JP6760697B2 - Vehicle structure - Google Patents

Description

The present invention relates to a vehicle structure capable of suitably protecting occupants at the time of a side collision of the vehicle.

As a vehicle, there is a layout in which the pillar portion of the vehicle and the occupant overlap each other in the side view. In such a vehicle, the pillar portion and the occupant may collide with each other at the time of a side collision of the vehicle.
Therefore, conventionally, there is a vehicle structure as described in Patent Document 1.
In the vehicle structure described in the same document, when a side collision of the vehicle occurs, the lower portion of the pillar portion is deformed more than the upper portion to enter the inside of the vehicle. This makes it possible to prevent the upper part of the pillar portion from strongly colliding with the occupant's head or shoulder.

However, in the above-mentioned prior art, there is room for improvement as described below.

That is, there is a so-called pole side collision as a mode of the side collision of the vehicle. This pole side collision is a mode in which the vehicle skids and the side surface of the vehicle collides with a pole-shaped obstacle (pole barrier) such as a utility pole, a roadside tree, or a traffic light. In such a pole side collision, a collision load is input not only in the lower part of the pillar part but also in a substantially entire length range from the lower part to the upper part of the pillar part, and the entire pillar part is deformed so as to enter the vehicle interior.
On the other hand, it is difficult to prevent such a phenomenon with the vehicle structure described in Patent Document 1. Further, in the pole side collision, when a vehicle in a skid state collides with the pole barrier, a phenomenon that the occupant is displaced outward in the vehicle width direction due to inertia also occurs. Therefore, conventionally, when a pole side collision occurs, the occupant protection performance is lacking. At the time of a pole side collision, as a result of a strong collision between the occupant's shoulder and the pillar, the occupant's chest is strongly compressed, leading to a phenomenon in which the chest injury value increases.

As a means for preventing or suppressing the above-mentioned problems, for example, a seat side airbag or a curtain shield airbag can be considered. However, in the case of a compact car in which the gap between the occupant and the pillar portion is narrow, it is difficult to effectively deploy the airbag with a sufficient size in such a gap.

Japanese Unexamined Patent Publication No. 9-254729

The present invention has been conceived under the above-mentioned circumstances, and a vehicle structure capable of appropriately improving occupant protection performance at the time of a side collision of a vehicle such as a pole side collision by a simple configuration. The challenge is to provide.

In order to solve the above problems, the following technical measures are taken in the present invention.

The vehicle structure provided by the present invention is a vehicle structure having a layout in which the pillar portion of the vehicle and the shoulder portion of the occupant overlap each other in the side view of the vehicle, and is located on the vehicle interior side of the inner panel constituting the pillar portion. Of the located inner surface portions, at least the region that overlaps with the occupant's shoulder portion is an inclined surface that faces diagonally forward and inward, and the pillar portion is on the inward side in the vehicle width direction with respect to the inclined surface. A pillar trim is attached that is located to cover the inclined surface and has a non-inclined surface-like wall portion facing inward in the vehicle width direction, and the side collision of the vehicle causes the shoulder of the occupant. When the portion collides with the wall portion of the pillar trim, the wall portion is compressed and deformed so as to overlap the inclined surface of the inner panel, and can be inclined so as to face diagonally forward and inward . It is characterized by that.

According to such a configuration, when the shoulder of the occupant collides with the pillar portion at the time of a side collision of the vehicle, a part of the impact force at that time is caused by the action of the inclined surface of the pillar portion. It becomes a component force in the front-rear direction of the vehicle to be moved to the front of the vehicle, and the force input from the inclined surface to the shoulder portion is reduced accordingly. Therefore, the mode of the side collision of the vehicle is the pole side collision, and even when the shoulder portion and the pillar portion of the occupant collide with each other, the impact at that time is appropriately mitigated. As a result, it is possible to appropriately prevent or suppress the occupant's chest from being strongly compressed due to the large load applied to the shoulder and increasing the obstacle value, and to obtain excellent occupant protection performance. It will be possible.
In the present invention, since the structure is as simple as providing an inclined surface on the pillar portion, the production thereof is easy and the production cost can be reduced. In addition, there is an advantage that it can be suitably used for a small car in which it is difficult to use an airbag.

Other features and advantages of the present invention will become more apparent from the following description of embodiments of the invention with reference to the accompanying drawings.

(A) is a main part plan sectional view showing an example of the vehicle structure which concerns on this invention, and (b) is a main part plan sectional view which shows the action. It is a partial omission main part perspective view of the vehicle structure shown in FIG.

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

The vehicle structure shown in FIG. 1A is a layout in which the pillar portion 1 of the vehicle and the occupant 8 seated on the vehicle seat 2 overlap each other in the side view of the vehicle. When the vehicle seat 2 is a front-rear sliding type, even if there is a position where the pillar portion 1 and the occupant 8 do not overlap, the pillar portion 1 and the occupant 8 can be moved by sliding the vehicle seat 2 to any position. If they overlap, the layout as a prerequisite of the present invention is satisfied.

