Body structure

Abstract

To provide a vehicle body structure which can inhibit movement of an occupant relative to a vehicle body during a collision of a vehicle etc. without impairing riding quality of the occupant.SOLUTION: A vehicle body structure includes a floor pan 4 in which a cushion 3 of a seat, on which an occupant is seated, is disposed on an upper surface. The vehicle body structure includes a bracket 16 installed at the outer end side as seen in a vehicle width direction of an occupant seated position on the upper surface of the floor pan 4 and having protruding parts 44, 45 which protrude upward and extending in an anteroposterior direction. The structure inhibits a portion around a pelvis of the occupant from moving to the outer side as seen in the vehicle width direction relative to the vehicle body during a collision of a vehicle or a similar situation.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a vehicle body structure having a floor pan on whose upper surface a cushion of a seat on which a passenger sits is disposed. [Background technology]

[0002] One vehicle body structure proposed for this type is one in which a recess is provided in the bottom of a cushion body, and a buttocks movement prevention body that fits into the recess is provided on a floor pan (see, for example, Patent Document 1). In the vehicle body structure of Patent Document 1, the buttocks movement prevention body that extends to the left and right is disposed in front of the buttocks support part of the cushion body, thereby preventing the seated occupant's buttocks from moving forward during a frontal collision of the vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 5-1349 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the vehicle body structure described in Patent Document 1, the buttocks movement prevention body is located below the center of the occupant in the left-right direction, and it is not possible to maintain a distance between the buttocks movement prevention body and the left-right center of the occupant's buttocks, which significantly impairs the occupant's riding comfort.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to provide a vehicle body structure that can suppress movement of occupants relative to the vehicle body during a vehicle collision, etc., without compromising the ride comfort of the occupants. [Means for solving the problem]

[0006] According to the present invention, a vehicle body structure is provided which includes a floor pan on whose upper surface the cushion of the seat on which an occupant sits is placed, and a bracket which is installed on the upper surface of the floor pan at the outer end side in the vehicle width direction of the seating position of the occupant, and which has a convex portion which protrudes upward and extends in the fore-and-aft direction.

[0007] According to this vehicle body structure, the convex portion of the bracket extending in the front-rear direction significantly suppresses the outward movement of the occupant's pelvis relative to the vehicle body in the vehicle width direction during a vehicle collision, and accordingly, the forward movement of the occupant relative to the vehicle body is also suppressed. As a result, the amount of deviation of the seat belt restraining position of the occupant from the intended position can be reduced, and the injury value from the seat belt to the occupant can be reduced. In addition, since the bracket is installed on the outer end side of the seating position of the occupant in the vehicle width direction, a constant distance can be maintained between the convex portion of the bracket and the center of the occupant's buttocks in the vehicle width direction, and the riding comfort of the occupant is not impaired by the convex portion of the bracket.

[0008] In the vehicle body structure, the protrusion may be formed so as to increase in width toward the rear.

[0009] According to this vehicle body structure, the protrusion is formed so that its width increases toward the rear, so that the strength of the protrusion increases toward the rear end.

[0010] In the vehicle body structure, the protrusion may be formed in plurality and aligned in the vehicle width direction.

[0011] According to this vehicle body structure, by providing a plurality of protrusions, it is possible to increase resistance to the load from an occupant during a vehicle collision or the like.

[0012] In the above vehicle body structure, the bracket may have at least one connecting portion that is formed between adjacent ones of the protruding portions so as to be continuous with the protruding portions and connects the protruding portions.

[0013] According to this vehicle body structure, by connecting each of the protrusions with the connecting portion, bending of the bracket between each of the protrusions when a load is applied from an occupant to each of the protrusions can be prevented.

[0014] In the vehicle body structure, the protrusions may be formed so that the more outer the protrusions are in the vehicle width direction, the greater the amount of upward protrusion.

