JPH0810030Y2 - Vehicle bumper mounting structure - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a vehicle bumper mounting structure.

b. Conventional technology The bumper has the main purpose of protecting functional parts such as the vehicle body and lamps when the vehicle comes into contact with other vehicles and objects, but also has a large role in improving aerodynamic performance and as a design part. The general structure consists of a bumper bar, bumper cover, and bumper side, but also a bumper cover and bumper side integrated, or even a soft fayer type with an apron and grill integrated. is there.
There are also those with a molding or overrider attached to the bumper bar.

The mounting structure of these bumpers will be described based on the front bumpers shown in FIGS. 3 and 4. A front bumper (hereinafter referred to as “bumper”) 101 is provided so as to project in front of a vehicle 102. Reference numeral 101 denotes a bumper fascia 103 covering the surface thereof, an energy absorbing member 104 such as a low-pressure urethane foam or a resin block inserted into the bumper fascia 103, and a bumper fascia 1
03 and a bumper armature 105 that reinforces the energy absorbing member 104, the bumper armature 105 is fixed to a chassis frame 106 of the vehicle by a mounting bracket 107, and the bumper fascia 103 is also a mounting bracket 1
It is fixed to the above bumper armature 105 by 08.

This mounting structure will be described in detail with reference to FIG. 4, which is an enlarged perspective view of an essential part. The mounting bracket 107 for fixing the bumper armature 105 to the chassis frame 106 is an L-shaped bracket as shown in FIG. The bracket 107 is provided with ribs 107a and b for reinforcement so as to project upward and downward. One mounting surface 107c of the mounting bracket 107 is welded and fixed to the back surface of the bumper armature 105, and the other mounting surface 107d is provided with a hole 110 into which a mounting bolt 109 can be fitted. Bumper armature 1
05 is mounted by fitting the mounting bolt 109 into the hole 110 and screwing it into the chassis frame 106. Also,
Bracket 108 for mounting bumper fascia 103
4 is a Z-shaped bracket as shown in FIG. 4, and ribs 108a and 108b for reinforcement are also provided on the left and right sides thereof.
The upper surface 108c of the bracket 108 is attached to the bumper armature 1
It is attached to the bumper armature 105 in a Z shape when viewed from the side by welding and fixing it to the bottom surface of 05, and a perforation 112 into which a mounting screw 111 can be fitted is bored on the lower surface thereof, and the bumper fascia 103 is attached to the mounting screw 111 described above. Fixed to the bumper armature 105 by.

c. Problem to be Solved by the Invention However, in the above-described conventional vehicle bumper mounting structure, the width of the bracket 107 is restricted by the height dimension of the bumper armature 105, and the height dimension of the chassis frame 106 is large. However, the size A shown in FIG. 4 cannot be made large, and the bumper armature 105 is not sufficiently fixed to the chassis frame 106.

Also, the bumper armature 105 of the bumper fascia 103
It was also weak against the force in the B direction shown in FIG.

The present invention has been made in view of the above-mentioned problems of the conventional technology.

d. Means for Solving the Problems In order to solve the above problems, the gist of the present invention consists of a bumper fascia and a bumper armature that reinforces the bumper fascia. In a vehicle bumper mounting structure, the opposed bumper armatures are fixed to the chassis frame by a first bracket, and the bumper fascia is fixed to a bumper armature by a second bracket.
The first bracket is a bracket having an L-shaped plane cross section, and an upper flange and a lower flange that are bent in opposite directions are provided on an upper portion and a lower portion of the first bracket. The rear surface of the bumper armature and the side surface of the chassis frame of the vehicle are in surface contact with each other, and the upper flange is in surface contact with the upper surfaces of the bumper armature and the chassis frame, and the second bracket is a U-shaped bracket. , The second
The upper surface of the bracket is in surface contact with the rear surface of the bumper armature and the lower flange of the first bracket, and the vertical surface of the second bracket is the side surface of the chassis frame and the lower surface thereof is the bumper fascia. The first and second brackets configured to come into surface contact are used for mounting.

e. Embodiment Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Here, FIG. 1 is a side view showing a part of the vehicle, and FIG. 2 is an enlarged perspective view of an essential part showing a mounting structure of a vehicle bumper.

