JP2534848Y2 - Fender panel mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a fender panel on both right and left sides of a front portion of a vehicle, and more particularly, to a fender panel mounting structure for improving door opening and preventing glass breakage in a frontal collision. About.

[0002]

2. Description of the Related Art Conventionally, mounting of a fender panel on a front portion of an automobile is performed by mounting flanges formed on a front end, an upper end, an upper end and a lower end of a fender panel, and corresponding mounting flanges on a vehicle body skeleton side. bolt and nut)
It was common to fasten and fix.

[0003] For example, a structure disclosed in Japanese Utility Model Laid-Open No. 2-96325 is known as such a rear end upper mounting structure of the fender panel, and this structure is shown in FIG. In addition,
In the figure, 01 is a mounting flange, 02 is a vehicle body frame member, 03 is a mounting flange on the vehicle body frame member side, and 04 is a fender panel.

[0004]

However, the above-mentioned known fender panel mounting structure does not take into account any obstacles to the opening of the door which would be caused by the damage of the fender panel at the time of a frontal collision. In order to prevent such opening of the door, the door has been reinforced with a reinforcement or the like. With such means,
Increases in cost and weight cannot be avoided.

By the way, at the time of a frontal collision, the impact of the collision deforms the fender panel toward the rear of the vehicle body, and the fender panel deforms the door located behind the fender panel. When the input to the fender panel is transmitted to the body frame member and the body frame member is deformed, the opening for the door may be deformed. As a result, the door opening property of the door may be deteriorated. The door glass may be damaged. In addition,
Such deformation of the fender panel is particularly large at the time of a front oblique collision of the vehicle.

The present invention has been made in view of the above-mentioned problems of the prior art. Even if the fender panel is damaged at the time of a frontal collision, the door is opened by the damaged fender panel. It is an object of the present invention to provide a fender panel mounting structure capable of preventing glass breakage without impairing performance.

[0007]

Means for Solving the Problems To achieve the above object, the present inventor has proposed that when a fender panel expands outward due to a compressive force generated in the fender panel due to a frontal collision of a vehicle, the fender is compressed by the compressive force. It was found that if the mounting flange at the top rear end of the panel comes off the vehicle frame member, the fender will come off in the outward direction of the door outer panel. The inventor has devised a mounting structure having a configuration in which is formed.

That is, in the fender panel mounting structure of the present invention , mounting holes are formed in at least the upper and lower portions of the rear end of the fender panel provided at the front of the vehicle body.
In the fender panel mounting structure attached to the vehicle body frame member, behind the top of the rear end of the fender panel
Flange Mounting extending is provided to, on the mounting flange, with the upper portion of the mounting holes for mounting to the vehicle body frame member is formed, around the lower mounting holes of the rear end portion of the fender panel and then the upper circle is arranged on the arc was,
The mounting hole is formed with a notch that opens toward the front of the vehicle body.

[0009]

When the vehicle is obliquely hit in the front in a high-speed range, the front end fastening portion of the fender panel is caught between the collision partner and the vehicle. In this state, an impact is applied to the fender panel rearward (in the compression direction). Is done. As a result, the fender panel bulges outward and attempts to bend, and eventually, the fastening portion at the middle portion of the fender panel where the force acts in the most bending direction is broken and detached from the vehicle body.

[0010] The compression input acts greatly on the vehicle body mounting portion at the rear end of the fender panel in the vehicle outward and rearward direction. In this case, the upper mounting flange is provided with a lower portion of the rear end of the fender panel. Since the notch is formed on the arc passing through the mounting hole with the mounting position as the center and the mounting hole is opened in the front direction of the vehicle body, the compressive force is centered on the mounting position at the lower rear end of the fender panel. Acting on the fender panel as a rotational force, the upper mounting flange comes off the vehicle body frame member. At this time, the fender panel is bulging outward due to the compressive force generated by the collision, so when the upper mounting flange comes off the vehicle body,
The door will be displaced outward without colliding with the rear door.

Therefore, the input to the fender panel is not largely transmitted to the body frame member, and the body frame member is not deformed, and the fender panel does not deform the door itself.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings.

FIG. 2 is an exploded perspective view showing the mounting structure of the fender panel 1 according to the embodiment structure. The fender panel 1 has flanges 1a, 1b, 1c, 1 at appropriate positions.
d, 1e, and 1f are formed. The fender panel 1 is formed to have a ridge 11 formed by pressing at an upper portion and to protrude outward.

FIG. 1 is a side view of the fender panel 1, and as shown in FIG.
3 and extends rearward at the rear end of the ridge 11
The mounting flange 1a digits set by mounting bolt 6 (FIG. 2
(See FIG. 1), and an arc r passing through the mounting hole 10 with the mounting hole 1g formed in the mounting flange 1f below the rear end portion 13 as the center.
And a notch 10a that opens the mounting hole 10 in the front direction of the vehicle body.

[0015] Then, as shown in FIGS. 1 and 4, the mounting flange 1a, 1f is Mounting from the side of the vehicle V 6,7
Is attached to a pillar 2a as a vehicle body skeleton member forming a front end edge of an opening 8a for the door 8, and an upper mounting flange 1b is fixed to an upper frame 2 by a mounting bolt 5.
b, and the front mounting flanges 1c, 1d
It is attached to the front part of the vehicle body 2 by attachment bolts 3 and 4. In this mounting state, the outer surface of the rear end 13 of the fender panel 1 is installed on the same plane as the outer surface of the front end of the door 8, as shown in FIG. By the way, usually on aerodynamics, the outer surface of the front end of the door 8
It is installed at the same position as the outer surface of the rear end of the fender panel, or slightly near the center of the vehicle body.

