Vehicle seat components and vehicle seat

Abstract

This facilitates the separation of the front and back components. [Solution] The seat back 14, which is a seat component for a vehicle, comprises a front member 50 that is in contact with the occupant, a back member 58 that is positioned on the opposite side from the occupant via the front member 50, a plurality of hook fasteners that connect the front member 50 and the back member 58 and release the connection when an external force is applied in the direction of separation that separates the front member 50 and the back member 58, and a first engaging portion 68 and a second engaging portion 74 provided on the front member 50, and a first engaged portion 70 and a second engaged portion 76 provided on the back member 58 that engage in the direction of separation to limit the separation, and a first separation limiting portion 66 and a second separation limiting portion 72 that can release the restriction when the front member 50 is displaced relative to the back member 58 in a direction intersecting the direction of separation.

Description

Technical Field

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

Background Art

[0002] In the chair disclosed in the following Patent Document 1, a frame support portion supported by a back support rod made of a metal pipe or the like is provided protruding on the back member of the backrest, and the backrest is fixed to the back support rod by tightening the front member and the back member of the backrest with a bolt inserted from a bolt insertion portion provided in the back member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] In the above prior art, the workability of loosening the bolted connection between the front member and the back member of the backrest is poor, so the work of separating the front member and the back member is complicated. In particular, in vehicle seats, there may be no space to secure for loosening the bolt with a tool on the back side of the backrest, so there is room for improvement from the perspective of facilitating the separation work of the front member and the back member.

[0005] An object of the present invention is to obtain a vehicle seat component and a vehicle seat that can facilitate the separation work of a front member and a back member.

Means for Solving the Problem

[0006] A vehicle seat component of the first embodiment is a vehicle seat component that constitutes a part of a vehicle seat, and comprises: a front member that contacts a sitter; a back member that is positioned on the opposite side from the sitter via the front member; a connecting member that connects the front member and the back member and releases the connection when an external force is applied in the direction of separation that separates the front member and the back member; and a separation limiting member which is composed of an engaging portion provided on one of the front member and the back member and an engaged portion provided on the other, the engaging portion and the engaged portion engaging in the direction of separation to limit the separation, and the restriction can be released when the front member is displaced relative to the back member in a direction intersecting the direction of separation.

[0007] In the first embodiment of the vehicle seat component, a front member that contacts the occupant and a back member positioned on the opposite side of the occupant via the front member are connected by a connecting member. One of the front member and the back member is provided with an engaging portion of the separation limiting portion, and the other of the front member and the back member is provided with a receiving portion of the separation limiting portion. In this separation limiting portion, the engaging portion and the receiving portion engage in the direction of separation between the front member and the back member, thereby limiting the separation between the front member and the back member. When separating the front member and the back member, for example, a tool such as a spatula can be inserted between the front member and the back member and an external force in the direction of separation can be applied to release the connection of the connecting member. After that, the restriction by the separation limiting portion can be released by displacing the front member in a direction intersecting the direction of separation relative to the back member. Thus, the separation of the front member and the back member can be made easier than in the conventional method.

[0008] In the second embodiment of the vehicle seat component, the engaging portion is formed in a hook shape, and the engaged portion has an insertion opening into which the engaging portion is inserted.

[0009] In the second embodiment of the vehicle seat component, a hook-shaped engaging portion provided on one of the front member and the back member is inserted into an insertion opening for a engaged portion provided on the other of the front member and the back member. This allows the separation between the front member and the back member to be limited with a simple configuration.

[0010] The vehicle seat component of the third embodiment includes, in the second embodiment, a first separation limiting portion arranged on one side in an orthogonal direction perpendicular to the separation direction, and a second separation limiting portion arranged on the other side in the orthogonal direction.

[0011] In the third embodiment of the vehicle seat component, since it is provided with first and second separation limiting parts arranged on opposite sides of each other in a direction perpendicular to the direction of separation between the front member and the back member, the separation between the front member and the back member can be effectively limited.

[0012] In the fourth embodiment of the vehicle seat component, in the third embodiment, the displacement direction of the surface member for releasing the restriction by the first separation limiting portion is the other of the orthogonal directions, and the displacement direction of the surface member for releasing the restriction by the second separation limiting portion is one of the orthogonal directions.

[0013] In the fourth embodiment of the vehicle seat component, the displacement direction of the front member for releasing the separation restriction between the front member and the back member by the first separation restriction part and the displacement direction of the front member for releasing the separation restriction between the front member and the back member by the second separation restriction part are set in opposite directions, so that the separation restriction between the front member and the back member is less likely to be released unintentionally.

