JP3480292B2 - Car body structure - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an automobile body structure.

[0002]

2. Description of the Related Art In an automobile having a monocoque body,
The hood ridge reinforcement is joined to the hood ridge panel to form a closed cross section, and the rear end of the hood ridge reinforcement is joined to the body side outer panel forming the lower half of the front pillar. A hood hinge is attached to the rear end of the upper wall of the hood ridge reinforcement, while a rear end of a fender panel is attached to the body side outer panel near the hood ridge reinforcement connection. This similar structure is disclosed in, for example, Japanese Patent Laid-Open No. 6-
It is disclosed in Japanese Patent No. 191441.

[0003]

However, in this structure, the fender panel is assembled with the body side outer panel as a reference, but the front hood is directly attached to another hood ridge reinforcement, which is the assembly reference. Since they are arranged on different members, the assembling accuracy of the front hood with respect to the fender panel was not always sufficient.

Further, since only the rear end portion of the hood ridge reinforcement is constructed so as to be connected across the body side outer panel and the cowl box, the connecting rigidity between the front pillar and the cowl box is not always sufficient. .

In view of such circumstances, it is an object of the present invention to provide a vehicle body structure for an automobile in which the assembling accuracy of the front hood with respect to the fender panel and the joint rigidity between the front pillar and the cowl box are improved.

[0006]

DISCLOSURE OF THE INVENTION The present invention for solving the above problems provides a brace that straddles a body side outer panel forming a lower half portion of a front pillar and a member forming an upper portion of a cowl box. In addition to coupling, the rear end of the hood ridge reinforcement is covered on the brace and coupled, and a fixing point of the hood hinge and the fender panel is provided at the coupling portion of the hood ridge reinforcement and the brace. Reinforcement
There are multiple convex parts on the
Characterize.

The hood hinge mounting seat surface may be embossed on the brace, and a hole may be formed in the hood ridge reinforcement to project the mounting seat surface.

The peripheral wall portion of the embossed portion may be welded to the peripheral edge of the hole.

[0009]

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a connecting portion between a front pillar and a cowl box. In the figure, reference numeral 1 denotes a body side outer panel which constitutes a lower half portion of a front pillar 2, and a rear end portion of a hood ridge reinforcement 3 is joined to the panel 1. Hood Ridge Reinforce 3
Is joined to a hood ridge panel (not shown) to form a closed cross section extending in the front-rear direction of the vehicle body. Reference numeral 4 denotes a cowl box arranged substantially at right angles to the closed cross section, and the cowl top front panel 6 and the dash upper panel 7 constitute an open cross section 8 (see FIG. 4). A dash cross member 12 having a closed cross section 11 composed of upper and lower members 9 and 10 is joined to the rear upper surface of the cowl box 4. That is, the dash cross member 12 is arranged as a member constituting the upper part of the cowl box 4. The openings at both ends of the cowl box 4 are closed by cowl side panels 13 (see FIG. 5).

The body side outer panel 1 and the cowl box 4 are joined with a brace 30 as shown in FIG. The brace 30 includes a pair of front and rear hood hinge mounting seat surfaces 14, 14 and a fender mounting seat surface 1.
5 is embossed and the hood hinge mounting seat surface 1
The embossed portions 4 and 14 are integrally formed with convex portions 16 and 16 which are lower than the embossed portions. Further, holes 17 are formed in the mounting seat surfaces 14 and 15, respectively, and the welt nut 18 is provided on the back side of the holes 17.
Is installed (see FIGS. 3 and 5). The brace 30 is provided with a bent portion 19 that straddles the outer edge and the front end edge.
A welt nut 21 is also installed on the back side of the hole 20 of 9 (see FIG. 6).

The brace 30 has its rear end joined to the body side outer panel 1 by spot welding, and
The inner edge thereof is joined to the dash cross member 12 by spot welding. Then, the brace 30 is covered with the hood ridge reinforcement 3 and the hole 2 in the upper wall 3a is covered.
2 to brace 30 hood hinge mounting seat surface 14, 14
After projecting the fender mounting seat surface 15 and the side edges of the hood ridge reinforcement 3 by arc welding, the braces 30
It is joined to. Also, the hood hinge mounting seat surface 14,1
The peripheral edges of the holes 22, 22 through which the holes 4 are formed are also joined by arc welding across the peripheral wall portions 14a, 14a of the embossed portion and the convex portions 16, 16.

