Rear seat cushion and vehicle rear seat

Abstract

To provide a rear seat cushion that can be prevented from being detached from a floor due to a rear part elevating at the time of sudden deceleration or the like of a vehicle, and facilitates packaging, transportation, or the like.SOLUTION: A rear seat cushion 12 is made of a foamed body and includes: a cushion pad placed on a floor 16 of a vehicle; and a wire frame 28 formed of a wire and embedded in the cushion pad. The wire frame 28 includes lock parts 40A, 42A locked to the floor 16 and a rear end portion of the wire frame 28 is arranged in a vehicle lower part of a rear seat back 14. This wire frame 28 includes displacement suppression parts 32A, 34A, 36A, 38A that approach and face a cross member 20 from a vehicle rear part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a rear seat for a vehicle, and more particularly to a rear seat cushion. [Background technology]

[0002] In the mounting structure for a rear seat cushion disclosed in Patent Document 1 below, two wires bent into a roughly U-shape are provided on the left and right sides of a rear seat cushion frame made of multiple bent wires. These wires are inserted under the rear seat back, causing the rear part of the rear seat cushion to rise during sudden deceleration of the vehicle, preventing the rear seat cushion from coming off the vehicle floor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-61264 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above prior art, the left and right wires bent into an approximately U-shape protrude rearward from the rear of the rear seat cushion, so there is room for improvement in terms of making the rear seat cushion easier to pack, transport, etc.

[0005] To provide a rear seat cushion that can prevent the rear portion from rising and coming off the floor when the vehicle suddenly decelerates, and that can be easily packed and transported, and a rear seat for a vehicle equipped with the rear seat cushion. [Means for solving the problem]

[0006] The rear seat cushion of the first aspect includes a cushion pad made of foam and placed on the floor of the vehicle, and a wire frame made of wire, embedded in the cushion pad, having a locking portion that is locked to the floor, and having a rear end portion that is positioned below the rear seat back and has a displacement suppression portion that faces closely to a cross member provided on the floor from the rear of the vehicle.

[0007] In a first aspect of the rear seat cushion, a foam cushion pad is placed on the vehicle floor. A wire frame made of wire is embedded in the cushion pad. The wire frame has a locking portion that is locked to the floor, and its rear end is located below the rear seat back. The wire frame has a displacement suppression portion that faces closely to a cross member provided on the floor from the rear of the vehicle.

[0008] In the event of a rear-end collision while the vehicle is suddenly decelerating or stopped, the inertial force of the impact will displace the rear seat cushion toward the front of the vehicle, causing the rear portion of the rear seat cushion to rise. In this case, the displacement suppression portion of the wire frame presses against the cross member via the cushion pad, thereby suppressing the displacement of the cushion pad toward the front of the vehicle. This keeps the rear end of the wire frame positioned below the rear seat back, preventing the rear portion of the rear seat cushion from rising due to interference with the rear seat back. As a result, the rear seat cushion can be prevented from coming off the floor. Furthermore, because the left and right wires bent in a generally U-shape do not protrude rearward from the rear of the rear seat cushion, the rear seat cushion can be easily packaged and transported.

[0009] The rear seat cushion of the second aspect is the same as that of the first aspect, wherein the wire frame is The vehicle has a frame-shaped portion that is roughly frame-shaped when viewed from above, and a plurality of bridge portions that are arranged at intervals in the left-right direction of the vehicle and bridge between the front and rear of the frame-shaped portion, and the displacement suppression portion is provided on the plurality of bridge portions.

[0010] In a second aspect of the rear seat cushion, the wire frame has a frame-shaped portion and multiple bridging portions. The frame-shaped portion has a generally frame-like shape in a plan view of the vehicle. The multiple bridging portions are arranged at intervals in the left-right direction of the vehicle and bridge between the front and rear of the frame-shaped portion. In this way, the multiple bridging portions arranged at intervals in the left-right direction of the vehicle have displacement suppression portions that face the cross member from the rear of the vehicle in close proximity. This makes it possible to effectively suppress displacement of the rear seat cushion toward the front of the vehicle during sudden deceleration of the vehicle, etc.

[0011] A rear vehicle seat according to a third aspect includes the rear seat cushion according to the first or second aspect on which an occupant sits, and a rear seat back that supports the back of the occupant.

