JPH0492778A - Front side plate of body fitting part construction - Google Patents

Abstract

PURPOSE:To improve rigidity of the joining part of the rear part of a vehicle body front side plate with a front pillar and improve vibration characteristic of the body by extendedly providing a front pillar reinforce on the front side of the body in the front and rear direction, and supporting the rear part of the body front side plate with this extended part through the front pillar. CONSTITUTION:An outer 22 and an inner 24 constituting a front pillar 20 are arranged inside in the vehicle width direction of the rear part 12A of a front fender apron 12. A front pillar reinforce 34 is arranged in the closed sectional part of the front pillar 20. In this case, extended parts in front 36, 38 are formed on the upper part of front end 34D of the reinforce 34, corresponding to the through holes 28, 30 of the outer 22. Through holes 36A, 38A and weld nuts 40 are respectively provided on the extended parts 36, 38. Bolts 18 are screwed in the weld nuts 40, and the rear part 12A of the apron 12 is fixedly secured to the reinforce 34 through the outer 22.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure for attaching a front side plate of an automobile body.

[Conventional technology]

Conventionally, a structure for mounting a front side plate of an automobile body is disclosed in Japanese Utility Model Application Publication No. 62-40079 and the like.

As shown in FIG. 4, in this vehicle body front side plate attachment structure, the side plate portion of the front body 5OA of the vehicle body 50 is constituted by a front apron 52 and a front fender 53 disposed on the outside thereof.

However, in this vehicle body front side plate attachment structure,
A rear portion 52A of the front apron 52 is supported by an outer portion 54A of the front pillar 54 in the vehicle width direction via a bracket 56 as shown in FIG.

For this reason, the support rigidity of the rear part 52A of the front apron 52 is not sufficient, and the load applied to the front apron 52,
In particular, due to loads in the vertical direction of the vehicle body, the front apron 52
There was a problem in that the vibration caused the vibration characteristics of the car body to deteriorate.

[Problem to be solved by the invention]

In consideration of the above facts, the present invention provides a vehicle front side plate attachment structure that can improve the rigidity of the joint between the rear part of the front side plate of the vehicle body and the front pillar, and improve the vibration characteristics of the vehicle body. That is the purpose.

[Indispensable means to solve problems]

The vehicle body front side plate attachment structure according to the present invention includes a front pillar provided on the rear side of the vehicle front side plate in the longitudinal direction of the vehicle body and having a closed cross section extending substantially in the vertical direction of the vehicle body, and a front pillar provided within the closed cross section. The vehicle body front side plate attachment structure has a front pillar reinforcement that extends to the front side in the longitudinal direction of the vehicle body to form an extension portion, and the front pillar reinforcement is attached to the vehicle body through the front pillar. It is characterized by supporting the rear part of the front side plate.

[Effect]

According to the present invention, the rear part of the front side plate of the vehicle body is supported by the extending portion of the front pillar reinforcement toward the front of the vehicle body via the front pillar. Therefore, the load acting on the rear part of the front side plate of the vehicle body due to vibrations during driving can be transmitted to the closed cross section of the front pillar via the front pillar and the front pillar reinforcement. Therefore, the rigidity of the joint between the rear part of the front side plate of the vehicle body and the front pillar can be improved, and the vibration characteristics of the vehicle body can be improved.

〔Example〕

An embodiment of the present invention will be explained with reference to FIGS. 1 to 3.

In the figure, arrow FR indicates the front direction of the vehicle body, arrow UP indicates the upward direction of the vehicle body, and arrow IN indicates the inside direction of the vehicle body width direction.

As shown in FIG. 1, a front fender apron 12 that extends in the longitudinal direction of the vehicle body and serves as a front side plate of the vehicle body is disposed on the outer side of the front body 10 in the vehicle width direction. Front fender (not shown) that constitutes the side surface of the body 10
is supported.

As shown in FIG. 2, the front fender apron 12
Through holes 14 and 16 are bored in the rear part 12A of the vehicle at a predetermined distance in the vertical direction of the vehicle body.
．． A bolt 18 is inserted into each of the bolts 16 from the outside in the vehicle width direction. In addition, on the front fender apron 12,
A reference hole 13 for positioning and a hole 15 for attaching a hood hinge (not shown) are drilled, respectively.

A front pillar outer 22 and a front pillar inner 24 that constitute the front pillar 20 are arranged inside the rear 112A of the front fender apron 12 in the vehicle width direction.

The front end of the side wall 24A of the front pillar inner 24 is bent outward in the vehicle width direction to form a front wall 24B, and the outer end of the front wall 24B in the vehicle width direction is bent forward in the longitudinal direction of the vehicle to form a flange 24C. It is said that This flange 2
4C is welded to the side wall portion 22A of the front pillar outer 22 from the inside in the vehicle width direction.

Further, the rear end of the side wall 22A of the front pillar outer 22 is bent inward in the vehicle width direction to form a rear wall 22B, and the inner end of the rear wall 22B in the vehicle width direction extends rearward in the vehicle longitudinal direction. It is bent to form a flange 22C. This flange 22C is connected to the side wall portion 24 of the front pillar inner 24.
It is welded to the rear end edge 24D in the longitudinal direction of the vehicle body of A from the outside in the vehicle width direction.

Therefore, as shown in FIG. 3, the front pillar outer 22 and the front pillar inner 24 form a closed cross section 26 that extends substantially in the vertical direction of the vehicle body.

