JPH03112791A - Body side part structure of vehicle - Google Patents

Abstract

PURPOSE:To prevent deformation of a side sill or the like, when a vehicle is in side collision, by arranging a reinforcing member along a car width direction of a seat cushion with the reinforcing member opposedly approaching a wall part of a pair of right and left seat brackets arranged in the car width direction. CONSTITUTION:In a side sill 3, arranged in both side parts of a car body, and in a tunnel part 2, formed on a floor 1 in a car room, respectively a seat cushion 9 is supported, while a pair of seat brackets 6, 7, having a pair of wall parts 6a, 7a opposed with a space in a car width direction, are additionally provided. While along the car width direction of the seat cushion 9, a reinforcing member 12, opposedly approaching the above described wall parts 6a, 7a, is additionally provided. In this way, when a vehicle is in side collision, an impact load from a door 4 or the like is stop-reveived by the tunnel part 2 through each seat bracket 6, 7 and the reinforcing member 12, thus by preventing deformation of the side sill 3 or the like, safety of a car body side part structure is improved.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a vehicle body side structure applied to automobiles, etc., and in particular to a vehicle in which reinforcement measures are taken for side sills and seat cushions near the bottom of the door. Regarding the side structure of the vehicle body.

(Prior Art) Generally, a tunnel portion for passing a shaft is formed in the center of a floor panel of an automobile.

Furthermore, side sills are provided one step higher on both side edges of the floor panel in the vehicle width direction, and the lower end of the door is supported by the side sills.

In addition, seat brackets are provided at each of the left and right corner portions in the vehicle width direction formed by the floor panel, the tunnel portion, and the side sills, and the lower portions of the seat cushion on both sides in the vehicle width direction are supported by these seat brackets. There is. Note that the seats of passenger cars are generally movable in the longitudinal direction of the vehicle body, so the seat cushion is movably supported via a slider and guide member on a pair of left and right seat brackets arranged on both sides of the seat cushion. has been done.

Here, the force acting on the door from the outside is stopped by the side sill, and for this reason, the structural strength of the side sill has conventionally been provided by various means. For example, reinforcements are inserted into the side sills, or the side sills and the center pillar are fixed together as disclosed in Japanese Utility Model Application No. 63-59783.

(Problem to be Solved by the Invention) Incidentally, in a collision accident where the side door of an automobile is hit, a so-called side collision, etc., a large impact load is applied to the door from the outside, and the side sill is pushed into the interior of the vehicle. . In this case, the impact load applied to the door due to the vertical positional relationship between the door and the side sill acts intensively on the upper end of the side sill, and also because the lower end of the side sill is connected to the floor panel, the side sill is As the door deforms inward, the upper end of the side sill rotates around the lower end, collapsing into the interior of the vehicle, and as a result, the support for the door comes off from the side sill and the door may enter the interior of the vehicle.

Additionally, if the side sill deforms and rotates toward the inside of the vehicle, the seat cushion located on the side of the side sill may be compressed from the vehicle width direction, causing deformation, etc. .

Therefore, in order to prevent the upper end of the side sill from intruding into the interior of the vehicle, the upper end of this side sill is reinforced from the inside of the vehicle, and the influence of deformation of the side sill on the seat cushion is avoided. However, the conventional reinforcement measures described above may not always be sufficient.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a vehicle body side structure that can restrict the deformation and rotation of the side sill in the event of a side collision, and at the same time prevent the deformation of the seat cushion. purpose.

(Means for Solving the Problems) The present invention provides seat cushions that are provided in the side sills provided on both sides of the vehicle body and the tunnel portions formed on the floor in the vehicle interior, and that support seat cushions and are spaced apart from each other in the vehicle width direction. The vehicle is characterized by comprising: a pair of seat brackets forming separated and opposing walls; and a reinforcing member provided on the seat cushion along the vehicle width direction and facing close to the walls of the pair of seat brackets. shall be.

