JP2540642Y2 - Car bumper support 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 structure for supporting a bumper of an automobile, and more particularly, to fix both ends of a bumper face extending from a front portion or a rear portion to both sides of the vehicle body via clips attached to a fender portion of the body. To a bumper support structure for an automobile.

[0002]

2. Description of the Related Art A front bumper or a rear bumper made of a synthetic resin of an automobile is fixed so that both right and left ends thereof are smoothly connected to a fender portion of a body. Conventionally, to fix both ends of the bumper face, a method of directly fixing the bumper face to a body via a cushioning member that absorbs the impact of a collision or a method of fixing the bumper face through a chestnut attached to the body has been adopted.

[0003]

Incidentally, if there is a step between the both ends of the bumper face and the body, the appearance is affected, so that it is necessary to accurately position the bumper face when mounting the bumper face. In particular, the positioning of the bumper face in the lateral direction of the vehicle is important to prevent the occurrence of a step with the fender part, and the positioning of the bumper face in the vertical direction is performed by removing the gap between the lower edge of the fender part and the upper edge of the bumper face. It is important to keep it constant.
On the other hand, the positioning of the bumper face in the front-rear direction of the vehicle body is not important from the viewpoint of appearance. Rather, it is desirable that a change in the position of the bumper face in the front-rear direction be allowed to absorb dimensional errors and mounting errors.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a bumper support structure for a vehicle which can accurately and easily position both ends of a bumper face with respect to a body.

[0005]

In order to achieve the above-mentioned object, the present invention provides a method for connecting both ends of a bumper face extending from a front portion or a rear portion to both sides of a vehicle body through clips attached to a fender portion of the body. A bumper support structure for an automobile fixed to a body , comprising: a mounting bracket having both ends of the bumper face extending substantially horizontally toward the inside of the vehicle body; and an elongated hole formed in the mounting bracket in the front-rear direction of the vehicle. clip, a support plate for supporting the lower surface of the mounting bracket, a holding pawl for positioning the bumper face in the vertical direction across the mounting bracket between the supporting plate, engage in a part of the long hole The locking claw that positions the bumper face
And an elastically deformable locking piece having the end, the locking piece
Urges the locking claw in the direction of engagement with the long hole with elasticity of
This is a first feature.

[0006]

[0007] The present invention provides, in addition to the first feature described above,
A second feature is that the clip is provided with a mounting portion inserted into an opening formed in a fender portion of the body, and the clip is fixed to the body by screwing a fixing bolt into the mounting portion and expanding the mounting bolt. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

1 to 6 show an embodiment of the present invention. FIG. 1 is an overall perspective view of an automobile, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 3 is a main beam and an upper beam. 4, FIG. 4 is a sectional view taken along line 4-4 of FIG. 1, FIG. 5 is a view taken along line 5-5 of FIG. 4, and FIG. 6 is a perspective view of the clip mounting portion.

FIG. 2 shows a cross section of a rear bumper B of the automobile V shown in FIG. 1. The rear bumper B mainly includes a main beam 1, an upper beam 2, a bumper face 3, a cushioning member 4, and an elastic member. It is composed of each member of the member 5.

As is apparent from FIG.
The main beam 1 is a box-shaped strength member disposed in the left and right direction at the rear of the vehicle body. A pair of left and right mounting brackets 6 projecting forward from the front end surface of the main beam 1 8 and a welding nut 9 for support. The upper beam 2 is a U-shaped member disposed in parallel with the upper part of the main beam 1 and has four welding bolts 10 and four nuts 11 fixed so as to face the front of the vehicle body. Frame 1
Of forming two vertically is fastened to the long hole 12 _1.

A bumper face 3 having a U-shaped cross section is integrally formed of synthetic resin so as to cover the main beam 1 and the upper beam 2, and a pair of right and left brackets projecting from the lower surface of the main beam 1 below the lower portion. 13, while being fixed with a tapping screw 14, the upper part is superimposed on the upper surface of the upper beam 2,
It is fastened by a welding nut 15 fixed to the inner surface of the upper beam 2 and a bolt 16. And the main beam 1
Between the rear surface and the inner surface of the bumper face 3, a buffer member 4 made of a soft synthetic resin supported along the main beam 1 is arranged, and the shock of the collision is absorbed by the elastic deformation of the buffer member 4. Incidentally, a resin clip can be used in place of the tapping screw 14, the welding nut 15 and the bolt 16.

As is apparent from FIG. 3, the main beam 1
The two brackets 17 protruding from the upper surface of the pair and the two brackets 18 protruding downward from the upper beam 2 are connected by a pair of left and right elastic members 5. The elastic member 5 is made of a synthetic resin in the shape of a strip. The lower end of the elastic member 5 is fixed to the bracket 17 of the main beam 1 with a bolt 19 and a welding nut 20, and the upper end of the elastic member 5 is fixed to the bracket 18 of the upper beam 2. 21 and a welding nut 22. The elastic member 5 has a central portion in the longitudinal direction slightly curved toward the rear of the vehicle body in a free state,
In the mounted state, it is compressed in the up-down direction and bends more than in the free state. Thus the elastic restoring force of the elastic member 5 in the mounting state is transmitted to the main beam 1 and the upper beam 2 through the subsequent projection 5 ₁ projecting from the upper and lower portions of the surface, 5 _2, upper with respect to the main beam 1 Acts to push up the beam 2 upward.

