JPH09175292A - Bumper side part fitting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a bumper side part from damaging longitudinally adjacent body panels at the time of a collision of a bumper. SOLUTION: An engaging piece 10 protruded toward the inside of a cabin is formed at the back face of a bumper side part. A body part facing the bumper side part is provided with an engaging part 21 for engaging the engaging piece 10 so as to fit the bumper side part to the body part, and an engaging piece guide part 22 continuous with the engaging part 21 in the side part extended direction of the bumper side part and having a guide curved face 22a curved gradually toward the outside of the cabin so as to slide the engaging piece 10 in the side part extended direction toward the outside of the cabin, and a guide horizontal face 22b for horizontally regulating the sliding motion of the engaging piece 10 on the guide curved face 22a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper side portion mounting structure for mounting a bumper side portion that bends from a front portion of an automobile bumper sideways to a body.

[0002]

2. Description of the Related Art As shown in FIG. 5, a bumper side portion 1a of the front bumper 1 that bends laterally from the front portion of the bumper in the vehicle width direction has its upper surface fixed to a fender and at the time of a collision, the bumper side portion 1a The rear edge 1 of the side portion of the arch portion of the fender 2 is prevented from being deformed by the rearward movement.
For example, the portion adjacent to b is eliminated (A in the same figure), or another member 3 made of synthetic resin is attached to the fender 2 (B in the same figure). Further, according to Japanese Utility Model Laid-Open No. 61-37051, similarly, in a state in which a portion adjacent to the rear end edge 1b of the side portion is eliminated, a bumper mounting portion is attached to the fender so as not to damage the upper fender at the time of collision. A mounting structure that is detachable together with the side portion 1a and is movable rearward is also known.

[0003]

However, the detachable mounting structure of the latter is also based on the premise of eliminating the adjacent body portions, and does not consider the design of the bumper side portion.

SUMMARY OF THE INVENTION In view of the above points, an object of the present invention is to provide a mounting structure for a bumper side portion so that the bumper side portion will not damage the front and rear body panels when the bumper collides.

[0005]

In order to achieve this object, the present invention forms an engaging piece projecting toward the passenger compartment in the back surface of the bumper side portion, and also has a body portion facing the bumper side portion. An engaging portion that engages the engaging piece so that the bumper side portion is attached to the body portion, and a side portion extending direction in which the bumper side portion extends to the engaging portion,
Also, an engaging piece having a guide curved surface that gradually bends toward the outside of the vehicle so that the engaging piece faces the extension direction of the side and slides toward the outside of the vehicle compartment and a guide horizontal surface that horizontally restricts the sliding of the engaging piece on the guide curved surface A guide part is provided.

The bumper side portion is attached by engaging the engaging piece with the engaging portion. When the bumper side portion moves in the extension direction at the time of a collision, the engaging piece disengages from the engaging portion, secures a horizontal position along the guide horizontal surface and the guide curved surface, and gradually slides toward the outside of the vehicle compartment. The rear edge is prevented from colliding with the adjacent body portions in the side portion extension direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A steel front bumper for an automobile according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. On the back surface of the front bumper side portion 1a, there is provided an engaging piece 10 made of synthetic resin, in which a base portion 11 projects toward the vehicle interior and an engaging portion 12 having a T-shaped cross section is formed which bulges up and down at a tip end thereof. The pawl 19 at the stop position is engaged with a screw seat on the rear surface of the bumper side and screwed. Fender 2
In the normal position, the engaging piece 10 is attached to the arch lower end portion 2b.
An engaging portion 21 formed as an engaging groove that engages with each other to support the bumper side portion 1a, and an engaging piece guide portion 22 that is continuous with the engaging portion in a side portion extending direction in which the bumper side portion 1a extends. A bumper mounting portion 20 including is provided. That is, the claws on the back surface of the bumper attaching portion 20 are engaged with the screw seats 29a of the lower end portion 2b of the arch and screwed from the screw grooves 29.

The engaging portion 21 has an inlet 21a for allowing the engaging portion 12 to be engaged at the time of mounting, and is L for engaging.
It has a letter-shaped wall portion 21b. This wall portion has a curved surface near the entrance so that the engagement portion 12 can be easily engaged.