The pillar portion 1 is, for example, a B pillar portion, which is formed by joining the reinforce 12 between the inner panel 10 and the outer panel 11 so as to appropriately sandwich the reinforce 12, and is located on the side of the vehicle and has a vertical height. It extends in the vertical direction. In FIG. 1, reference numerals 9a and 9b are front side doors and rear side doors. A resin pillar trim 3 that covers the inner surface portion 10a (inner surface portion of the inner panel 10) located on the vehicle interior side is attached to the pillar portion 1.

An inclined surface 10b facing diagonally forward and inward is formed on the inner surface portion 10a of the pillar portion 1. Preferably, the inclined surface 10b is formed over the entire width of the inner surface portion 10a in the front-rear direction of the vehicle. On the other hand, in the vertical height direction, the inclined surface 10b is provided in a height range substantially equal to the height of the shoulder portion 80 when the occupant 8 has a standard physique, and the upper body of the occupant 8 is in the vehicle width direction. The height is such that the shoulder portion 80 can come into contact with the inclined surface 10b when displaced outward (see also FIG. 2). More preferably, in the height range where the inclined surface 10b is formed, the occupant 8 can be expected in the vehicle width direction regardless of whether the occupant 8 has a small physique or a large physique that can be assumed in the normal range. When displaced, the shoulder portion 80 is set to a height range that can be brought into contact with the inclined surface 10b. Unlike the inner panel 10, the pillar trim 3 (omitted in FIG. 2) is not formed to have an inclined surface.

Next, the operation of the vehicle structure described above will be described.

First, as a side collision of the vehicle, when the vehicle skids and a pole side collision occurs in which the side surface portion of the vehicle collides with the pole barrier PB as shown in FIG. 1 (b), substantially the entire pillar portion 1 is formed. Entering the passenger compartment side. Further, the occupant 8 is displaced outward in the vehicle width direction due to inertia. Therefore, the shoulder portion 80 of the occupant 8 collides with the inclined surface 10b, and at this time, a force F for moving the shoulder portion 80 of the occupant 8 to the front of the vehicle is generated. Although the shoulder portion 80 and the inclined surface 10b collide with each other via the pillar trim 3, the pillar trim 3 is made of resin and is easily compressed and deformed to have an inclined shape substantially similar to that of the inclined surface 10b. The force F is properly generated. Then, the impact (load input to the shoulder portion 80 (shoulder joint portion)) at the time of collision between the inclined surface 10b and the shoulder portion 80 of the occupant 8 is reduced by the amount of such force F generated.

Unlike the present embodiment, when the load input to the shoulder portion 80 of the occupant 8 is large, the chest of the occupant 8 is strongly compressed and the injury value becomes large. On the other hand, according to the present embodiment, since the load input to the shoulder portion 80 can be reduced, the injury value of the occupant 8 can be reduced and the occupant protection performance can be improved. In the present embodiment, since the simple configuration is adopted in which the inner surface portion 10a of the pillar portion 1 is formed on the inclined surface 10b, the manufacturing cost can be reduced, and the shoulder portion 80 and the pillar portion of the occupant 8 can be reduced. It can be suitably used for a small car in which it is difficult to use an airbag because the gap between it and 1 is narrow.

The present invention is not limited to the contents of the above-described embodiments. The specific configuration of each part of the vehicle structure according to the present invention can be variously redesigned within the scope intended by the present invention.

The inclined surface referred to in the present invention is not limited to a flat surface, and may be an inclined surface having a curved surface. Further, as in the above-described embodiment, the inclined surface is preferably formed over the entire width of the inner surface portion of the pillar portion in the front-rear direction of the vehicle, but is not limited to this, and for example, the width is less than the entire width of the inner surface portion. It can also be a formed configuration. It suffices that it is formed at least in an area that overlaps with the occupant's shoulder (shoulder joint).

Pila over portion is not limited to B-pillar portion, it may be a C-pillar section.

1 Pillar part 10a Inner surface part 10b Inclined surface 2 Vehicle seat 8 Crew 80 Shoulder part

Claims (1)

The vehicle structure has a layout in which the pillars of the vehicle and the shoulders of the occupants overlap when viewed from the side of the vehicle.
Of the inner surface portion of the inner panel constituting the pillar portion located on the vehicle interior side, at least the region overlapping with the shoulder portion of the occupant is an inclined surface facing diagonally forward and inward .
A pillar trim is attached to the pillar portion, which is located on the inward side in the vehicle width direction with respect to the inclined surface to cover the inclined surface and has a non-inclined surface-shaped wall portion facing inward in the vehicle width direction. And
When the shoulder portion of the occupant collides with the wall portion of the pillar trim due to the side collision of the vehicle, the wall portion is compressed and deformed so as to overlap the inclined surface of the inner panel. A vehicle structure characterized in that it can be tilted so as to face diagonally forward and inward .

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