JPH11180233A - Mounting structure of bumper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a bumper by which a lower end of the bumper of an automobile can be mounted on a cover located at a lower part of a car body with high workability. SOLUTION: A rib 10a extending along a mounting position of a bumper facer 10 is mounted on a lower face of a lower end of a bumper facer 10, a point of an under cover 14 is overlapped from a lower part of the bumper facer 10 on the inside of a car with respect to the rib 10a, and the overlapped part is connected with a bolt 20 inserted from a point lower part of the under cover 14, whereby the lower end of the bumper facer 10 is mounted on the under cover 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper mounting structure for mounting a lower end of a vehicle bumper to covers disposed below a vehicle body.

[0002]

2. Description of the Related Art Conventionally, as this type of bumper mounting structure, there is one described in FIG. 7 and Japanese Utility Model Laid-Open No. 2-136784. In FIG. 7, covers 3 such as an under cover and a fender protector arranged below the vehicle body.
In a state where the spring nut 32 is attached to the tip of the bumper 34, the substantially horizontal portion 34a at the lower end of the bumper 34 is overlapped from below the covers 30 so that the substantially horizontal portion 3
The bumpers 34 are attached to the covers 30 by temporarily placing the covers 30 on the 4a and fastening the bolts 36 from below the substantially horizontal portion 34a to the spring nuts 32.

[0003] In addition, Japanese Unexamined Utility Model Publication No. Hei 2-136784 discloses a method in which a front end portion of a fender liner is mounted between a lower flange of a bumper and a rib provided along the lower flange, and is fixed. The child is fixed to the rib or the lower flange.

[0004]

However, in the arrangement shown in FIG. 7, when the bolts 36 and the spring nuts 32 are fastened, the covers 30 bend upward and escape.
It is necessary for an operator to press the covers 30 with a finger, and there is a problem that workability is poor. Further, it is necessary to provide a work hole 30a through which the operator's finger passes through the cover 30. However, the work hole 30a reduces the rigidity of the tip of the cover 30 and causes the cover 30 to bounce when traveling in a puddle. There is a problem that the raised muddy water flows into the bumper 34 from the working hole 30a, flows out of the front opening of the bumper 34, and the bumper 34 becomes dirty. Furthermore, bumper 3
4 is heavy, and the recent one has lost its rigidity with the increase of the front opening provided in the bumper. Therefore, even if the upper end of the bumper 34 is fixed to the fender, the position thereof fluctuates. Covers 3
There is a problem that it is difficult to attach with high accuracy simply by attaching to zero.

[0005] Further, in Japanese Unexamined Utility Model Publication No. 2-136784, since there is no sufficient clearance from the front end of the covers and the lower end of the bumper, the front ends of the covers are connected to the lower flange. In order to insert it between the ribs, the front end must be bent and inserted, which makes the operation difficult and requires skill. SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to provide a bumper mounting structure capable of improving workability.

Another object of the present invention is to provide a bumper mounting structure capable of improving the positional accuracy of the bumper, in addition to the above object.

[0007]

According to one aspect of the present invention, there is provided a bumper mounting structure for mounting a lower end of a bumper to covers disposed below a vehicle body. A rib extending along the bumper mounting portion is provided on the lower surface of the bumper, and the tips of the covers are overlapped from below the bumper on the vehicle inner side with respect to the rib of the bumper, and the overlapping portion is inserted from below the tip of the covers. The lower end of the bumper is attached to covers by coupling with a coupling member.

According to a second aspect of the present invention, in the first aspect, the tip of the cover is a bent portion which is bent upward when the bumper is not attached. According to a third aspect of the present invention, in the second aspect, when the bent portion is joined by a joining member, the bent portion is eliminated along the bumper, and the tip of the cover contacts the rib. Attach the bumper.

According to a fourth aspect of the present invention, in the vehicle according to any one of the first to third aspects, the side wall on the outer side of the rib is gradually inclined toward the inside of the vehicle toward the top of the rib. It has become.

[0010]

According to the first aspect of the present invention, the tips of the covers are overlapped and joined from below the bumper, which is higher in rigidity than the covers, so that it is necessary to press the work hole with a finger as in the prior art. And the workability can be improved. Accordingly, since it is not necessary to provide the working holes in the covers, not only the terminal rigidity of the covers can be ensured, but also the mud does not occur and the bumper can be prevented from being stained.