The body 2 located above the rear bumper B
Rubber spacers 24 are mounted at predetermined intervals on the lower edge of 3. By contacting the upper edge of the bumper face 3 with the spacer 24, a constant gap δ is formed between the lower edge of the body 23 and the upper edge of the bumper face 3.

Next, a support structure at both left and right ends of the bumper face 5 will be described with reference to FIGS.

The left and right ends of the bumper face 3 are supported by the fenders of the body 23 using clips 25. The clip 25 is a member integrally formed of nylon.
A rectangular opening 23 ₁ is formed in 3 toward the outside of the vehicle body while interposing a sponge spacer 27 inside the insert. A bolt hole 29 into which the fixing bolt 28 is screwed is formed at the center of the mounting portion 26, and a pair of left and right grooves 30 is continuously formed along the bolt hole 29. Together with the rib 26 ₁ each three of the upper and lower surfaces of the mounting portion 26 is parallel to protrude with the bolt hole 29, locking the front and rear surfaces of the mounting portion 26 which engages with the edge the opening 23 ₁ Nail 2
6 ₂ is projecting.

The clip 25 has a plate-shaped main body 31 opposed to the body 23 with a spacer 27 interposed therebetween, and three projections 31 abutting on the body 23 are provided on the inner surface of the main body 31.
₁ is formed. The support plate 32 extending substantially horizontally from the upper edge of the main body 31 toward the outside of the vehicle body is connected to the main body 31 and reinforced by _two reinforcing plates 312 whose lower surfaces form a triangle. A pair of front and rear holding claws 3 are provided on the upper surface of the support plate 32.
3 is formed, the mounting bracket 3 ₁ projecting from substantially horizontally inwardly from the side upper edge of the bumper face 3 between the support plate 32 and its retaining claws 33 are clamped. The engaging piece 35 which projects upward claws 35 ₁ to the tip by the notch 34 of the U-shape in the central portion of the support plate 32 is formed. On the other hand, wherein the mounting bracket 3 ₁ of the bumper face 3, the locking claw 35 ₁ is engageable long holes 3 ₂ is bored in the longitudinal direction of the vehicle body.

Next, the rear bumper B having the above-described structure is provided.
Will be described.

Prior to assembling the bumper face 3, the main beam 1 with the cushioning member 4 attached to the rear surface is fixed to the body frame 7 via the bracket 6,
A spacer 24 is mounted on the side in advance. On the bumper face 3 side, an upper beam 2 in which a pair of elastic members 5 are fixed to a bracket 18 in advance by bolts 21 and welding nuts 22 is fixed by bolts 16 and welding nuts 15.

Meanwhile, inserting the mounting portion 26 of the clip 25 into the opening 23 ₁ formed in the fender portion of the body 23,
The locking claws 26 ₂ of the front and rear is elastically deformed temporarily stop clip 25 by causing overcome the opening 23 ₁ of the edge. Subsequently, when the fixing bolt 28 is screwed into the bolt hole 29, the mounting portion 26 is pushed up and down by the action of the groove 30, and each of the three ribs 26 ₁ formed on the upper and lower surfaces thereof forms the opening 23 ₁ of the body 23. The clip 25 is fixed by cutting into the edge. At this time, by the three projections 31 ₁ projecting from the inner surface of the main body portion 31 abuts against the body 23, the clip 25 is positioned in the lateral direction of the vehicle body.

Subsequently, the bumper face 3 is put on the main beam 1 from behind, and the lower part thereof is
At 4, the main beam 1 is fixed to the bracket 13. At this time, passed through the long hole 12 ₁ of the welding bolt 10 is formed on the body frame 12 which protrudes from the upper beam 2 in front, temporarily tightened loosely with a nut 11. When the lower ends of the pair of elastic members 5 are fixed to the bracket 17 on the upper surface of the main beam 1 with the bolts 19 and the welding nuts 20 from this state, the elastic members 5 are contracted vertically and bent rearward. At this time, since the main beam 1 is firmly fixed to the body frame 7, the upper beam 2 is pushed upward by the elastic restoring force of the elastic member 5. As a result, the upper portion of the bumper face 3 integrally fixed to the upper beam 2 is also pushed upward, and presses against the lower surface of the spacer 24 mounted on the body 23. Accordingly, the welding bolt 1 through the elongated hole 12 ₁ of the body frame 12 from the state
If the upper beam 2 is fixed by screwing the nut 11 into the upper portion 0, the gap δ between the lower edge of the body 23 and the upper edge of the bumper face 3 has a certain size determined by the thickness of the spacer 24. And the appearance of the rear bumper B is improved.