(Function) According to the above-described configuration, the reinforcing member is provided in the seat cushion along the vehicle width direction, and this reinforcing member connects the pair of seats forming the wall portions that face each other at a distance in the vehicle width direction. Because it faces the bracket in close proximity, even if a large impact load is applied from the outside to the door or center pillar due to a side collision, and a pressing force is applied to the side sill toward the inside of the vehicle, the pressing force will be applied to the side sill, The force is sequentially transmitted to the wall of the side sill-side seat bracket, the reinforcing member, and the wall of the tunnel-side seat bracket, and is stopped by the tunnel.

Therefore, the side sill is reinforced by the tunnel portion, and deformation such as bending and rotation toward the inside of the vehicle are restricted. Furthermore, since the seat cushion is reinforced by the reinforcing member attached to it, it is possible to avoid pressure deformation in the vehicle width direction.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

This example concerns the side structure of the vehicle body in the passenger seat area of a four-door type passenger car. Fig. 1 is a perspective view schematically showing the floor configuration below the seat, and Fig. 2 shows the seat installed state. FIG. 3 is a side view showing the same, and FIG. 3 is a rear view thereof.

The present invention basically consists of side sills 3 provided on both sides of the vehicle body and a tunnel portion 2 formed on the floor 1 in the vehicle interior.
Wall portions 6a are provided on each side, support the seat cushion 9, and face each other at intervals in the vehicle width direction.
, 7a, and a reinforcing member 12 provided on the seat cushion 9 along the vehicle width direction and facing closely to the walls 6a, 7a of the pair of seat brackets 6.7. It is composed of:

As shown in FIGS. 1 to 3, in the center of the floor panel 1,
The tunnel portion 2 is formed in a bulging manner. Further, side sills 3 are provided one step higher on both side edges in the vehicle width direction of the floor panel 1, and the lower end portions of the doors 4 are supported by the side sills 3. Note that on the lower surface of the floor panel 1, a floor side frame 5 having a substantially U-shaped cross section along the front-rear direction and located approximately midway between the tunnel portion 2 and the side sill 3 is provided by welding the flange portions 5a on both sides thereof. It is integrated.

In addition, a pair of left and right corner portions a in the vehicle width direction formed by the floor panel 1, the tunnel portion 2, and the side sill 3
, b are provided with seat brackets 6.7 that protrude one step higher than the floor panel 1, respectively. The lower portions of the seat cushion 9 constituting the seat 8 on both sides in the vehicle width direction are supported by the seat brackets 6 7 .

Note that the seat cushion 9 is movable in the longitudinal direction of the vehicle body. That is, the seat cushion 9 is movably supported by a pair of seat brackets 6.7 arranged on both sides of the seat cushion 9 via a slider 10 and a guide member 11.

In this vehicle, a reinforcing member 12 extending in the vehicle width direction is provided integrally with a seat pan 13 at the lower part of the seat cushion 9. Both ends of this reinforcing member 12 are wall portions 6a rising from the floor panel 1 of the pair of left and right seat brackets 6°7.

It is disposed close to and opposite to 7a from the vehicle width direction.

That is, a reinforcing member 12 extending along the vehicle width direction is provided at the lower part of the seat cushion 9 so as to move in the longitudinal direction of the vehicle body together with the seat cushion.

The length of each seat bracket 6.7 along the longitudinal direction of the vehicle body is set to such a length that the reinforcing member 12 can face the reinforcing member 12 over the entire movement range along the longitudinal direction of the vehicle body.

Further, the seat bracket 7 on the side sill 3 side has a flange portion 7b that extends long toward the inside of the vehicle, and this flange portion 7b is connected to the flange portion 5 of the floor side frame 5.
It is fixed to the floor panel 1 by welding or the like in a position overlapping with the panel a.

In the figure, 14 is a center pillar, and 15 is a cross member that supports the front portion of the seat.