Furthermore, since the tips of the covers are arranged inside the ribs of the bumper on the inside of the vehicle, even if the tips of the covers are turned or wavy, they cannot be seen from outside the vehicle.
Does not degrade the appearance. According to the second aspect of the present invention, in addition to the effect of the first aspect, the front end of the cover is formed as a bent portion that bends upward in a state where the bumper is not attached, so that the cover can be protected. When the tip is attached to the bumper from below, the tip tends to be in close contact with the bumper, so that it is possible to prevent the tip of the cover from being turned or wavy. Thereby, the rib height of the bumper can be kept low.

According to the third aspect of the present invention, in addition to the effect of the second aspect, the position of the bumper can be easily determined by mounting the bumper such that the tip of the cover contacts the rib. It is possible to improve the positional accuracy. According to the fourth aspect of the present invention,
In addition to the effect of any one of claims 1 to 3, in addition to the side wall on the vehicle exterior side of the rib, the rib of the bumper hits the curb because the side wall is gradually inclined toward the vehicle interior toward the top of the rib. When the curb is received by the inclined surface of the rib at times or the like, the vehicle body can be smoothly lifted by the upward component force received by the inclined surface, and the top of the rib can be placed on the curb. At this time, the mounting point between the bumper and the covers is located inside and above the rib, so that the rib can be prevented from being torn and damaged, and the damage can be minimized.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG.
Is the bumper fascia that constitutes the bumper,
The upper end is connected to the front fender 12 at a stop point (not shown). Bumper fascia 1
The lower end of 0 is designed to go under the car body,
Then, the under cover 14 and the cover of the fender protector 16 which are also arranged below the vehicle body are attached.

The lower surface of the lower end of the bumper fascia 10 is provided with a rib 10a extending along a mounting portion with a cover. As shown in FIG. 2, the rib 10 a has a side wall on the outside of the vehicle formed as an inclined surface 10 b that is gradually inclined toward the inside of the vehicle toward the top of the rib 10 a. Further, a plurality of mounting holes 10c are formed along the rib 10a inside the vehicle than the rib 10a.

The under cover 14 is disposed below the front center of the engine room, and has a rear end attached to a cross member (not shown). Further, the fender protectors 16 are provided below the front left and right sides of the engine room, respectively, and are attached to the lower ends of the front fenders 12, respectively. As shown in FIG. 2 (FIG. 2 shows only the under cover 14, but the same applies to the fender protector 16), each of the distal ends of the under cover 14 and the fender protector 16 has a plurality of elongated holes. Holes 14a and 16a are formed. On the other hand, a spring nut 22 is mounted on the bumper fascia 10 so as to align with the mounting hole 10c, and is a coupling member that passes through the mounting hole 10c and the mounting holes 14a and 16a. When a certain bolt 20 is screwed to the spring nut 22,
Lower end of bumper fascia 10 is under cover 1
4 and the fender protector 16.

The attachment procedure will be described in detail with reference to FIGS. In addition, although the example of the figure shows one cross section attached to the under cover 14, the same applies to the fender protector 16. As shown in FIGS. 3 and 5, the distal ends of the undercover 14 and the fender protector 16 have bent portions that bend upward in a state where the bumper fascia 10 is not mounted, corresponding to the mounting portion of the bumper fascia 10. 14b and 16b.

As shown in FIG.
Is mounted on the bumper fascia 10 on which the under cover 14 is attached. At this time,
As shown in the drawing, it is easy to perform the work if the temporary position is determined so that the bent portion 14b abuts on the inner wall surface of the rib 10a of the bumper fascia 10, but the position of the bumper fascia 10 is shifted and the bent portion 14b is displaced. 14b does not have to be in contact with the rib 10a.

Next, the bolt 20 is inserted into the mounting hole 14a and the mounting hole 10c and tightened to the spring nut 22. When the bumper fascia 10 and the under cover 14 approach each other as they are tightened, the bent portion 14b forcibly bends along the bumper fascia 10 while pressing the rib 10a toward the outside of the vehicle, and finally, As shown in FIG. 2, the leading end of the bent portion 14b abuts on the rib 10a, and
The mounting ends when b is straightened.