[0015] According to this vehicle body structure, the convex portion on the outer side in the vehicle width direction is formed higher than the convex portion on the inner side in the vehicle width direction, thereby increasing the strength of the convex portion on the outer side in the vehicle width direction, and when the occupant moves outward in the vehicle width direction during a vehicle collision, etc., the convex portion on the outer side in the vehicle width direction can reliably hold down the area around the occupant's pelvis. Effect of the Invention

[0016] According to the vehicle body structure of the present invention, it is possible to suppress the movement of the occupant relative to the vehicle body during a vehicle collision or the like without impairing the riding comfort of the occupant. [Brief description of the drawings]

[0017] [Figure 1] 1 is a schematic top view of a vehicle illustrating an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a partial front cross-sectional explanatory view of a vehicle body structure showing a state in which an occupant is seated on a cushion. [Figure 4] FIG. [Diagram 5] FIG. 11 is a partial front cross-sectional explanatory view of a vehicle body structure showing a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] 1 to 4 show one embodiment of the present invention, in which FIG. 1 is a schematic top view of a vehicle, FIG. 2 is a partial perspective explanatory view of the vehicle body structure, FIG. 3 is a partial front sectional explanatory view of the vehicle body structure showing a passenger seated on a cushion, and FIG. 4 is a partial top view of the vehicle body structure.

[0019] As shown in Fig. 1, a vehicle 1 has a seat 2 arranged in a vehicle interior space. In this embodiment, the rear seat 2 has a cushion 3 that forms a seating surface for an occupant. The material of the cushion 3 is arbitrary, but it can be a plastic material such as urethane foam, for example.

[0020] As shown in Fig. 2, the body structure of the vehicle 1 includes a floor pan 4 that forms the floor of the vehicle body. The floor pan 4 has a first-stage bulging portion 41 that bulges upward toward the center in the vehicle width direction, and the cushion 3 is disposed on the upper surface of the first-stage bulging portion 41. The first-stage bulging portion 41 also has a second-stage bulging portion 42 that bulges upward toward the center in the vehicle width direction.

[0021] 3, the cushion 3 covers the first-stage bulging portion 41 across the vehicle width direction. The upper surface 31 of the cushion 3 has a seating surface 32 formed lower than other portions and on which an occupant sits. In this embodiment, the seating surface 32 is formed above the first-stage bulging portion 41 other than the second-stage bulging portion 42 in the vehicle width direction.

[0022] As shown in FIG. 3, the floor pan 4 has a cover member 43 that closes an opening 41a formed in the first-stage bulging portion 41. In this embodiment, the opening 41a is formed to correspond to various devices of the fuel system arranged below the floor pan 4. In addition, a bracket 46 having upwardly protruding convex portions 44, 45 is installed on the widthwise outer side of the cover member 43 on the upper surface of the first-stage bulging portion 41. The bracket 46 is installed on the outer end side in the vehicle width direction of the seating position of the occupant. The cover member 43 and the bracket 46 are fixed to the floor pan 4 by fasteners such as bolts and nuts. The floor pan 4, the cover member 43 and the bracket 46 are made of metal, and in this embodiment, made of steel plate.

[0023] 4, the bracket 46 has a plurality of protruding portions 44, 45 extending in the front-rear direction. The protruding portions 44, 45 are formed side by side in the vehicle width direction. The first protruding portion 44 on the inner side in the vehicle width direction is formed longer forward than the second protruding portion 45 on the outer side in the vehicle width direction.

[0024] Furthermore, the bracket 46 has a connecting portion 47 that is formed between adjacent protrusions 44, 45 and connects the protrusions 44, 45. In this embodiment, the connecting portion 47 connects the front end of the second protrusion 45 to a predetermined position in the front-rear direction of the first protrusion 44. Furthermore, the second protrusion 45 is formed so that its width increases toward the rear, and the strength of the second protrusion 45 increases toward the rear end.

