JP2002036982A - Bumper fascia for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bumper fascia for a vehicle capable of easily reinforcing by integrally forming a reinforcing body without enlarging or complicating a mold. SOLUTION: A reinforcing body 3 is integrally formed utilizing an aperture 2 of a bumper fascia 1 with a thin-wall hinge 10. After molding, the reinforcing body 3 is pivoted about the thin-wall hinge 10 and connected to a fascia rib 4. Since the fascia rib 4 is enhanced in a positional accuracy to a car body 9 by this reinforcing body 3, mounting work at a fastening part 8 becomes easy. Molding of the bumper fascia 1 including the reinforcing body 3 can also be conducted by a die which has the same size and simple structure as that of the bumper fascia 1 only.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin bumper fascia having a reinforcing member and manufactured by integral molding.

[0002]

2. Description of the Related Art In recent years, many bumpers for vehicles employ a bumper fascia formed integrally with resin on the outer surface. Since such a bumper fascia is required to be lightweight and high-strength, it has been practiced to reduce the thickness of the bumper fascia itself and to provide ribs, reinforcing members, and the like.

In Japanese Utility Model Laid-Open Publication No. 3-78656, a plurality of vertical ribs are provided on a front bumper face inclining with respect to the traveling direction of a vehicle, and only front portions of upper and lower sides of the vertical ribs are connected to a bumper facer body. A disclosed front bumper fascia structure is disclosed.

Japanese Utility Model Laid-Open No. 4-130563 discloses a bumper side support structure in which a bracket and a bumper side are connected by a stay in an automobile in which both ends of a main body of the bumper are fixed to a vehicle body via brackets. ing.

Japanese Unexamined Patent Publication No. Hei 8-58496 has a purpose of preventing a coating film from being cracked due to chipping. However, a concealing member for covering the back surface of the bumper fascia body is provided on the back surface of the body, and the concealing member is provided via a thin hinge. A rear bumper is disclosed which is rotatably connected to a lower end of a bumper facer main body and is formed so as to hang below a lower end of the main body.

[0006]

However, the above technique has the following problems.

In the technique disclosed in Japanese Utility Model Laid-Open Publication No. 3-78656, since the structure is complicated, a molding die is also complicated, and the cost is increased.

In the technique disclosed in Japanese Utility Model Laid-Open No. 4-130563, only the side is reinforced.
It is necessary to separately prepare a stay, and a step of attaching the stay is also separately required, which increases the manufacturing cost and the number of steps.

In the technique disclosed in Japanese Patent Application Laid-Open No. Hei 8-58496, it is necessary to provide a concealing member over substantially the entire width in the vehicle width direction and to cover the entire rear surface of the rear bumper. Therefore, a larger mold is required than when only the bumper fascia is used.

The present invention has been made in view of such circumstances, and an object of the present invention is to form a reinforcing member integrally without increasing the size and complexity of a mold so that reinforcement can be easily performed. An object of the present invention is to provide a bumper fascia for a vehicle which can be performed at low cost.

[0011]

In order to achieve the above object, a reinforcing member is integrally formed at an opening of a bumper facer via a thin hinge.

Specifically, the invention according to claim 1 is a resin bumper fascia for a vehicle, which has an opening, is provided with a fascia rib and a reinforcing body, and forms an outer surface of the bumper. The fascia rib is formed integrally with the bumper fascia rear surface so as to protrude toward the vehicle body at a predetermined distance from the periphery of the opening, and the reinforcing body is opened via a thin hinge provided on the periphery of the opening. A bumper fascia for a vehicle, wherein the bumper fascia is integrally formed in a portion and is connected to the fascia rib by rotating the thin hinge around an axis.

With such a configuration, the reinforcing member is integrated with the bumper facer through the thin hinge in the opening, and the reinforcing portion can be formed into a shape that can be formed by the forming die of the bumper facer. The reinforcing body can be integrally formed with a simple structure mold having the same size as the case without the body.
In addition, since the bumper fascia body and the reinforcing body can be simultaneously formed, the number of molds and processes can be reduced, and the cost can be reduced. Since the reinforcing member can be rotated by the thin hinge, the reinforcing member can be easily attached to the bumper facer body.

Next, the invention according to claim 2 is based on claim 1.
The bumper fascia for a vehicle according to (1), wherein a reinforcing rib perpendicular to the axial direction of the thin hinge is integrally formed on the reinforcing body.