As shown in FIG. 2, the side wall portion 22A of the front pillar outer 22 extends forward to form an extension portion 27.
A through hole 28.30 is bored in this extending portion 27 coaxially with the through hole 14.16 of the front fender apron 12. Further, the front end portion of the extension portion 27 is bent inward in the vehicle width direction to form a front wall portion 22D of the front pillar outer 22, and the inner end portion of the front wall portion 22D in the vehicle width direction is bent toward the front side in the vehicle longitudinal direction. It is bent to form a flange 22E, and has a structure that prevents water from entering the closed cross-section portion 26.

The lower part of the front pillar outer 22 has a U-shaped cross-sectional shape when viewed from the rear of the vehicle, with the opening facing inward in the vehicle width direction, and the inner end of the bottom portion 22F in the vehicle width direction opens downward in the vehicle vertical direction. It is bent to the side to form a flange 22G. This flange 22G is the side wall portion 2 of the front pillar inner 24.
It is welded to the lower end edge 24E of 4A from the outside in the vehicle width direction.

On the other hand, the lower earthen wall portion 22H of the front pillar outer 22 is welded from above in the vehicle body vertical direction to a horizontal step portion 24F formed on the side wall portion 24A of the front pillar inner 24 toward the outside in the vehicle width direction.

Therefore, as shown in FIG. 3, the lower part of the front pillar outer 22 and the lower part of the front pillar inner 24 form a closed cross section 32 that extends in the longitudinal direction of the vehicle body.

As shown in FIGS. 2 and 3, the front pillar 20
A front pillar reinforcement 34 is disposed within the closed cross-section portion 26 of the vehicle. The rear end portion of the side wall portion 34A of the front pillar reinforcement 34 is bent inward in the vehicle width direction to form a rear wall portion 34B, and the inner end portion of the rear wall portion 34B in the vehicle width direction is bent rearward in the vehicle longitudinal direction. flange 34C. This flange 34C is welded between the flange 22C of the front pillar outer 22 and the flange 24D of the front pillar inner 24.

The front end upper portion 34D of the side wall portion 34A of the front pillar reinforcement 34 is welded between the flange 24C of the front pillar inner 24 and the side wall portion 22A of the front pillar outer 22.

Front end upper part 34Dl of front pillar reinforcement 34
: is formed with a forwardly extending portion 36.38 corresponding to the through hole 28.30 of the front pillar outer 22. These extensions 36.38 have through holes 36, 36 and 36 coaxially with the through holes 28.30 of the front pillar outer 22.
A and 38A are drilled respectively. Also, the extension part 36.3
Weld nuts 40 are welded coaxially with the through holes 36A and 38A, respectively, on the inner sides of the holes 8 in the vehicle width direction.

Therefore, the bolt 18 is screwed into the weld nut 40,
A rear portion 12A of the front fender apron 12 is fixed to a front pillar reinforcement 34 via a front pillar outer 22.

The lower front end 34E of the side wall portion 34A of the front pillar reinforcement 34 is connected to the side wall portion 2 of the front pillar outer 22.
It is welded to the lower part of 2A from the inside in the vehicle width direction. Also,
Flanges 34F and 34G are formed at the lower end edge of the front pillar reinforcement 34 toward the lower side in the vehicle body vertical direction, and these flanges 34F and 34G are connected to the flange 22G of the front pillar outer 22 and the front pillar inner 24 and the lower end edge 24E of the side wall 24A.

The operation of this embodiment will be explained below.

In this embodiment, a rear portion 12A of the front fender apron 12 is supported by bolts 18 and wed nuts 40, respectively, through the front pillar outer 22 and the extension portions 36 and 38 of the front pillar reinforcement 34.

Therefore, the load acting on the rear portion 12A of the front fender apron 12 due to vibrations during driving can be transmitted to the closed cross-section portion 26 of the front pillar 20 via the front pillar outer 22 and the front pillar reinforcement 34. Therefore, the rigidity of the joint between the rear portion 12A of the front fender apron 12 and the front pillar 20 can be improved, and the vibration characteristics of the vehicle body can be improved.

Further, in this embodiment, since a bracket for fixing the front side plate of the vehicle body is not required, the number of parts is reduced and costs can be reduced.

In addition, in the above embodiment, an example in which the present invention is applied to the mounting structure of the front fender apron 12 as a front side plate of the vehicle body has been described, but the front side plate of the vehicle body is not limited to the front fender apron 12. It may be a front fender.

[Effect of Hathu]

Since the present invention has the above configuration, the rigidity of the joint between the rear part of the front side plate of the vehicle body and the front pillar can be improved,
It has the excellent effect of improving the vibration characteristics of the vehicle body.

[Brief explanation of drawings]

FIG. 1 is a side view showing the structure of the front side plate attachment part of the vehicle body according to this embodiment, FIG. 2 is an exploded perspective view showing the structure of the front side plate attachment part of the vehicle body according to this embodiment, and FIG. Fig. 4 is a perspective view showing the structure of the conventional front side plate attachment part of the car body, and Fig. 5 shows the conventional front side plate attachment of the car body. FIG. 3 is a perspective view showing an apron mounting bracket of the partial structure. DESCRIPTION OF SYMBOLS 10... Front body 12... Front fender apron, 12A... Rear, 20... Front pillar 22... Front pillar outer, 26... Closed section, 34... Front pillar reinforcement, 36.38
...Extension section.

Claims (1)

[Claims] (1) A vehicle body that includes a front pillar that is disposed on the rear side of the front side plate of the vehicle body and has a closed cross section that extends substantially in the vertical direction of the vehicle body, and a front pillar reinforcement that is provided within the closed cross section. In the front side plate attachment structure, the front pillar reinforcement is extended to the front side in the longitudinal direction of the vehicle body to form an extension part, and the rear part of the front side plate of the vehicle body is attached to the extension part via the front pillar. A vehicle body front side plate attachment structure characterized by supporting.