[0014] The fifth embodiment of the vehicle seat component, in any one of the first to fourth embodiments, has a front pan frame formed in the shape of a plate, a pad superimposed on the surface of the front pan frame, and a front surface covering that covers the pad from the opposite side of the front pan frame and whose outer edge is locked to the front pan frame.

[0015] In the fifth embodiment of the vehicle seat component, since the surface member is configured as described above, the surface member can be made simple in its configuration, and the comfort of the occupant can be ensured by the pad described above.

[0016] A vehicle seat constituent member according to a sixth aspect is the vehicle seat constituent member according to any one of the first to fifth aspects, wherein the back member includes a back side pan frame formed in a plate shape, and a back side skin that covers the surface of the back side pan frame and has an outer edge portion locked to the back side pan frame.

[0017] In the vehicle seat constituent member according to the sixth aspect, since the back member is configured as described above, the back member can have a simple configuration, and the appearance of the back member can be improved by the back side skin described above.

[0018] A vehicle seat according to a seventh aspect includes any one of a seat cushion that supports the buttocks and thighs of a seated person, a seat back that supports the back of the seated person, and a headrest that supports the head of the seated person, and said any one is the vehicle seat constituent member according to any one of the first to sixth aspects.

[0019] In the vehicle seat according to the seventh aspect, since any one of the seat cushion, the seat back, and the headrest is the vehicle seat constituent member according to any one of the first to sixth aspects, the effects described above can be achieved. Effects of the Invention

[0020] As described above, according to the vehicle seat constituent member and the vehicle seat of the present invention, the separation work of the front member and the back member can be facilitated. Brief Description of the Drawings

[0021] [Figure 1] It is a side view showing the vehicle seat according to the embodiment. [Figure 2] It is a cross-sectional view showing a cut surface along the F2-F2 line in Fig. 1. [Figure 3] It is a perspective view of the back member of the seat back of the vehicle seat according to the embodiment, viewed from the front side. [Figure 4] It is a perspective view of the front member of the seat back of the vehicle seat according to the embodiment, viewed from the back side. [Figure 5] This is a first explanatory view for explaining a method of attaching a front member to a back member of a seat back. [Figure 6] This is a second explanatory view for explaining a method of attaching a front member to a back member of a seat back. [Figure 7] This is a third explanatory view for explaining a method of attaching a front member to a back member of a seat back. [Mode for Carrying Out the Invention]

[0022] Hereinafter, a vehicle seat 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7. In each drawing, some reference numerals may be omitted for the purpose of making the drawings easy to see. Further, arrows FR, LH and UP appropriately described in each drawing respectively indicate the front direction, the right direction and the upper direction of the vehicle seat 10. Hereinafter, when the description is made simply using the directions of front, rear, left, right, up and down, the directions refer to the directions relative to the vehicle seat 10.

[0023] As shown in FIG. 1, the vehicle seat 10 according to the present embodiment includes a seat cushion 12 that supports the buttocks and thighs of a seated person (not shown), and a seat back 14 that supports the back of the seated person. The seat back 14 is of a headrest integrated type integrally provided with a headrest 16 that supports the head of the seated person. The seat cushion and the seat back 14 are attached to the floor portion (illustration omitted) of the vehicle via a frame 18. The seat back 14 corresponds to the "vehicle seat constituent member" in the present invention. It should be noted that a configuration in which the seat back 14 and the headrest 16 are separate bodies may also be adopted.

[0024] As shown in FIG. 2, the seat back 14 includes a front member 50 that contacts the back of the seated person, a back member 58 disposed on the side opposite to the seated person (here, the rear side) via the front member 50, a plurality of surface fasteners 64 as connecting members that separably connect the front member 50 and the back member 58, and a first separation restricting portion 66 and a second separation restricting portion 72 that restrict the separation between the front member 50 and the back member 58.

[0025] The front member 50 is composed of a front pan frame 52, a pad 54, and a front skin 56. The front pan frame 52 is formed in a roughly rectangular plate shape from, for example, resin, with its longitudinal direction roughly in the vertical direction and its thickness direction roughly in the front-to-back direction. The left and right sides of the front pan frame 52 are curved diagonally toward the front. The pad 54 is formed in a roughly rectangular plate shape from, for example, a foam such as urethane foam, and is placed on top of the front surface of the front pan frame 52. The front skin 56 is made of, for example, cloth, leather, rigid leather, etc., and covers the pad 54 from the front side (i.e., the side opposite to the front pan frame 52). The outer edge of the front skin 56 is folded back toward the rear side (back side) of the front pan frame 52 and is secured to the front pan frame 52 by means of adhesive or other means.