In the figure, reference numeral 1 is a vehicle, and 2 is a front bumper provided so as to project in front of the vehicle 1. The front bumper 2 includes a bumper fascia 3 covering the surface thereof, an energy absorbing member 4 such as low-pressure foamed urethane foam or a resin block inserted into the bumper fascia 3, the bumper fascia 3 and the energy absorbing member 4. And a bumper armature 5 to be reinforced. The bumper armature 5 is fixed by a mounting bracket 7 with its rear surface facing the front end surface of the chassis frame 6 of the vehicle, and the bumper armature 3 is mounted by the mounting bracket 8 on the bumper armature 5. It is fixed at 5.

This mounting structure will be described in detail with reference to FIG. 2 which is an enlarged perspective view of an essential part. A mounting bracket 7 for fixing the bumper armature 5 to the chassis frame 6 has a rear surface as shown in FIG. The mounting bracket 7 for fixing the bumper armature 5 facing the surface to the chassis frame 6 is a first bracket having an L-shaped plane cross section, as shown in FIG. An upper flange 7a and a lower flange 7b, which also serve as reinforcements, are provided so as to be bent in mutually opposite directions and project in mutually opposite directions so as to have a Z-shaped vertical cross section.
One mounting surface 7c and the flange 7a of the mounting bracket 7 are welded and fixed to the rear surface and the upper surface of the bumper armature 5, and the other mounting surface 7d is provided with a hole 10 into which a mounting bolt 9 can be fitted. . The mounting bracket 8 for fixing the bumper fascia 3 is a U-shaped bracket as shown in FIG. 2, and ribs 8a, b for reinforcement are provided on both sides of the bracket 8. The upper surface 8c of the bracket 8 is welded and fixed to the rear surface of the bumper armature 5 and the flange 7b of the bracket 7, and the mounting screw 11 is attached to the lower surface 8d.
A hole 12 into which the bumper armature 5 can be fitted is formed, and the bumper fascia 3 is fixed to the bumper armature 5 by the mounting screw 11. Further, the vertical surface 8e of the bracket 8 is provided with a hole 14 into which the mounting bolt 13 can be fitted, and the mounting bolt 9 is fitted into the hole 10 formed in the bracket 7 and is also drilled in the bracket 8. The bumper armature 5 is fixed to the chassis frame 6 by fitting the mounting bolt 13 into the hole 14 and screwing the mounting bolt 13 into the chassis frame 6.

As described above, in the vehicle bumper mounting structure according to the present invention, the bracket 7 for fixing the bumper armature 5 to the chassis frame 6 is an L-shaped bracket, and the upper and lower portions of the first bracket are opposite to each other. An upper flange and a lower flange bent in a direction are provided so that the bracket 7 is in surface contact with the back surface of the bumper armature 5 and the side surface of the chassis frame 6 of the vehicle, and the upper flange 7a of the first bracket 7 is Since the upper surface of the bumper armature 5 and the upper surface of the chassis frame 6 are also in surface contact with each other, the bumper armature 5
When mounting, the flange 7a of the bracket 7 welded and fixed to the bumper armature 5 is attached to the chassis frame 6
By mounting the bumper armature 5 on the upper surface of the bumper armature 5, the positioning accuracy of the bumper armature 5 with respect to the chassis frame 6 is improved.

Further, the bracket 8 for fixing the bumper fascia 3 to the bumper armature 5 is a U-shaped bracket so that the upper surface 8c of the bracket 8 has a lower flange provided on the back surface of the bumper armature 5 and the bracket 7. 7B and the vertical surface 8e of the bracket 8 is in surface contact with the side surface of the chassis frame 6, so that the contact portion is welded or bolted, and in FIG. The structure is extremely strong against the directional force, and the bumper fascia 3 is firmly fixed.

