JP2013220722A - Vehicle body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle body structure capable of favorably suppressing the deformation of a vehicle body.SOLUTION: In a vehicle body structure 10 of a vehicle 100, an inclined surface 61 inclined in a vehicle rear side toward the outside in a vehicle width direction from the inside in the vehicle width direction is provided to a part on the outside in the vehicle width direction of a suspension tower 6. In this way, when the suspension tower 6 collides with an obstacle O at a minute lap collision, a load F1 acting on the suspension tower 6 from the front side is made a load to head to a vehicle rear side and the inside in the vehicle width direction. The load F1 by the minute lap collision acts so as to keep the vehicle 100 away from the obstacle O toward the inside in the vehicle width direction, thereby suppressing the deformation of the vehicle body.

Description

  The present invention relates to a vehicle body structure.

  Conventionally, in a vehicle body structure, various devices have been made to suppress deformation of the vehicle body due to a collision. For example, in the front structure of a vehicle body described in Japanese Patent Application Laid-Open No. 2006-193023, a suspension tower for supporting a shock absorber is provided in front of the door opening. A front pillar and a dash cross member, which are part of the skeleton member of the vehicle body, are arranged behind the suspension member. Further, a front side member, which is a part of the skeleton member of the vehicle body, extends from the front to the rear of the suspension member on the inner side in the vehicle width direction than the suspension member. These skeleton members and the suspension member are connected via a suspension tower support member or the like. When the vehicle collides with an obstacle from the front side and a load acts on the suspension tower from the front, the load is distributed to the skeleton member by the suspension tower support member or the like, thereby deforming the vehicle body near the door opening. Is suppressed.

JP 2006-193023 A

  By the way, when the vehicle collides with an obstacle from the front side, a so-called minute lap collision may occur in which the vehicle and the obstacle collide at a portion outside the front side member in the vehicle width direction. In the vehicle body structure as described above, an obstacle may collide with the suspension tower on the outer side in the vehicle width direction than the front side member at the time of a minute lap collision. When the obstacle collides with the suspension tower, it becomes impossible to directly absorb the impact by the front side member, and accordingly, it becomes difficult to suppress deformation around the door opening. Therefore, in the vehicle body structure as described above, there is room for improvement in order to suitably suppress deformation of the vehicle body even at the time of a minute lap collision.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a vehicle body structure that can suitably suppress deformation of the vehicle body.

  The vehicle body structure according to the present invention is a vehicle body structure of a vehicle, and includes a suspension tower disposed on the outer side in the vehicle width direction than the front side member. An inclined surface that is inclined rearward of the vehicle toward the outside in the vehicle width direction is provided.

  In the vehicle body structure according to the present invention, an inclined surface that is inclined rearward of the vehicle from the inner side in the vehicle width direction to the outer side in the vehicle width direction is provided in a portion on the outer side in the vehicle width direction of the suspension tower. As a result, when an obstacle collides with the suspension tower during a minute lap collision, a load directed toward the rear of the vehicle and inward in the vehicle width acts on the suspension tower. As described above, in the vehicle body structure according to the present invention, the load caused by the minute wrap collision acts to move the vehicle and the obstacle away from each other toward the inner side in the vehicle width direction, so that deformation of the vehicle body can be suitably suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the vehicle body structure which can suppress a deformation | transformation of a vehicle body suitably.

1 is a schematic plan view showing a vehicle having a vehicle body structure according to an embodiment of the present invention. FIG. 2 is a schematic plan view showing a state in which the vehicle in FIG. 1 collides with an obstacle with a minute lap. It is a schematic plan view which shows the vehicle which has the conventional vehicle body structure. FIG. 4 is a schematic plan view showing a state in which the vehicle in FIG. 3 collides with an obstacle with a minute lap.

  Hereinafter, a vehicle body structure according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or an equivalent element, and the overlapping description is abbreviate | omitted.

  FIG. 1 is a schematic plan view showing a vehicle having a vehicle body structure according to an embodiment of the present invention. FIG. 1 shows only one side (left side as viewed from the driver) in the vehicle width direction of the front portion of the vehicle, and the other side has a substantially similar structure (also in FIGS. 2 to 4). The same). As shown in FIG. 1, the vehicle body structure 10 is applied to a vehicle 100 such as a passenger car. The vehicle 100 includes a bumper reinforcement (hereinafter referred to as bumper R / F) 2, a front side member (hereinafter referred to as Fr side member) 3, a cowl 4, a front pillar (hereinafter referred to as A pillar) 5, and a suspension tower 6. ing.

  The bumper R / F 2 is a member that absorbs an impact during a frontal collision or the like, and is provided at the front end of the vehicle 100. The bumper R / F2 extends along the vehicle width direction.

  The Fr side member 3 is one of the members constituting the skeleton of the vehicle 100 and is connected to the rear surface of the bumper R / F2. The Fr side member 3 extends rearward from the rear surface of the bumper R / F2 and is connected to a dash panel (not shown). The Fr side member 3 improves the strength and rigidity of the vehicle body, and absorbs an impact that could not be absorbed by the bumper R / F2 in a frontal collision or the like. The Fr side member 3 has a predetermined deformation load set based on experiments, simulations, and the like. When a load equal to or greater than the deformation load is applied during a collision, the Fr side member 3 is deformed and absorbs the load.

  The cowl 4 supports the windshield from below and is used as an air supply path to the air conditioner. The cowl 4 is disposed at the upper portion of the above-described dash panel. The cowl 4 extends along the vehicle width direction, and a cabin (occupant compartment) C is located behind the cowl 4.

  The A pillar 5 is one of the members forming the skeleton of the vehicle 100 and is connected to the end of the cowl 4. The A-pillar 5 extends along the vehicle height direction and is provided in the vicinity of the door opening of the cabin C.

  The suspension tower 6 supports the upper side of the shock absorber S and covers the shock absorber S, and is provided outside the Fr side member 3 in the vehicle width direction. The suspension tower 6 is provided with an inclined surface 61 that is inclined rearward from the inner side in the vehicle width direction toward the outer side in the vehicle width direction. Specifically, the suspension tower 6 extends along the vehicle height direction, and the upper portion of the suspension tower 6 has, for example, a hollow triangular shape when viewed in plan. The hollow triangular shape may be a substantially hollow triangular shape. Of the surfaces constituting the hollow triangular cross section, the surface covering the shock absorber S from the outside is connected linearly between the end of the cowl 4 and the outer surface of the Fr side member 3 when viewed in plan. The inclined surface 61 is inclined with respect to the vehicle width direction. Here, the angle α formed by the inclined surface 61 with respect to the vehicle width direction is preferably 45 ° or more. Further, when the angle α is within an angle formed by the line connecting the front end portion of the Fr side member and the end portion of the cowl 4 with respect to the vehicle width direction, the distance between the bumper R / F2 and the cowl 4 is increased. Without this, the suspension tower 6 can be suitably provided.

  Next, the operation of the vehicle 100 having the vehicle body structure 10 will be described.

  As shown in FIG. 1, when the vehicle 100 and an obstacle O such as a utility pole cause a micro lap collision, the obstacle O is, for example, near the end of one side of the bumper R / F2 with respect to the vehicle 100. Approach from the front to touch.

  FIG. 2 is a schematic plan view showing a state where the vehicle of FIG. As shown in FIG. 2, the obstacle O passes through the bumper R / F2 and collides with the inclined surface 61 of the suspension tower 6. At this time, in the vehicle body structure 10 according to the present embodiment, the inclined surface 61 is inclined rearward of the vehicle from the inner side in the vehicle width direction to the outer side in the vehicle width direction. A load F1 directed inward in the direction acts. That is, the load F1 due to the minute wrap collision acts on the vehicle 100 so as to keep the vehicle 100 and the obstacle O away from each other toward the inner side in the vehicle width direction. For this reason, it is suppressed that the obstruction O approachs into the cabin C, and the deformation | transformation of the vehicle body around a door opening part is suppressed suitably.