[0026] The back member 58 is composed of a back pan frame 60 and a back surface 62, and is fixed to the frame 18 described above. The back pan frame 60 is formed in the shape of a roughly rectangular plate, for example from resin, with the longitudinal direction roughly in the vertical direction and the thickness direction roughly in the front-to-back direction. The left and right sides of the back pan frame 60 are curved diagonally toward the front. The back surface 62 is composed of, for example, cloth, leather, rigid leather, etc., and covers the rear surface (front) of the back pan frame 60. The outer edge of the back surface 62 is folded back toward the front side (back side) of the back pan frame 60 and is locked to the back pan frame 60 by means of adhesive or other means.

[0027] As shown in Figures 3 and 4, multiple hook fasteners 64 are arranged at intervals along the outer edge of the seat cushion 12. Each hook fastener 64 consists, for example, of a hook 64A attached to the lower surface of the outer edge of the front pan frame 52 and a loop 64B attached to the upper surface of the outer edge of the back pan frame 60. The hook 64A and loop 64B of each hook fastener 64 are attached to each other, connecting the front member 50 and the back member 58. Each hook fastener 64 is configured to release the above connection when an external force is applied in the direction of separation (in this case, the front-to-back direction) that separates the front member 50 and the back member 58. Note that in Figures 5 to 7, the illustration of multiple hook fasteners 64 is omitted.

[0028] The first separation limiting portion 66 is located on the upper part of the seat back 14 (i.e., on one side of the seat back 14 in a direction perpendicular to the separation direction) and is composed of a first engaging portion 68 provided on the front member 50 and a first engaged portion 70 provided on the back member. The second separation limiting portion 72 is located on the lower part of the seat back 14 (i.e., on the other side of the seat back 14 in a direction perpendicular to the separation direction) and is composed of a second engaging portion 74 provided on the front member 50 and a second engaged portion 76 provided on the back member.

[0029] The first engaging portion 68 and the second engaging portion 74 are, for example, integrally extending from the rear surface of the front pan frame 52 and are formed in a hook shape. The first engaging portion 68 is composed of a rear extension portion 68A extending backward from the rear surface of the front pan frame 52 and an upward extension portion 68B extending upward from the rear end of the rear extension portion 68A, forming an L shape when viewed from the left-right direction. The second engaging portion 74 is composed of a rear extension portion 74A extending backward from the rear surface of the front pan frame 52 and a downward extension portion 74B extending upward from the rear end of the rear extension portion 74A, forming an inverted L shape when viewed from the left-right direction.

[0030] The first engaged portion 70 and the second engaged portion 76 extend integrally from the front surface of the rear pan frame 60, for example, and are formed in a substantially U-shape with the rear side open when viewed in the vertical direction. The first engaged portion 70 and the second engaged portion 76 each have insertion openings 70A and 76A that penetrate in the vertical direction. The upper extension 68B of the first engaging portion 68 is inserted into the insertion opening 70A of the first engaged portion 70 from below, and the lower extension 74B of the second engaging portion 74 is inserted into the insertion opening 76A of the second engaged portion 76 from above.

[0031] In the first separation limiting portion 66, the upper extension 68B of the first engaging portion 68 and the first engaged portion 70 engage in the front-rear direction (i.e., the separation direction described above), thereby limiting the front-rear separation between the front member 50 and the back member 58. In the second separation limiting portion 72, the lower extension 74B of the second engaging portion 74 and the second engaged portion 76 engage in the front-rear direction, thereby limiting the front-rear separation between the front member 50 and the back member 58.

[0032] Furthermore, in the first separation limiting portion 66, the front member 50 is displaced downward relative to the back member 58 (i.e., in the other orthogonal direction as described above), thereby releasing the engagement in the front-rear direction between the upper extension 68B of the first engaging portion 68 and the first engaged portion 70 (i.e., the separation limit between the front member 50 and the back member 58). In the second separation limiting portion 72, the front member 50 is displaced upward relative to the back member 58 (i.e., in one orthogonal direction), thereby releasing the engagement in the front-rear direction between the lower extension 74B of the second engaging portion 74 and the second engaged portion 76 (i.e., the separation limit between the front member 50 and the back member 58).

