2.

[0012] As shown in FIG. 1, the seat 1 includes a seat cushion 10 that supports the buttocks and thighs of an occupant seated on the seat 1, and a seat back 20 that supports the waist and back of the occupant.

[0013] The seat cushion 10 includes a cushion frame 11 made of metal or the like that forms the skeleton of the seat cushion 10, a cushion pad 12 (see FIG. 3) made of polyurethane or the like that covers the cushion frame 11, and a trim cover 13 that serves as a surface covering the cushion pad 12.

[0014] As shown in FIG. 2, the cushion frame 11 includes a front frame 11Fr extending in the left-right direction and disposed on the front side, a right frame 11R extending rearward from the right end of the front frame 11Fr, a left frame 11L extending rearward from the left end of the front frame 11Fr, and a rear frame 11Rr connecting the rear end of the right frame 11R and the rear end of the left frame 11L.

[0015] As shown in FIG. 1, the seat back 20 includes a back frame 21 made of metal or the like that forms the skeleton of the seat back 20, a back pad (not shown) that covers the back frame 21, and a trim cover 23 that serves as a skin that covers the back pad.

[0016] The back frame 21 comprises an upper frame 21U extending in the left-right direction and positioned on the upper side, a right frame 21R extending downward from the right end of the upper frame 21U, a left frame 21L extending downward from the left end of the upper frame 21U, and a lower frame 21D connecting the lower end of the right frame 21R and the lower end of the left frame 21L.

[0017] Both ends of the lower frame 21D are fixed to the vehicle framework. In the example of Fig. 1, the lower frame 21D is provided with four connecting members 31 arranged side by side for fixing an ISOFIX type child seat, which is a child seat fixing method according to the ISO (International Organization for Standardization) standard, to the seat 1. The connecting members 31 are formed, for example, of a U-shaped wire with both end edges fixed to the lower frame 21D by welding or the like.

[0018] A pair of connectors (connectors CN shown in FIG. 5) provided on the child seat are engaged with the first and second pair of connecting members 31 counting from the right in FIG. 1, thereby fixing the child seat to the seat 1. Similarly, a pair of connectors provided on the child seat are engaged with the third and fourth pair of connecting members 31 counting from the right in FIG. 1, thereby fixing the child seat to the seat 1.

[0019] As shown in FIG. 4, the connection member 31 is provided to protrude forward and downward from the lower frame 21D toward the seat surface 10s (upper surface) of the seat cushion 10. As shown in FIG. 5, the tip 31A of the connection member 31 is located forward of the rear end edge of the seat cushion 10. In other words, the tip 31A of the connection member 31 overlaps with the seat surface 10s of the seat cushion 10 in a top view. As shown in FIG. 4, in this embodiment, the vertical distance between the seat surface 10s of the seat cushion 10 and the tip 31A of the connection member 31 is very small. This distance is, for example, the same as or smaller than the thickness of the end CNe of a U-shaped connector (connector CN illustrated in FIG. 5) in a child seat that abuts against the seat surface 10s of the seat cushion 10.

[0020] 1, an opening 23H for exposing the connecting member 31 is provided at the front and lower end of the back pad and trim cover 23 in the seat back 20. This opening 23H can be closed by, for example, a covering member (not shown).

[0021] Fig. 2 shows the adjacent area AR adjacent to the front side of the tip portion 31A of the connection member 31. In the example of Fig. 2, the adjacent area AR partially overlaps with the rear frame 11Rr of the cushion frame 11. In order to prevent the adjacent area AR from significantly sinking downward due to the weight of the child car seat when the connector CN of the child car seat is placed in the adjacent area AR, a member having a higher rigidity than the cushion pad 12 is provided inside the cushion pad 12.

[0022] 3, a substantially U-shaped wire 110 is provided in the adjacent region AR between the rear frame 11Rr and the upper surface of the cushion pad 12. The wire 110 protrudes upward from the rear frame 11Rr, and both end edges are fixed to the rear frame 11Rr by welding or the like.