[0012] In the vehicle rear seat of the third aspect, the back of the occupant seated on the rear seat cushion is supported by the rear seat back. Since the rear seat cushion is of the first or second aspect, the above-mentioned effects can be obtained. [Effects of the Invention]

[0013] As described above, according to the present invention, the rear portion of the rear seat cushion can be prevented from rising and coming off the floor when the vehicle suddenly decelerates, and packaging and transportation of the rear seat cushion can be facilitated. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a side view showing a rear seat for a vehicle according to an embodiment and a portion of a rear floor of the vehicle. [Figure 2] FIG. 2 is a first perspective view showing a wire frame of the rear seat cushion and a part of the floor according to the embodiment. [Figure 3] FIG. 2 is a second perspective view showing the wire frame and a part of the floor. [Figure 4] FIG. [Figure 5]FIG. 2 is a cross-sectional view showing a part of the rear seat cushion. [Figure 6] FIG. 10 is a perspective view showing a part of a rear seat cushion according to a comparative example. DETAILED DESCRIPTION OF THE INVENTION

[0015] A vehicle rear seat 10 according to one embodiment of the present invention will be described below with reference to Figures 1 to 5. Note that in each figure, some reference numerals may be omitted to make the drawings easier to understand. Arrows FR, LH, RH, and UP, which are appropriately shown in each figure, respectively indicate the front, left, and top of a vehicle in which the vehicle rear seat 10 is installed. Hereinafter, when the front-rear, left-right, top-bottom directions are used in the description, they will indicate the directions relative to the vehicle.

[0016] 1, a vehicle rear seat 10 according to this embodiment is a three-seater seat and includes a rear seat cushion 12 on which occupants sit and a rear seatback 14 that supports the backs of the occupants. A headrest (not shown) is attached to the upper end of the rear seatback 14.

[0017] The rear seat cushion 12 is composed of a cushion pad 22 (see FIG. 5) placed on the upper surface of the rear floor panel 18 that constitutes the floor 16 of the vehicle, a trim cover 26 (see FIGS. 1 and 5) that covers the surface of the cushion pad 22, and a wire frame 28 (see FIGS. 1 to 5) that is embedded in the cushion pad 22.

[0018] The cushion pad 22 is made of a foam such as urethane foam, and constitutes the cushioning material of the rear seat cushion 12. The trim cover 26 is made of a bag-like structure in which multiple cover pieces made of cloth, leather, synthetic leather, etc. are sewn together, and constitutes the cover material of the rear seat cushion 12.

[0019] A recess 24 is formed on the underside of the front portion of the cushion pad 22, into which a cross member 20 provided on the floor 16 is fitted. The cross member 20 has a hat-shaped cross section that is open downward in the left-right direction, and is joined by welding or other means to the upper surface of the front portion of the rear floor panel 18. The cross member 20 and the recess 24 extend in the left-right direction.

[0020] The wire frame 28, also referred to as an inner wire, is made up of a plurality of bent wires (metallic wire rods) joined by means of welding or the like, and forms the framework of the rear seat cushion 12. The wire frame 28 is made up of a frame-shaped portion 30 formed in a substantially elongated frame shape with its longitudinal direction extending in the left-right direction when viewed from above the vehicle, and a plurality of (four in this example) bridge portions 32, 34, 36, 38 bridged between the front and rear portions of the frame-shaped portion 30.

[0021] The frame-shaped portion 30 includes a front upper portion 30A and a front lower portion 30B extending in the left-right direction in front of the rear seat cushion 12, a rear portion 30C extending in the left-right direction at the rear of the rear seat cushion 12, and a left portion 30D and a right portion 30E extending in the front-to-rear direction on both the left and right sides of the rear seat cushion 12 and connecting the front upper portion 30A, the front lower portion and the rear portion 30C in the front-to-rear direction.

[0022] The left-right middle portion of the front upper portion 30A is bent upward and is disposed above the cross member 20. The front lower portion 30B is disposed in front of the cross member 20. Two left and right locking wires 40, 42 are stretched between the front upper portion 30A and the front lower portion 30B. The left and right locking wires 40, 42 are each made of a metal wire folded in half and are disposed on the left and right sides of the frame portion 30.

[0023] The left and right retaining wires 40, 42 each have a retaining portion 40A, 42A that is bent downward rearward from the upper front portion 30A. Each retaining portion 40A, 42A is U-shaped when viewed in the front-rear direction and is inserted into retaining holes 44, 46 (see FIGS. 2 and 3) formed at both left and right ends of the upper surface of the cross member 20. A resin holder (not shown) is fitted into each retaining hole 44, 46, and each retaining portion 40A, 42A is caught on a hook formed in each holder. This allows each retaining portion 40A, 42A (i.e., the front portion of the wire frame 28) to be retained to the cross member 20 (i.e., the floor 16).

[0024] The four bridging portions 32, 34, 36, 38 are arranged side by side at intervals in the left-right direction and extend in the front-rear direction. The two bridging portions 32, 38 at both ends in the left-right direction are located closer to the center in the left-right direction than the left portion 30D and right portion 30E of the frame-shaped portion 30, with their front portions joined to the front upper portion 30A and the front lower portion 30B and their rear ends joined to the rear portion 30C. The two bridging portions 34, 36 at the center in the left-right direction are located in the center of the frame-shaped portion 30 in the left-right direction, with their front ends joined to the front upper portion 30A and their rear ends joined to the rear portion 30C.