As described above, the tips of the undercover 14 and the fender protector 16 are overlapped and joined from below the bumper fascia 10 having higher rigidity than the undercover 14 and the fender protector 16, so that the conventional operation is performed. There is no need to press the hole with a finger, and workability can be improved. Accordingly, it is not necessary to provide a working hole in the undercover 14 or the fender protector 16, so that the rigidity of the tip of the undercover 14 or the fender protector 16 can be ensured, and at the same time, the working hole can be formed in the bumper fascia 10 during puddle traveling. The dirt on the bumper can be prevented without causing mud dripping from the formed front opening 10d.

Further, even if the bumper fascia 10 is displaced before the under cover 14 and the fender protector 16 are attached, the bumper fascia 10 can be positioned by the bent portions 14b, 16b and the ribs 10a. Can be improved in mounting position accuracy. That is, since the under cover 14 and the fender protector 16 can be formed with high precision by hot press molding, respectively, they are accurately positioned in a state where they are attached to the cross member, the front fender 12 and the like. Therefore, by attaching the rib 10a to the tips of the under cover 14 and the fender protector 16, the mounting accuracy of the bumper fascia 10 is improved, and as a result, the surface alignment between the bumper and the headlamp 24 or the vehicle body is improved. Can be done.

Further, since the ribs 10a prevent the front ends of the undercover 14 and the fender protector 16 from being seen from the outside of the vehicle, the undercover 14 and the front end of the fender protector 16 may be turned up or may be located between the mounting points. Even if there are ripples, it does not degrade the appearance. Further, since the bent portions 14b and 16b are originally urged in a direction to bend upward, the bent portions 14b and 16b tend to adhere to the bumper fascia 10 even after attachment.
For this reason, the end of the undercover 14 and the fender protector 16 is hardly turned up or wavy, and the height of the rib 10a does not need to be too high.

When the vehicle to which the bumper is mounted hits a curb or the like as described above, the curb or the like is moved to the rib
Of the inclined surface 10b.
Due to the upward component force received by the rib, the vehicle body can be smoothly lifted, and the top of the rib 10a can be placed on the curb. At this time, since the mounting points of the bumper fascia 10, the under cover 14, and the fender protector 16 are on the inside of the rib 10a and above the top of the rib 10a, it is prevented from being torn and damaged, Damage can be prevented from reaching the undercover 14 and the fender protector 16.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mounting structure of a bumper according to an embodiment of the present invention, as viewed from the lower front.

FIG. 2 is a cross-sectional view of a main part showing a mounting structure of the bumper of FIG. 1;

FIG. 3 is a sectional view of a main part showing a state before mounting of the mounting structure of the bumper of FIG. 1;

FIG. 4 is a cross-sectional view of a main part showing a state during mounting of the bumper mounting structure of FIG. 1;

FIG. 5 is a bottom view showing a state before mounting the mounting structure of the bumper of FIG. 1;

FIG. 6 is a side view showing a state where a bumper is attached.

FIG. 7 is a sectional view of a main part showing a conventional mounting structure of a bumper.

[Explanation of symbols]

 Reference Signs List 10 bumper fascia (bumper) 10a rib 10b inclined surface 14 undercover (covers) 14b bent portion 16 fender protector (covers) 16b bent portion 20 bolt (coupling member)

Claims (4)

[Claims] 1. A bumper mounting structure for mounting a lower end of a bumper to covers disposed below a vehicle body, wherein a rib extending along a mounting portion of the bumper is provided on a lower surface of a lower end of the bumper, and the rib of the bumper is provided. It is possible to attach the lower end of the bumper to the cover by superimposing the tip of the cover on the inside of the vehicle from below the bumper and joining this overlapped portion with a coupling member inserted from below the tip of the cover. Characteristic bumper mounting structure. 2. The bumper mounting structure according to claim 1, wherein a tip of the cover has a bent portion which is bent upward when the bumper is not mounted. 3. The mounting of the bumper according to claim 2, wherein when the bending portion is connected by a connecting member, the bending is eliminated along the bumper, and the bumper is mounted at a position where the tip of the cover contacts the rib. Construction. 4. The bumper mounting structure according to claim 1, wherein a side wall of the rib on the vehicle exterior side has an inclined surface that is gradually inclined toward the vehicle interior toward the top of the rib.