[0023] Specifically, the wire 110 includes a right side portion 110R extending upward from the rear frame 11Rr, a tip portion 110U extending leftward from the upper end of the right side portion 110R, and a left side portion 110L extending downward from the left end of the tip portion 110U to the rear frame 11Rr. The right side portion 110R and the left side portion 110L may be inclined with respect to the up-down direction. The tip portion 110U is preferably parallel to the left-right direction (in other words, parallel to the tip portion 31A of the connection member 31). In addition, the left-right width of the tip portion 110U is preferably equal to or larger than the left-right width of the connection member 31. The wire 110 may be integrally molded with the rear frame 11Rr.

[0024] According to the seat 1 configured as above, in the adjacent area AR that may overlap the connector CN of the child seat in a top view when the child seat is placed on the seat surface 10s of the seat cushion 10, the wire 110 is present on the upper surface side inside the cushion pad 12, and this wire 110 can suppress the sinking of the cushion pad 12 in the adjacent area AR. For example, as shown in Fig. 5, even if the connector CN of the child seat sinks in the adjacent area AR, the sinking can be stopped at the position of the upper end of the wire 110. In addition, the stiffness of the wire can suppress the sinking of the connector CN itself.

[0025] As a result, the connector CN can be connected to the connecting member 31 with almost no lifting of the child seat, and the child seat can be easily attached. In particular, in the seat 1, the connecting member 31 is configured to protrude toward the seat surface 10s of the seat cushion 10, so that the distance between the tip 31A of the connecting member 31 and the seat surface 10s can be made small when no load is applied to the seat cushion 10. Since this distance is small, even if the rigidity of the wire 110 is somewhat lowered, that is, even if the amount of sinking of the cushion pad 12 becomes somewhat large, it is possible to prevent the distance between the lower end of the connector CN and the tip 31A of the connecting member 31 from becoming large, and the connector CN can be connected to the connecting member 31 without lifting the child seat significantly. By reducing the rigidity of the wire 110 in this way, the manufacturing cost can be reduced.

[0026] Furthermore, according to the seat 1, since the connecting member 31 is not provided on the seat cushion 10, the cushion pad 12 can be densely provided around the wire 110, which also makes it possible to suppress sinking. In addition, since the rigidity of the cushion pad 12 can be used to suppress sinking, sinking can be suppressed without increasing the rigidity of the wire 110 more than necessary, and manufacturing costs can be reduced.

[0027] In addition, it is preferable that the distance L1 (see FIG. 5) from the upper surface of the cushion pad 12 to the upper end of the wire 110 in the adjacent region AR is 2.0 cm or less. By configuring in this way, it is possible to sufficiently suppress the sinking of the cushion pad 12 due to the weight of the child seat.

[0028] Moreover, it is preferable that the distance L1 is 1.0 cm or more. With this configuration, the seating comfort can be sufficiently improved even when an occupant sits directly above the wire 110. In other words, by setting the distance L1 in the range of 1.0 cm or more and 2.0 cm or less, it is possible to both suppress sinking and improve seating comfort.

[0029] Moreover, it is preferable that the distance in the front-rear direction between the front end edge of the connection member 31 and the center of the front-rear direction of the wire 110 (distance L2 shown in FIG. 4) is set in the range of 1.0 cm to 2.0 cm. This makes it possible to both suppress sinking and improve the sitting comfort.

[0030] The seat 1 may be configured such that a member having higher rigidity than the cushion pad 12, such as foamed polypropylene, is embedded in the cushion pad 12 instead of the wire 110. Even with this configuration, sinking can be similarly suppressed. When using foamed polypropylene instead of the wire 110, the foamed polypropylene can be embedded by integral molding when molding the cushion pad 12. With this configuration, sinking can be suppressed simply by changing the design of the cushion pad 12, and manufacturing can be easily performed.

[0031] In the above description, the seat 1 installed in a vehicle such as an automobile has been taken as an example of an embodiment of a vehicle seat. However, the present invention is not limited to seats installed in vehicles, and can be applied to seats installed in vehicles such as aircraft and ships.

[0032] As described above, this specification discloses the following items. Note that, in parentheses, the components corresponding to those in the above-mentioned embodiment are shown, but the present invention is not limited to these.