[0025] The portions of the bridging portions 32, 34, 36, 38 between the front upper portion 30A and the rear portion 30C are curved in a generally inverted hat shape when viewed in the left-right direction. The front portions of the bridging portions 32, 34, 36, 38 extend in the front-to-rear direction above the front upper portion 30A, bend downward slightly rearward of the cross member 20, and bend rearward above the rear floor panel 18. As a result, the front portions of the bridging portions 32, 34, 36, 38 are formed with displacement suppression portions 32A, 34A, 36A, 38A that face the cross member 20 closely from the rear. Each displacement suppression portion 32A, 34A, 36A, 38A extends along the rear surface of the cross member 20 and is inclined slightly rearward as it extends downward.

[0026] 1, in the rear seat cushion 12 configured as described above, the rear end of the wire frame 28 is disposed below the rear seat back 14. Specifically, the rear end of the wire frame 28 is disposed rearward of the apex (lowest position) of the lower end of the rear seat back 14 when viewed from the left-right direction.

[0027] In the vehicle rear seat 10 configured as described above, the back of an occupant seated on the rear seat cushion 12 is supported by the rear seat back 14. In this rear seat cushion 12, a cushion pad 22 made of foam is placed on the vehicle floor 16. A wire frame 28 made of a plurality of wires is embedded in the cushion pad 22. The wire frame 28 has left and right engaging portions 40A, 42A that are engaged with the cross member 20 of the floor 16. The rear end of the wire frame 28 is located below the rear seat back 14. The wire frame 28 has a plurality of displacement suppression portions 32A, 34A, 36A, 38A that face the cross member 20 closely from behind.

[0028] When the vehicle suddenly decelerates, such as during a frontal collision, or when a rear-end collision occurs while the vehicle is stopped, the inertial force caused by the impact displaces the rear seat cushion 12 toward the front of the vehicle, causing the rear portion of the rear seat cushion 12 to rise. At this time, the multiple displacement suppression portions 32A, 34A, 36A, and 38A of the wire frame 28 are pressed against the cross member 20 via the cushion pad 22, thereby suppressing the forward displacement of the cushion pad 22. This keeps the rear end of the wire frame 28 positioned below the rear seat back 14, preventing the rear portion of the rear seat cushion 12 from rising due to interference with the rear seat back 14. As a result, the rear seat cushion 12 can be prevented from coming off the floor 16.

[0029] 6, the rear seat cushion 12 is not configured so that the wire 52 bent into a substantially U-shape protrudes rearward from the rear of the rear seat cushion 50, which facilitates packaging and transportation. Also, compared to the comparative example in which the wire 52 protruding rearward from the rear of the rear seat cushion 50 is added, the number of parts, the number of bends in the wire, and manufacturing costs can be reduced.

[0030] In this embodiment, the wire frame 28 includes a frame-shaped portion 30 and four bridging portions 32, 34, 36, and 38. The frame-shaped portion 30 has a generally frame-like shape when viewed from above the vehicle. The bridging portions 32, 34, 36, and 38 are spaced apart in the left-right direction and bridge between the front and rear of the frame-shaped portion 30. Each of the bridging portions 32, 34, 36, and 38 spaced apart in the left-right direction has displacement suppression portions 32A, 34A, 36A, and 38A that face the cross member 20 from behind and in close proximity to it. This effectively suppresses displacement of the rear seat cushion 12 toward the front of the vehicle during, for example, sudden vehicle deceleration.

[0031] In the above embodiment, the wire frame 28 has a configuration including the frame-shaped portion 30 and four bridging portions 32, 34, 36, 38, but the configuration of the wire frame is not limited to this and can be changed as appropriate.

[0032] In addition, the present invention can be implemented with various modifications within the scope of the gist thereof. Furthermore, it goes without saying that the scope of the rights of the present invention is not limited to the above-described embodiment. [Explanation of symbols]

[0033] 10. Rear seat for vehicle 12 Rear seat cushion 14 Rear seat back 16 floors 20 Cross member 22 cushion pad 28 Wireframe 30 Frame-shaped part 32, 34, 36, 38 Bridge section 32A, 34A, 36A, 38A Displacement control section 40A, 42A locking part

Claims

1. a cushion pad made of foam and placed on a vehicle floor; a wire frame made of wire, embedded in the cushion pad, having a locking portion that is locked to the floor, a rear end of which is disposed below the rear seat back of the vehicle, and having a displacement suppression portion that faces closely to a cross member provided on the floor from the rear of the vehicle; Rear seat cushion with

2. The wireframe may include: a frame-shaped portion that is substantially frame-shaped in a plan view of the vehicle; a plurality of bridge portions arranged at intervals in the left-right direction of the vehicle and spanning between the front and rear portions of the frame-shaped portion; and The rear seat cushion according to claim 1 , wherein the displacement suppressing portion is provided on a plurality of the bridge portions.

3. a rear seat cushion according to claim 1 or 2 on which an occupant sits; a rear seat back that supports the back of the occupant; A rear seat for a vehicle.

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