On the other hand, the mounting bracket 3 ₁ formed in the right and left ends of the bumper face 3 is inserted between the support plate 32 and the pressing claw 33 of the clip 25. At that time, the engaging piece 35 to permit the insertion of the mounting bracket 3 ₁ elastically deformed downward by the action of notch 34. When the mounting bracket 3 ₁ is inserted to the base of the retainer claw 33, the locking piece 35 is restored to its original position by its own elastic, elongated holes 3 ₂ claws 35 ₁ mounting bracket 3 ₁ of the tip Engages. And Thus, with the mounting bracket 3 the _first bumper face 3 is positioned by being sandwiched in the vertical direction between the support plate 32 and the holding claw 33, the lateral direction of the vehicle body by the engagement of the locking claw 35 ₁ and elongated hole 3 ₂ The step and the gap between the bumper face 3 and the body 23 are precisely controlled. Moreover the longitudinal direction of the vehicle body dimensional errors and mounting errors no particular influence on the appearance can be absorbed by the action of the slot 3 ₂ engaging claw 35 _1.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the present invention described in the claims for utility model registration. It is possible to make design changes.

For example, the structure for fixing the clip 25 to the body 23 is not limited to the embodiment, and can be changed as appropriate. In the embodiment, the upper portion of the bumper face 3 is indirectly pressed against the lower portion of the body 23 via the rubber spacer 24. However, the rubber spacer 24 is not essential, and the bumper face 3 is attached to the body 23. It may be directly pressed against. In this case, the spacer can be integrally formed on the bumper face 3 side or the body 23 side.
Further, the elastic member 5 is not limited to a synthetic resin, but may be a metal. The present invention is also applicable to a front bumper of an automobile.

[0025]

As described above, according to the first feature of the present invention, the mounting bracket of the bumper face is sandwiched between the support plate of the clip mounted on the body and the holding claw to perform vertical positioning, Since the locking claws of the clip are engaged with the long holes of the mounting bracket to position the vehicle body in the left-right direction, the steps and gaps between the bumper face and the body are automatically regulated to a predetermined size, and The performance is improved. In addition, since the position of the bumper face in the vehicle longitudinal direction which does not particularly affect the appearance has a predetermined degree of freedom due to the action of the locking claw and the long hole, the dimensional error and the mounting error can be absorbed at that portion.

In particular, the positioning of the vehicle in the lateral direction should be performed.
The locking claw is clipped to engage the elongated hole ku mounting bracket
Because it is formed at the tip of the elastically deformable locking piece,
The engaging claw can be engaged with the elongated hole by a simple operation of only elastically deforming the engaging piece, and the mounting bracket of the bumper face can be fixed to the clip.

According to the second feature of the present invention, the operation of attaching the clip to the body is as simple as inserting the clip attaching portion into the opening formed in the fender portion of the body and screwing in the fixing bolt. Can be done with

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an automobile.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an exploded perspective view showing a combined state of a main beam and an upper beam.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 1;

FIG. 5 is a view taken along line 5-5 in FIG. 4;

FIG. 6 is a perspective view of a clip mounting portion.

[Explanation of symbols]

3 Bumper face 3 ₁ Mounting bracket 32 ₂ Slot 23 Body 23 ₁ Opening 25 Clip 26 Mounting section 28 ···· Fixing bolt 32 ··· Support plate 33 ··· Holding claw 35 ··· Locking piece 35 ₁ ··· Locking claw

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-89437 (JP, A) JP-A-55-31735 (JP, U) JP-A-57-108459 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] An end of a bumper face (3) extending from a front part or a rear part of a vehicle body to both sides of the vehicle body is connected to a body (2).
3) A bumper support structure for an automobile, which is fixed to a body (23) via a clip (25) attached to a fender portion of (3), wherein both ends of the bumper face (3) extend substantially horizontally toward the inside of the vehicle body. It includes a mounting bracket (3 _1), and a long hole formed in the longitudinal direction of the vehicle body (3 ₂₎ on the mounting bracket (3 _1), the clip (2
5), a support plate for supporting the lower surface of the mounting bracket (3 ₁₎ (32) and, the support plate (32) said mounting bracket (3 ₁₎ across the bumper face between a (3)
The presser pawls (33) for positioning in the vertical direction, the tip of the locking claw (35 ₁₎ for positioning the bumper face (3) engages a portion of the long hole (3 ₂₎ in the lateral direction of the vehicle body Yes
And an elastically deformable locking piece (35) to its locking
With the elasticity of the piece (35), the locking claw (35 ₁ ) is
(3 ₂₎ and characterized by being biased in a direction to be engaged,
Car bumper support structure. 2. The method of claim 1] before Symbol clip (25) body (23)
The mounting portion is inserted into the fender portion the formed opening (23 ₁₎ comprises a (26), a clip by bulge screwed fixing bolts (28) to the mounting portion (26) and (25) 2. The structure according to claim 1, wherein the structure is fixed to the body.