[0033] (1) A vehicle seat (seat 1) having a seat back (seat back 20) ​​including a back frame (back frame 21), a seat cushion (seat cushion 10), and a connection member (connection member 31) for connecting a connector (connector CN) provided on a child seat, The seat cushion includes a cushion frame (cushion frame 11) and a cushion pad (cushion pad 12) that covers the cushion frame, The connecting member protrudes from an end (lower frame 21D) of the back frame on the seat cushion side toward a seat surface (seat surface 10s) of the seat cushion, A vehicle seat in which, inside the cushion pad, in a top view, a member (wire 110) having higher rigidity than the cushion pad is provided in an adjacent area (adjacent area AR) adjacent to the front side of the seat of the tip end (tip end 31A) of the connecting member.

[0034] According to (1), when the child seat is placed on the seat cushion, a highly rigid member is present inside the cushion pad in an adjacent area of ​​the connecting member that may overlap with the connector of the child seat in a top view, and the rigidity of this member makes it possible to suppress sinking of the cushion pad in the adjacent area. As a result, the connector can be connected to the connecting member without lifting the child seat, making it easy to install the child seat.

[0035] (2) A vehicle seat as described in (1), The vehicle seat, wherein a distance (distance L1) from the surface of the cushion pad on the seat back side in the adjacent region to the member is 2.0 cm or less.

[0036] According to (2), sinking of the seat cushion due to the weight of the child seat can be sufficiently suppressed.

[0037] (3) A vehicle seat according to (2), A vehicle seat, wherein the distance is 1.0 cm or more.

[0038] According to (3), even when a passenger sits directly above the component, the seating comfort can be sufficiently improved.

[0039] (4) A vehicle seat according to any one of (1) to (3), The cushion frame includes a rear frame (rear frame 11Rr) provided at an end portion on the seat back side, The member is provided between the rear frame and a surface of the cushion pad on the seat back side.

[0040] According to (4), sinking of the cushion pad can be suppressed by utilizing the rigidity of the rear frame and the rigidity of the components, which simplifies the design of the components and reduces manufacturing costs.

[0041] (5) A vehicle seat according to (4), The vehicle seat is configured such that the member is a wire (wire 110) protruding from the rear frame to the front surface side.

[0042] According to (5), the components can be formed simply by changing the design of the cushion frame, making manufacturing easy.

[0043] (6) A vehicle seat according to any one of (1) to (3), A plurality of the connection members are provided, The vehicle seat, wherein the member is provided in correspondence with each of the plurality of connection members.

[0044] According to (6), it is possible to improve the sitting comfort in areas where no components are present. [Explanation of symbols]

[0045] 1 sheet 10s Seat 10 Seat cushion 11L, 21L Left frame 11R, 21R Right Frame 11Fr Front Frame 11Rr Rear Frame 11 Cushion frame 12 Cushion pad 13,23 Trim cover 20 Seat back 21D Lower Frame 21U Upper Frame 21 Back Frame 23H opening 31A,110U tip 31 Connection parts 110L left side 110R right side 110 Wire

Claims

1. A vehicle seat having a seat back including a back frame, a seat cushion, and a connecting member for connecting a connector provided on a child seat, The seat cushion includes a cushion frame and a cushion pad covering the cushion frame. The connecting member protrudes from an end of the back frame on the seat cushion side toward a seat surface of the seat cushion, The vehicle seat, wherein a member having a higher rigidity than the cushion pad is provided inside the cushion pad in an adjacent region adjacent to a front side of the seat of the tip end of the connecting member in a top view.

2. 2. The vehicle seat according to claim 1, The vehicle seat, wherein the distance from the surface of the cushion pad on the seat back side in the adjacent region to the member is 2.0 cm or less.

3. 3. The vehicle seat according to claim 2, A vehicle seat, wherein the distance is 1.0 cm or more.

4. A vehicle seat according to any one of claims 1 to 3, The cushion frame includes a rear frame provided at an end portion on the seat back side, The member is provided between the rear frame and a surface of the cushion pad on the seat back side.

5. 5. The vehicle seat according to claim 4, The member is a wire protruding from the rear frame to the front surface side.

6. A vehicle seat according to any one of claims 1 to 3, A plurality of said connection members are provided, The vehicle seat, wherein the member is provided one for each of the plurality of connection members.

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