[0033] The length of the upper extension 68B of the first engaging portion 68 (i.e., the portion inserted into the insertion opening 70A of the first engaged portion 70) along the vertical direction is set to be longer than the length of the lower extension 74B of the second engaging portion 74 (i.e., the portion inserted into the insertion opening 76A of the second engaged portion 76) along the vertical direction.

[0034] In the seat back 14 with the above configuration, when attaching the front member 50 to the back member 58, first, as indicated by arrow P in Figure 5, the upper extension 68B of the first engaging portion 68 is inserted from below into the insertion opening 70A of the first engaged portion 70. Next, as indicated by arrow R in Figure 5, the front member 50 is rotated toward the back member 58 so that the second engaging portion 74 is positioned above the second engaged portion 76. Then, as indicated by arrow D in Figure 6, the front member 50 is attached toward the back member 58 In contrast, the second engaging portion is displaced downward, and the downward extension 74B of the second engaging portion is inserted from above into the insertion opening 76A of the second engaged portion 76 (see Figure 7). Subsequently, the hooks 64A and loops 64B of the multiple hook fasteners 64 are attached. With this, the attachment of the front member 50 to the back member 58 is completed. Figures 5 to 7 show the front member 50 and the back member 58 in a schematic manner. Although not shown in the illustrations, the procedure for removing the front member 50 from the back member 58 is the reverse of the attachment procedure described above.

[0035] Next, the operation and effects of this embodiment will be described.

[0036] In the seat back 14 with the above configuration, the front member 50 that is in contact with the occupant and the back member 58 that is located on the opposite side from the occupant via the front member 50 are connected by a plurality of hook fasteners 64. The seat back 14 is provided with a first separation limiting portion 66 and a second separation limiting portion 72. The first separation limiting portion 66 is composed of a first engaging portion 68 provided on the front member 50 and a first engaged portion 70 provided on the back member 58. The second separation limiting portion 72 is composed of a second engaging portion 74 provided on the back member 58 and a second engaged portion 76 provided on the back member 58.

[0037] In the first separation limiting portion 66, the first engaging portion 68 and the first engaged portion 70 engage with the front member 50 and the back member 58 in the direction of separation (in this case, the front-rear direction), thereby limiting the separation between the front member 50 and the back member 58. In the second separation limiting portion 72, the second engaging portion 74 and the second engaged portion 76 engage with the front member 50 and the back member 58 in the direction of separation (in this case, the front-rear direction), thereby limiting the separation between the front member 50 and the back member 58.

[0038] When separating the front member 50 and the back member 58, for example, by inserting a tool such as a spatula between the front member 50 and the back member 58 and applying an external force in the separation direction, the connection between the multiple hook fasteners 64 can be released. Subsequently, by displacing the front member 50 relative to the back member 58 in a direction intersecting the separation direction (in this case, upward and downward), the restrictions imposed by the first separation limiting part 66 and the second separation limiting part 72 can be released. Thus, the separation work between the front member 50 and the back member 58 can be made easier than in the conventional method.

[0039] Furthermore, in this embodiment, the first engaging portion 68 and the second engaging portion 74 are formed in a hook shape, and the first engaged portion 70 and the second engaged portion 76 have insertion openings 70A and 76A into which the first engaging portion 68 and the second engaging portion 74 are inserted. This makes it possible to limit the distance between the front member 50 and the back member 58 with a simple configuration.

[0040] Furthermore, in this embodiment, a first separation limiting portion 66 is provided on one side (here, the upper side) in the orthogonal direction perpendicular to the separation direction, and a second separation limiting portion 72 is provided on the other side (here, the lower side) in the orthogonal direction. This makes it possible to effectively limit the separation between the front member 50 and the back member 58.

[0041] Furthermore, in this embodiment, the displacement direction of the front member 50 for releasing the separation restriction by the first separation restriction part 66 is the other of the orthogonal directions (downward in this case), and the displacement direction of the front member 50 for releasing the separation restriction by the second separation restriction part 72 is the other of the orthogonal directions (upward in this case). In this way, since the displacement direction of the front member 50 for releasing the separation restriction by the first separation restriction part 66 and the displacement direction of the front member 50 for releasing the separation restriction by the second separation restriction part 72 are set in opposite directions, the separation restriction between the front member 50 and the back member 58 is less likely to be released unintentionally.

[0042] Furthermore, in this embodiment, the displacement direction of the front member 50 for releasing the separation restriction by the second separation restriction portion 72 is set upward, and the separation restriction by the second separation restriction portion 72 is maintained by the front member 50 being biased downward by gravity. As a result, even if the connection by the multiple hook fasteners 64 is released during a vehicle collision, for example, the separation restriction by the second separation restriction portion 72 is maintained. Moreover, since the length of the upward extension portion 68B of the first engaging portion 68 along the vertical direction is set to be longer than the length of the downward extension portion 74B of the second engaging portion 74 along the vertical direction, the separation restriction by the first separation restriction portion 66 is maintained as long as the separation restriction by the second separation restriction portion 72 is not released. Thus, separation of the front member 50 and the back member 58 can be effectively avoided.

[0043] Furthermore, in this embodiment, the surface member 50 includes a plate-shaped surface pan frame 52, a pad 54 superimposed on the surface (in this case, the front) of the surface pan frame 52, and a surface skin 56 that covers the pad 54 from the opposite side of the surface pan frame 52, with its outer edge locked to the surface pan frame 52. With this configuration, the surface member 50 can be made simple in structure, and the pad 54 ensures the comfort of the seater.

[0044] Furthermore, in this embodiment, the back member 58 has a plate-shaped back pan frame 60 and a back surface 62 that covers the surface (in this case, the rear surface) of the back pan frame 60 and whose outer edge is locked to the back pan frame 60. With this configuration, the back member 58 can be made simple in structure, and the back surface 62 can improve the appearance of the back member 58.

[0045] In the above embodiment, the case in which the seat back 14 is a vehicle seat component according to the present invention was described, but the invention is not limited to this, and the seat cushion 12 or headrest 16 may also be vehicle seat components according to the present invention.

[0046] Furthermore, although the above embodiment described a case where multiple hook-and-loop fasteners 64 are connecting members, the invention is not limited to this, and the connecting members may be, for example, double-sided tape.

[0047] Furthermore, the present invention can be implemented with various modifications without departing from its spirit. Of course, the scope of the present invention is not limited to the embodiments described above. [Explanation of Symbols]

[0048] 10 Vehicle seats 12 seat cushions 14 Seatback 16 headrests 50 Table member 52 Front Pan Frame 54 pads 56 Upper epidermis 58 Backing material 60 Backside Pan Frame 62 Backside skin 64-sided fastener (connecting member) 66 First separation limiting section 68 First engaging portion 70 First engaged portion 70A Inlet 72 Second separation limiting section 74 Second engagement portion 76 Second engaged portion 76A Insertion port

Claims

1. A vehicle seat component that constitutes a part of a vehicle seat, The surface material that comes into contact with the seated person, A back member is positioned on the opposite side from the seated person via the front member, A connecting member that connects the front member and the back member, and releases the connection when an external force is applied in the direction of separation that separates the front member and the back member, A separation limiting unit comprising an engaging portion provided on one of the front member and the back member and an engaged portion provided on the other, wherein the engaging portion and the engaged portion engage in the separation direction to limit the separation, and the restriction can be released when the front member is displaced relative to the back member in a direction intersecting the separation direction, A vehicle seat component equipped with [a specific feature / feature].

2. The aforementioned engaging portion is formed in the shape of a hook, The seat component for a vehicle according to claim 1, wherein the engaged portion has an insertion opening into which the engaged portion is inserted.

3. The first separation limiting portion is located on one side of the orthogonal direction perpendicular to the separation direction, A second separation limiting portion is located on the other side in the orthogonal direction, A vehicle seat component according to claim 2, comprising the above.

4. The displacement direction of the surface member for releasing the restriction by the first separation limiting unit is the other of the orthogonal directions. The vehicle seat component according to claim 3, wherein the displacement direction of the surface member for releasing the restriction by the second separation limiting portion is one of the orthogonal directions.

5. The aforementioned surface member is A front pan frame formed in a plate shape, A pad placed on the surface of the aforementioned front pan frame, The front surface covers the pad from the opposite side of the front pan frame, and its outer edge is secured to the front pan frame, A vehicle seat component according to claim 1 or claim 2, having the following:

6. The aforementioned backing member is A plate-shaped back pan frame, A back surface covering that covers the surface of the back pan frame, with its outer edge locked to the back pan frame, A vehicle seat component according to claim 1 or claim 2, having the following:

7. A seat cushion that supports the buttocks and thighs of the seated person, A seat back that supports the back of the seated person, A headrest that supports the head of the seated person, It has one of the following: A vehicle seat in which either of the above is a vehicle seat component according to claim 1 or claim 2.

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