Next, the operation of the embodiment will be described.

When the vehicle is running at a high speed, as shown in FIG.
The mounting flanges 1c, 1d, and 1e, which are fastening portions at the front end of the fender panel 1, are caught between the collision partner and the vehicle, and are fixed.

In this state, when an impact is applied rearward (compression direction) to the fender panel 1, the fender panel 1 bulges outward and curves as shown by the imaginary line in FIG. Is an upper flange 1 for fixing an intermediate portion of the fender panel 1 without being able to withstand the bulge.
The portion b is broken and comes off the upper frame 2b.

Thus, when the fender panel 1 comes off the upper frame 2b, the rear end portion 13 of the fender panel 1 is removed.
In this case, the compressive force acts maximum at the portion of the ridge 11 where the rigidity is highest, and the displacement is maximized. The upper mounting flange 1a is centered on the mounting hole 1g of the lower mounting flange 1f. Since the notch 10a is formed in a shape along the arc r passing over the mounting hole 10 and the mounting hole 10 is opened in the front direction of the vehicle body, the fender panel 1 is formed as shown by the imaginary line in FIG. The upper mounting flange 1a is disengaged from the pillar 2a by applying a rotational force about the fastening position by the mounting hole 1g.

At this time, as shown in FIG. 4, after the fender panel 1 is swelled outward from the state at the time of mounting a) as shown in the drawing during the collision of b), the mounting flange 1a is mounted.
The rear end 13 of the fender panel 1 does not collide with the door 8 outward and rearward as shown in the figure at the time of the detachment of c) because the pillar 2a is detached from the pillar 2a in a state where the force is applied outward. become.

Therefore, the impact force input to the fender panel 1 is not greatly transmitted to the pillar 2a.
The pillar 2 is not largely deformed, and the door 8 is not deformed by colliding with the door 8. The mounting flange 1f at the lower end of the rear end of the front fender 1 has a structure that does not easily come off from the pillar 2a as in the conventional case. The input to the pillar 2a is not large, and this portion is a connecting portion between the pillar 2a and a side sill (not shown).
a and the deformation of the door 8 are unlikely.

As described above, in the present embodiment, the fender panel 1 does not come off the vehicle body 2 at the time of a front oblique collision of the vehicle, and the pillar 2a and the door 8 are not deformed. And the glass of the door 8 can be prevented from breaking. In order to obtain such an effect, the mounting flange 1a
Because it is a simple configuration in which only the notch 10a is formed,
There is no increase in weight or cost.

Although the embodiment has been described with reference to the drawings, the specific configuration is not limited to the configuration of this embodiment. For example, in the embodiment, the notch is arranged on an arc passing through the mounting hole centering on the lower mounting position of the rear end of the fender panel, and when the mounting hole is opened in the front direction of the vehicle body, the mounting hole 1g is removed. Although the notch is formed in the shape along the centered arc r, if the notch is arranged on the arc, the fastening means such as the fastening bolt 6 and the fastening means will not be fastened at the time of collision, It is not necessary to form in the said arc shape. Further, in the embodiment, the rear end portion 13 of the fender panel 1 is attached to the pillars 2a in both the upper and lower directions.

[0024]

[Effect of the Invention] As described above, in the fender panel mounting structure of the present invention, in addition to the mounting holes for mounting to the vehicle body frame member, the mounting flange at the upper end of the rear end of the fender panel and the rear end of the fender panel are provided. At the time of a frontal collision in a high-speed range, the rear end of the fender panel is formed in such a manner that a notch is formed which is arranged on an arc passing through the mounting hole with the lower mounting position as a center and the mounting hole is opened forward of the vehicle body. The upper mounting flange is disengaged from the vehicle body, and the fender panel is disengaged from the outer side surface of the vehicle body while rotating about the mounting position at the lower rear end, so that the door is not deformed and the body frame member is deformed. There is no
It is possible to improve the door openability at the time of a frontal collision and prevent glass breakage without incurring an increase in cost and weight.

[Brief description of the drawings]

FIG. 1 is a side view showing a front fender to which a mounting structure according to an embodiment of the present invention is applied.

FIG. 2 is an exploded perspective view showing the fender panel mounting structure of the embodiment.

FIG. 3 is an explanatory plan view showing an operation at the time of a collision by the structure of the embodiment.

FIG. 4 is an explanatory cross-sectional view showing an operation at the time of a collision by the structure of the embodiment.

FIG. 5 is a cross-sectional view showing a conventional fender panel mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fender panel 1a Mounting flange 2a Pillar (body frame member) 10 Mounting hole 10a Notch

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounting hole is formed in at least an upper portion and a lower portion of a rear end portion of a fender panel provided at a front portion of a vehicle body.
In a fender panel mounting structure mounted to a vehicle body frame member by a mounting hole, a mounting flange extending rearward is provided above a rear end of the fender panel, and the mounting flange includes a vehicle body frame. Said for mounting to a member
Together with the upper attachment hole is formed, the said upper and lower mounting holes are arranged on a circle arc whose center of the rear end of the fender panel, notches for opening is formed a mounting hole in the vehicle body forward A fender panel mounting structure characterized in that: