JP2944935B2 - Apron member of vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle apron member.

[0002]

2. Description of the Related Art In general, in a vehicle, longitudinal ends of a cowl extending in a vehicle width direction along a lower edge of a front window glass are, as described in, for example, Japanese Utility Model Laid-Open No. 1-85190, front and rear. The rear end portion of the apron member extending in the direction is connected to the apron member so as to reinforce the apron covering both sides in the vehicle width direction of the engine room.

[0003] The above-mentioned apron member is formed, for example, by pressing a sheet metal member and projecting a plurality of ribs on the side surface thereof, thereby increasing the rigidity of the apron member itself.

[0004]

In the apron member described above, it is necessary to ensure sufficient rigidity of the member itself. However, an impact load is applied to the front end of the apron member due to, for example, a front collision of a vehicle. When inputting, it is necessary to buckle the apron member to absorb the impact load. However, in the apron member disclosed in the above publication, the rigidity of the apron member is secured by forming the rib. Even if it is possible, there may be a problem that the apron member cannot be smoothly buckled when an impact load is input to the front end of the apron member due to the rigidity secured by the formation of the rib.

The present invention has been developed in view of the above circumstances. It is an object of the present invention to sufficiently secure the rigidity of the apron member itself in a so-called static state in which no longitudinal impact is applied. It is still another object of the present invention to provide an apron member that can buckle smoothly when a predetermined impact load is input, and can efficiently absorb the impact load.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a vertically extending bead 7e is formed on a wall surface of the apron member 3 and has a substantially band shape in a front view . On the wall, the apron member 3
The apron member 3
In order to allow buckling of the bead, the bead 7e is moved up and down.
And both ends are above and below the bead 7e.
In the same direction as the direction in which the beads 7e protrude.
The bulging portion 8 having the upper bulging portion 8a bulging in a substantially mountain shape in cross section is protruded.

[0007]

According to the first aspect of the present invention,
A bead 7 protruding from the wall of the apron member 3
e, and both ends thereof extend vertically above the bead 7e and extend in the same direction as the direction in which the bead 7e protrudes.
The bulging portion 8 having the upper bulging portion 8a bulging substantially in the shape of a cross section in the direction is formed, so that the bent wall surface of the apron member 3 itself increases accordingly, so that the impact in the front-rear direction is reduced. The rigidity of the apron member 3 itself in a so-called static state where the apron member 3 is not applied is further increased. Thus, the apron member 3 buckles via the bulging portion 8 so that impact energy can be efficiently absorbed.

[0008]

FIG. 1 schematically shows a front body at a rear corner portion of an engine room. FIG. 1 shows a front body in a vehicle width direction along a lower edge of a front window W. A cowl having a box-shaped cross section is disposed, and both ends in the length direction of the cowl 1 are connected to middle portions in the length direction of the inner panel 2 constituting the A pillar.

An apron member 3 extending in the front-rear direction is disposed inward of the engine room E in the vehicle width direction from a joint portion between the cowl 1 and the inner panel 2. A rear end of the apron member 3 is The cowl 1 and the inner panel 2
And is fixed by spot welding to a joint portion with the above.

The present invention relates to the apron member 3. The apron member 3 will now be described in detail.

As is known, the apron member 3 is disposed in the front-rear direction along the inside of an apron (not shown) covering both sides of the engine room E in the vehicle width direction, and reinforces the apron. And basically, the vertical wall 4 and
A lower wall 5 bent inward from the lower end of the vertical wall 4 in the vehicle width direction, and a flange 6 bent downward from the tip of the lower wall 5 are provided in the longitudinal direction of the vertical wall 4 and the lower wall 5. A connecting piece 30 is integrally formed at one end, and the connecting piece 30 is connected to a connecting portion between the cowl 1 and the inner panel 2.

On the vertical wall 4, five first to fifth beads 7a, 7b,
7c, 7d, 7e, and one sixth
The beads 7f project inward at predetermined intervals from each other and protrude inward in the vehicle width direction, and the beads 7a to 7f increase the rigidity of the apron member itself.

The lower wall 5 of the apron member 3
A support member 10 for receiving an upper end portion of a suspension member (not shown) is fixed to an intermediate portion in the length direction.

In the apron member 3 having the above configuration, the vertical wall 4 and the lower wall 5 traverse the bead 7e in the vertical direction, and both ends thereof extend in the vertical direction beyond the bead 7e. The bulging portion 8 that allows the apron member 3 to buckle with the input of the impact load in the direction is protruded.

That is, in the embodiment shown in the drawings, the support member 1 on the vertical wall 4 to the lower wall 5 and the flange 6 is provided.
A bulging portion 8 protruding in the vertical direction across the fifth bead 7e is provided at a position rearward of the mounting portion of the No. 0.
Specifically, the upper bulging portion 8a that bulges in a substantially mountain-shaped cross section in the same direction as the direction in which the fifth bead 7e protrudes is crossed vertically from the upper end of the vertical wall 4 to the widthwise center of the fifth bead 7e. The lower wall 5 and the flange 6 extend downward to the lower end of the vertical wall 4 and extend to the lower end edge of the flange 6 at the lower end of the upper bulging portion 8a. The bulging portions 8b are formed, and these upper bulging portions 8a are formed.
And the lower swelling portion 8b constitutes the swelling portion 8, and the apron member 3 is connected to the apron member 3 through the swelling portion 8 in response to input of a predetermined or more impact load on the apron member 3 in the front-rear direction.
Is trying to buckle.

Further, in the embodiment shown in the figure, a bulging portion 9 having a semicircular cross section extending substantially vertically from the upper end of the vertical wall 4 to the lower end of the flange 6 is also formed at the front end of the apron member 3. With the input of a predetermined or more impact load on the apron member 3 in the front-rear direction, the bulging portion 8
At the same time, the apron member 3 is smoothly buckled by the bulging portion 9.

According to the apron member having the above-described configuration, the bent wall surface of the apron member 3 itself increases as the bulging portions 8 and 9 are formed with respect to the apron member 3. 4, the rigidity of the apron member itself in a so-called static state where no impact in the front-rear direction is applied is further increased as compared with the apron member in which only the ribs are formed on the apron member.

On the other hand, for example, at the time of a frontal collision of the vehicle,
When an impact load equal to or more than a predetermined value is input to the front end of the apron member 3, the apron member 3 buckles through the bulging portions 8, 9, and the apron member 3 efficiently reduces the impact energy. It can be well absorbed.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an attached state of an apron member according to the present invention.

FIG. 2 is a perspective view of an apron member according to the present invention.

FIG. 3 is an enlarged sectional view taken along line XX in FIG. 2;

FIG. 4 is an enlarged sectional view taken along line YY in FIG. 2;

FIG. 5 is an enlarged sectional view taken along the line ZZ in FIG. 2;

[Explanation of symbols]

 1 cowl 3 apron member 7e bead 8 bulge

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B62D 25/08

Claims (1)

(57) [Claims] An apron member of a vehicle extending forward from a longitudinal end of a cowl (1), and extending in a vertical direction in a substantially band shape in a front view on a wall surface of the apron member (3). a bead (7e) while projecting, the wall surface, the Epstein
For inputting the impact load in the front-rear direction to the Ron member (3)
With this, the buckling of the apron member (3) is allowed.
For this purpose, both sides of the bead (7e) are traversed vertically.
The end extends vertically above the bead (7e), and
The cross section has a substantially mountain shape in the same direction as the projecting direction of the bead (7e).
An apron member for a vehicle, wherein a protruding portion (8) having an upper protruding portion (8a) protruding is provided .