The engaging piece guide portion 22 is continuous with the bottom surface 21c of the engaging portion 21 and is pushed to the outside of the vehicle compartment when the engaging portion 12 moves in the extension direction of the side portion of the bumper side portion 1a. It has a guide curved surface 22a that gradually bends toward the outside of the vehicle toward the extension direction, and upper and lower guide horizontal surfaces 22b that horizontally restrict the movement in the extension direction of the side portion.

On the other hand, the bumper side portion 1a has an engaging piece 10a.
Is formed wider than the projecting portion provided with, and the rear end edge 1b of the side portion of the upper portion 1c is provided with the gap 9
And is adjacent to the arch portion 2a of the fender 2.
The degree of bending of the guide curved surface 22a is set so as to move toward the outside of the vehicle by at least the thickness of the side portion rear end edge 1b while the side portion rear end edge 1b moves rearward by the size of the gap 9. ing.

When the front bumper 1 is mounted, the bumper side portion 1a has the engaging piece 10 in the engaging portion 21 and the inlet 2 thereof.
1a is engaged and supported (FIGS. 3A and 3C). When the front bumper 1 has a collision accident from the front and the bumper side portion 1a moves rearward, the engagement portion 12 is disengaged from the engagement portion 21 and the vertical displacement is suppressed by the guide horizontal surface 22b. It gradually slides toward the outside of the vehicle along the guide curved surface 22a (FIGS. 3B and 3C). As a result, the side portion rear end edge 1b moves toward the outside of the vehicle compartment while approaching the adjacent arch portions 2a, and collision with the fender 2 is avoided (FIG. 3D).

According to the present invention, the engagement piece is formed on the rear surface of the rear bumper side portion, and the engagement piece guide portion that bends toward the outside of the vehicle toward the front of the vehicle is provided on the quarter panel of the body facing the rear bumper side portion. By providing the bumper attaching portion having the engaging portion and the engaging portion, the present invention can be applied to the rear bumper so that the quarter panel can be prevented from being damaged when the rear bumper collides from the rear. The same applies to resin bumpers.

As shown in FIG. 4, the engaging portion 31 of the bumper attaching portion 30 of the body portion is formed in a T shape, and the engaging piece of the bumper side portion is formed in a groove shape so that the upper and lower guide horizontal surfaces 32b are formed. An embodiment in which it is formed in a rail shape at an intermediate position of the guide curved surface 32a is also conceivable.

[0014]

As described above, according to the present invention, since the bumper side portion is pushed out toward the outside of the vehicle compartment at the time of collision with the bumper,
Collision of its edges with adjacent body parts is avoided. Therefore, even if the body panels are adjacent to each other, damage to the body panels can be prevented, so that the degree of freedom in designing the body panels around the bumper side portion is increased.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mounting structure of a bumper side portion according to an embodiment of the present invention.

FIG. 2 is a perspective view around the bumper side portion.

[Fig. 3] Fig. 3 shows an operating state of the mounting structure.
1 is a sectional view taken along line AA of FIG. 1, FIG. B is a sectional view taken along line BB, FIG. C is a sectional view taken along line C-C, and FIG. D is a sectional view taken along line DD of FIG.

FIG. 4 is a perspective view of a main portion of a bumper side portion mounting structure according to another embodiment.

FIG. 5 is a perspective view around a conventional bumper side portion.

[Explanation of symbols]

 1a Bumper side part 1b Rear end face 2 Fender 9 Gap 10 Engaging piece 21, 31 Engaging part 22 Engaging piece guide part 22a, 32a Guide curved surface 22b, 32b Guide upper and lower surfaces

Claims (1)

[Claims] 1. A mounting structure of a bumper side portion for mounting a bumper side portion bending laterally from a front portion of a bumper to a body, wherein an engaging piece projecting toward a vehicle interior is formed on a back surface of the bumper side portion. Along with the body portion facing the bumper side portion, an engaging portion for engaging the engagement piece so as to attach the bumper side portion to the body portion, and a side where the bumper side portion extends to the engaging portion. Slide in the guide curved surface of the guide curved surface and the guide curved surface that are continuous in the direction of the vehicle extension and that gradually bend toward the outside of the vehicle so that the engagement piece slides in the direction of the side extension. And an engaging piece guide portion having a guide horizontal surface for horizontally regulating the side of the bumper.