  At this time, when the angle α is 45 ° or more, among the components of the load F1, the component inward in the vehicle width direction is greater than or equal to the component toward the rear of the vehicle, so that deformation of the vehicle body is suitably suppressed.

  As described above, in the vehicle body structure 10 according to the present embodiment, the inclined surface 61 that is inclined rearward of the vehicle from the vehicle width direction inner side to the vehicle width direction outer side is provided in the vehicle width direction outer side portion of the suspension tower 6. When the obstacle O and the suspension tower 6 collide at the time of the micro lap collision, a load F1 directed toward the rear of the vehicle and inward in the vehicle width acts on the suspension tower 6.

  Here, FIG. 3 is a schematic plan view showing a vehicle having a conventional vehicle body structure, and FIG. 4 is a schematic plan view showing a state where the vehicle of FIG. As shown in FIG. 3, in the vehicle 200 having the conventional vehicle body structure 20, the suspension tower 7 has a front surface 71 that covers the shock absorber S from the front side, and a side surface 72 that covers the vehicle width direction from the outside. The front surface 71 is provided substantially parallel to the vehicle width direction, and the side surface 72 is provided substantially perpendicular to the vehicle width direction.

  As shown in FIG. 4, when such a vehicle 200 causes a micro lap collision, the obstacle O passes through the bumper R / F 2 and collides with the front surface 71 of the suspension tower 7. Since the front surface 71 is substantially parallel to the vehicle width direction, a load F2 directed toward the rear of the vehicle acts on the vehicle 200. At this time, since the impact cannot be directly absorbed by the Fr side member 3, the A pillar 5 defining the vicinity of the door opening of the cabin C is deformed, and the obstacle O enters the cabin C.

  On the other hand, in the vehicle body structure 10 according to the present embodiment, as described above, the load F1 due to the minute wrap collision acts to keep the vehicle 100 and the obstacle O away from each other toward the inner side in the vehicle width direction (FIG. 2), the obstacle O is prevented from entering the cabin C, and the deformation of the vehicle body can be suitably suppressed.

  As mentioned above, although the vehicle body structure which concerns on this invention was demonstrated, this invention is not limited to the said embodiment. For example, in the above embodiment, the surface that covers the suspension tower 6 from the outside in the vehicle width direction is entirely the inclined surface 61, but a part of the surface that covers the suspension tower 6 from the outside in the vehicle width direction is the inclined surface. May be. In this case, the length (width) in the vehicle width direction in which the inclined surface is formed is preferably half or more of the length (width) of the suspension tower 6 in the vehicle width direction. If it carries out like this, the load component which goes to a vehicle width direction inner side at the time of a micro lap collision can be ensured enough. Moreover, in the said embodiment, although the inclined surface 61 is exhibiting substantially planar shape, you may exhibit the curved surface shape. In short, when the obstacle O collides with the suspension tower 6, it is possible to generate a load that acts to move the vehicle and the obstacle toward the inner side in the vehicle width direction and to suppress deformation around the door opening. In addition, it is only necessary to provide an inclined surface that is inclined rearward of the vehicle from the inner side in the vehicle width direction toward the outer side in the vehicle width direction on the outer side in the vehicle width direction of the suspension tower 6.

  DESCRIPTION OF SYMBOLS 3 ... Front side member, 6 ... Suspension tower, 10 ... Body structure, 61 ... Inclined surface, 100 ... Vehicle.

Claims (1)

A vehicle body structure,
It has a suspension tower that is located outside the front side member in the vehicle width direction.
An inclined surface that is inclined rearward of the vehicle from the inner side in the vehicle width direction to the outer side in the vehicle width direction is provided in the vehicle width direction outer side portion of the suspension tower.
Body structure.

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