In addition, the chassis frame 6 of the bumper armature 5
Can be fixed to both the bracket 7 and the bracket 8 described above. When bolting, the dimension A shown in FIG. 2 can be increased, and the bumper armature 5 can be attached to the chassis frame 6 by a large amount. Will be fixed enough.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications and changes can be made based on the technical idea of the present invention.

For example, although the front bumper 2 is described in the above embodiment, the same can be applied to the rear bumper. Further, the energy absorbing member 4 is not always necessary as a component part of the bumper, and any bumper composed of at least the bumper fascia 3 and the bumper armature 5 for reinforcing the bumper fascia 3 is a target of the present invention. It will be.

f. Effect of the Invention In the vehicle bumper mounting structure according to the present invention, as described above, the first bracket for fixing the bumper armature to the chassis frame is an L-shaped bracket, and the upper and lower parts of the first bracket. The upper and lower flanges that are bent in opposite directions are provided on the
Since the first bracket is configured to be in surface contact with the back surface of the bumper armature and the side surface of the chassis frame of the vehicle, and the upper flange is also configured to be in surface contact with the upper surfaces of the bumper armature and the chassis frame, when the bumper armature is mounted, By mounting the upper flange of the first bracket, which is welded and fixed to the bumper armature, on the upper surface of the chassis frame, the positioning becomes possible, and the positional accuracy of the bumper armature with respect to the chassis frame is improved.

Further, the second bracket for fixing the bumper fascia to the bumper armature is a U-shaped bracket so that the upper surface of the second bracket is the lower surface provided on the back surface of the bumper armature and the first bracket. Of the second bracket and the vertical surface of the second bracket are in surface contact with the side surface of the chassis frame. For example, by welding or bolting the contact portion, The structure is extremely strong against rearward force, and the bumper fascia is firmly fixed.

Further, the bumper armature can be fixed to the chassis frame by both the first bracket and the second bracket which are in surface contact with the side surface of the chassis frame, and the mounting area can be increased. Fixing the bumper armature to the chassis frame is sufficient.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a side view showing a part of a vehicle, and FIG. 2 is an enlarged view of a main part showing a mounting structure of a vehicle bumper. It is a perspective view. Third
FIG. 4 and FIG. 4 are views showing a conventional mounting structure.
FIG. 4 is a side view showing a part of a vehicle, and FIG. 4 is an enlarged perspective view of an essential part showing a mounting structure of a vehicle bumper. 1 ... Vehicle, 2 ... Front bumper, 3 ... Bumper fascia, 4 ... Energy absorption member, 5 ... Bumper armature, 6 ... Chassis frame, 7 ... Bracket (first bracket), 7a ... Upper flange, 7b ... Lower flange, 8
... Bracket (second bracket), 8c ... Top surface, 8d ... Bottom surface, 8e ... Elevation surface, 9,13 ... Mounting bolts, 10,12,14 ... Hole holes, 11
… Mounting screw.

Claims (1)

[Scope of utility model registration request] 1. A bumper armature comprising a bumper fascia and a bumper armature that reinforces the bumper fascia, the bumper armature having a rear surface facing a front end surface of a chassis frame of a vehicle is fixed to the chassis frame by a first bracket, In a vehicle bumper mounting structure in which the bumper fascia is fixed to a bumper armature by a second bracket, the first bracket is a bracket having an L-shaped plane cross section, and the first bracket is provided at an upper portion and a lower portion. An upper flange and a lower flange bent in opposite directions are provided, the first bracket is in surface contact with the back surface of the bumper armature and the side surface of the chassis frame of the vehicle, and the upper flange is provided with the bumper armature and the chassis frame. The second bra, which is configured to be in surface contact with the upper surface, The Tsu door to the bracket of U-shape,
The upper surface of the second bracket is in surface contact with the rear surface of the bumper armature and the lower flange of the first bracket, and the vertical surface of the second bracket is the side surface of the chassis frame and the lower surface thereof is the bumper. A mounting structure for a vehicle bumper, characterized in that it is mounted by means of first and second brackets configured so as to be in surface contact with a fascia.