According to such a configuration, a reinforcing member 12 is provided at the lower part of the seat cushion 9 along the vehicle width direction, and this reinforcing member 12 is attached to a pair of left and right seat brackets 6 in the vehicle width direction.
7 and facing the walls 6a and 7a, a large impact load is applied from the outside to the door 4 and the center pillar 14 due to a side collision, etc., and a pressing force is applied to the side sill 3 toward the inside of the vehicle. Also, the pressing force is the side sill 3. The force is sequentially transmitted to the wall portion 7a of the side sill side seat bracket 7, the reinforcing member 12, and the wall portion 6a of the tunnel portion side seat bracket 6, and is stopped by the tunnel portion 2.

Therefore, the side sill 3 is reinforced and supported by the tunnel portion 2, and deformation such as bending, rotation toward the inside of the vehicle, etc. are restricted. Further, since the seat cushion 9 is reinforced by the reinforcing member 12 attached thereto, pressure deformation in the vehicle width direction is avoided.

Further, according to the configuration of the embodiment, each seat bracket 6.7
The length along the longitudinal direction of the vehicle body is set to such a length that the reinforcing member 12 can face the entire movement range along the longitudinal direction of the vehicle body, and in particular, the seat bracket 7 on the side sill 3 side is The flange portion 7b is fixed to the floor panel 1 in such a manner that it overlaps with the flange portion 5a of the floor side frame 5, so that the seat brackets 6.7 are attached to the floor panel 1. As the rigidity of the floor panel 1 is improved, measures to prevent deformation and twisting of the floor panel 1 are further strengthened, and safety can be further improved.

That is, according to this embodiment, even if a large impact load is applied from the outside to the door 4 or the center pillar 14 due to a side collision or the like, the load is stopped by the tunnel portion 2, thereby preventing deformation such as bending of the side sill 3. Rotation toward the inside of the vehicle can be restricted, and compression deformation of the seat cushion 9 along the vehicle width direction can also be prevented.

Furthermore, the rigidity of the floor panel 1 can be improved, and measures to prevent deformation and twisting of the floor panel 1 can also be taken.

In the above embodiments, the description has been given of the passenger seat, but it goes without saying that the invention can also be applied to the driver's seat and other seats. Furthermore, although the seat was designed to be movable in the longitudinal direction of the vehicle body, it goes without saying that it can also be implemented with a fixed seat. Further, in the embodiment described above, the flange portion 7b of the seat bracket 7 is fixed to the floor panel 1 in an arrangement where it overlaps the flange portion 5a of the floor side frame 5.
This is a preferred embodiment that can improve the rigidity of the floor panel 1 and further strengthen measures to prevent deformation, twisting, etc., and the present invention is not particularly limited to such a configuration.

(Effects of the Invention) As described above, according to the vehicle body side structure of the present invention, the reinforcing member provided on the seat cushion along the vehicle width direction is attached to the wall portions of the pair of left and right seat brackets in the vehicle width direction. By arranging them in close proximity to each other, the tunnel section of the floor panel can absorb large impact loads from the doors and center pillar in the event of a side collision, thereby preventing deformation such as bending of the side sills or damage to the inside of the vehicle. The rotation of the seat cushion can be restricted, and the seat cushion can also be prevented from being compressed and deformed along the vehicle width direction, thereby providing excellent effects that can greatly contribute to improving the safety of the vehicle body structure.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of the floor structure below the seat showing an embodiment of the vehicle body side structure according to the present invention, Fig. 2 is a side view showing the seat installed state, and Fig. 3 is a rear view thereof. be.

Claims (1)

[Claims] A pair of seats that are provided in the side sills provided on both sides of the vehicle body and in the tunnel portion formed on the floor of the vehicle interior, and that support a seat cushion and form walls that face each other at a distance in the vehicle width direction. A vehicle body side structure for a vehicle, comprising: a bracket; and a reinforcing member that is provided on the seat cushion along the vehicle width direction and faces closely to walls of the pair of seat brackets.