Further, the hole 23 of the side wall 3b of the hood ridge reinforcement 3 and the hole 20 of the bent portion 19 of the brace 30 are provided.
It is screwed into the welt nut 21 through the bolt 24. Finally, the hood hinge mounting seat surface 1 of the brace 30
The hood hinge 25 is fixed to the bolts 4 and 14 with bolts 26 and 26, and the fender panel 2 is attached to the fender mounting seat surface 15.
7 is fixed with bolts 28 (see FIGS. 3 and 5). The rear end of the fender panel 27 is fixed to the body side outer panel 1 as in the conventional case.

According to the structure of this embodiment, the brace 3 in which the front hood (not shown) and the fender panel 27 are common.
Since it is assembled with 0 as a reference, the assembling accuracy of the front hood to the fender panel 27 is improved.

Further, in addition to the rear end portion of the hood ridge reinforcement 3, the brace 30 is also joined across the body side outer panel 1, the dash cross member 12, and the cowl top panel 5, so that the front pillar 2 is provided. The joint rigidity between the cowl box 4 and the cowl box 4 is also improved.

Furthermore, since the lower surface of the hood hinge 25 is lifted from the hood ridge reinforcement 3 by the hood hinge mounting seat surfaces 14, 14 of the brace 30, rust is unlikely to occur on the mating surfaces of the two.

Furthermore, since the peripheral edges of the holes 22, 22 of the hood ridge reinforcement 3 are joined to the peripheral walls 14a, 14a of the embossed portion by arc welding, the rigidity of the attachment portion of the hood hinge 25 is improved.

By the way, Hood Ridge Reinforce 3
Since it is structurally impossible to join the brace 30 and the brace 30 by spot welding, only the side edge of the hood ridge reinforcement 3 is arc-welded.
Since a gap 29 is formed between the hoods 6 and 16 and the hood ridge reinforcement 3, there is no risk of chattering.

In this embodiment, the brace 30 is provided with the protrusions 16 and 16 to form the gap 29 between the brace 30 and the hood ridge reinforcement 3. However, this protrusion is on the hood ridge reinforcement 3 side. It may be provided.

According to the present invention, since the front hood and the fender panel are assembled with the common brace as a reference, the accuracy of assembling the front hood to the fender panel is improved. In addition to the rear end of the Hood Ridge Reinforce, the brace is also connected across the upper side of the cowl box and the body side outer panel, so the rigidity of the front pillar and cowl box is also improved. To do. In addition, Hood Ridge Reinforce
Since a gap is formed between the brace and the brace,
Welded only the side edges of the giraffe force to the brace
There is no risk of chattering sound alone.

According to the second aspect of the invention, the lower surface of the hood hinge is lifted from the hood ridge reinforcement, and rust is less likely to occur on the mating surface of the two.

According to the third aspect of the invention, since the peripheral edge of the hole of the hood ridge reinforcement is joined to the peripheral wall of the emboss-molded portion, the rigidity of the hood hinge mounting portion is improved.

[0024]

[Brief description of drawings]

FIG. 1 is a perspective view showing the structure of the present invention.

FIG. 2 is a view showing a state in which a hood ridge reinforcement of FIG. 1 is removed.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG.

5 is a cross-sectional view taken along the line CC of FIG.

6 is a cross-sectional view taken along the line DD of FIG.

[Explanation of symbols]

1 ... Body side outer panel 2 ... Front pillar 3 ... Food Ridge Reinforce 4-Cowl box 5: cowl top panel 9 ... Dash cross member 25 ... Hood hinge 27 ... Fender panel 30 ... Brace

Claims (3)

(57) [Claims] 1. A brace is connected across a body side outer panel constituting a lower half portion of a front pillar and a member constituting an upper portion of a cowl box, and a rear end portion of a hood ridge reinforcement is attached to the brace. And fixing the hood hinge and the fender panel at the joint between the hood ridge reinforcement and the brace.
A plurality of convex portions are provided on the sleeve to form a gap between them.
The body structure of an automobile characterized by. 2. The automobile according to claim 1, wherein a hood hinge mounting seat surface is embossed on the brace, and a hole is formed in the hood ridge reinforcement to project the mounting seat surface. Body structure. 3. The vehicle body structure for an automobile according to claim 2, wherein a peripheral wall portion of the embossed portion is welded to a peripheral edge of the hole.