[0025] According to the vehicle body structure configured as described above, the protrusions 44, 45 of the bracket 46 extending in the front-rear direction significantly suppress the outward movement of the occupant's pelvis relative to the vehicle body in the vehicle width direction during a vehicle collision or the like. The second-stage bulging portion 42 suppresses the inward movement of the occupant's pelvis. As a result, the amount of deviation of the seat belt restraining position of the occupant from the intended position can be reduced, and the injury value from the seat belt to the occupant can be reduced. In addition, since the bracket 46 is installed on the outer end side of the seating position of the occupant in the vehicle width direction, a constant distance can be maintained between the protrusions 44, 45 of the bracket 46 and the center of the occupant's buttocks in the vehicle width direction, and the protrusions 44, 45 of the bracket 46 do not impair the riding comfort of the occupant.

[0026] In addition, by providing a plurality of protrusions 44, 45, it is possible to increase resistance to a load from an occupant during a vehicle collision, etc. In addition, by connecting each of the protrusions 44, 45 with the connecting portion 47, it is possible to prevent bending of the bracket 46 between the protrusions 44, 45 when a load is applied to each of the protrusions 44, 45 from the occupant.

[0027] In the above embodiment, the protrusions 44, 45 have substantially the same amount of upward protrusion, but as shown in Fig. 5, the protrusions may be formed so that the more outer the protrusions are, the greater the amount of upward protrusion. In the bracket 146 shown in Fig. 5, the second protrusion 145 on the outer side in the vehicle width direction is formed higher than the first protrusion 44 on the inner side in the vehicle width direction. With this vehicle body structure, the strength of the protrusion 145 on the outer side in the vehicle width direction is increased, and the second protrusion 145 can reliably hold down the pelvis of the occupant when the occupant moves outward in the vehicle width direction during a vehicle collision or the like.

[0028] In the above embodiment, only the second protrusion 45 is formed so that its width increases toward the rear, but the first protrusion 44 may also be formed so that its width increases toward the rear. In addition, although the embodiment shows the case where two protrusions 44, 45 are provided, the number of protrusions is arbitrary, and may be three or more, or may be one. When three or more protrusions are provided, it is preferable that there is at least one connecting portion connecting adjacent protrusions. When three or more protrusions are provided, it is preferable that the protrusions on the outer side in the vehicle width direction are formed to protrude more upward.

[0029] Although the embodiments of the present invention have been described above, the invention according to the claims is not limited to the embodiments described above. It should be noted that not all of the combinations of features described in the embodiments are essential to the means for solving the problems of the invention. [Explanation of symbols]

[0030] 2 seats 3. Cushion 4 Floor Pan 41 1st stage bulge 42 Second stage bulge 44 First protrusion 45 Second protrusion 46 Bracket 145 Second protrusion 146 Bracket

Claims

1. A floor pan on which a seat cushion on which an occupant sits is disposed; a bracket that is installed on an outer end side of an upper surface of the floor pan in a vehicle width direction of a seating position of the occupant, the bracket having a protrusion that protrudes upward and extends in a front-rear direction, The floor pan has a bulging portion that bulges upward toward a center side in a vehicle width direction, The cushion is disposed on an upper surface of the bulge portion, The bracket is mounted on the upper surface of the bulge portion of the vehicle body structure.

2. The vehicle body structure according to claim 1 , wherein the protrusion is formed so as to increase in width toward the rear.

3. The vehicle body structure according to claim 1 or 2, wherein the protrusions are formed in a plurality of positions aligned in the vehicle width direction.

4. The vehicle body structure according to claim 3 , wherein the bracket has at least one connecting portion that is formed between adjacent ones of the protruding portions and is continuous with the respective protruding portions, and connects the respective protruding portions.

5. 5. The vehicle body structure according to claim 3, wherein the protrusions are formed so that the more outer the protrusions are, the greater the amount of upward protrusion.

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