With such a configuration, the strength of the reinforcing member can be improved with a simple structure.

Next, the invention according to claim 3 is based on claim 1.
The bumper facer for a vehicle according to any one of claims 1 to 3, wherein a contact portion is formed on the face rib side of the reinforcing member, the contact portion being in contact with the face rib and restricting a vertical projection angle of the face rib. Vehicle bumper fascia.

With such a configuration, the facial rib is strongly reinforced, so that the positional accuracy of the facial rib with respect to the vehicle body is improved, and the assembly to the vehicle body can be easily performed.

Next, the invention according to claim 4 relates to claims 1 to
In 3, the bumper fascia is a front bumper fascia, and the opening is an air vent.

Since the front bumper facer is provided with a ventilation hole, if this is used, the reinforcing member can be easily integrally formed without forming an additional opening.

Next, the invention according to claim 5 is the invention according to claim 1.
In the above-described embodiments, the fascia rib has an extended portion extending to the vehicle body, and a fastening portion for attaching the fascia rib to the vehicle body is formed in the extended portion, and the fascia rib and the reinforcing member in the vehicle width direction are formed. And the reinforcing member is displaced to the fastening portion side in the vehicle width direction and connected to the fascia rib at one place.

With such a configuration, when the fascia rib receives a force in the longitudinal direction of the vehicle body, the reinforcing member efficiently reinforces and the strength and durability of the bumper fascia as a whole are improved. When there are a plurality of fastening portions, the coupling position between the reinforcing member and the fascia rib may be shifted with respect to the nearest fastening portion.

[0022]

Since the present invention has the above-described structure, the following effects can be obtained.

Since the reinforcing member is integrally formed in the opening of the bumper fascia body, a mold having the same size as that of the conventional one and having a simple structure is sufficient, and the bumper fascia body and the reinforcing body are simultaneously formed. As a result, the cost is reduced, and the time required for manufacturing is also reduced.

Since the reinforcing rib is integrally formed with a reinforcing rib perpendicular to the thin hinge axis direction, the strength of the reinforcing body is improved.

Since the reinforcing member is firmly held in contact with the facial rib, the positional accuracy of the facial rib with respect to the vehicle body is improved, and the assembling work on the vehicle body is facilitated.
Work time is reduced.

Since the ventilation holes of the front bumper fascia are used, the integral formation of the reinforcing member can be easily performed.

The joint position between the facial rib and the reinforcing member is
Since it is deviated toward the fastening portion between the facial rib and the vehicle body, the reinforcement for the facial rib is efficiently performed, and the strength and durability can be improved.

[0028]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of the bumper fascia 1. The bumper fascia 1 is for the front side of the vehicle, but can also be used for the rear side. The substantially rectangular opening 2 serves as a ventilation port. FIG. 5 shows a view from the front of the automobile. In the rear bumper facer, the opening 2 serves as a mounting hole for a license plate. FIG. 2 shows the bumper fascia 1 on the vehicle body side (left side in FIG. 1).
It is the figure of the back side seen from. FIG. 3 is a sectional view taken along line BB of FIG. FIG. 1 is a sectional view taken along line AA of FIG. FIG. 4 is a perspective view of the back side of the bumper fascia 1.

In FIG. 1, an opening 2 is provided at the center in the vertical direction of the bumper facer 1, and a fascia rib 4 and a reinforcing member 3 are provided in the bumper facer 1 below the opening 2. These are manufactured by being integrally molded with a mold. When the bumper fascia 1 is molded with a mold, the reinforcing member 3 is molded so as to be inside the opening 2 as indicated by a two-dot chain line.

The fascia rib 4 is spaced from the lower edge of the opening 2 by a predetermined distance from the back surface of the bumper fascia 1 to the vehicle body 9.
Extending towards. In this case, the facial rib 4
Is a straight line, but may be corrugated, further provided with a rib, provided with a hollow portion, or the like, for the purpose of improving strength or the like. Further, the fascia rib 4 is attached to the vehicle body 9 at the fastening portion 8.

The reinforcing member 3 is formed by a thin hinge 10 provided on a lower edge, which is one side of a peripheral edge of the opening 2, by a bumper fascia 1.
Is connected to Reinforcing ribs 5 perpendicular to the rotation axis of the thin hinge 10 are provided on the front and back of the reinforcing body 3. As shown in FIG. 4, the reinforcing ribs 5 are provided at both ends in the vehicle width direction of the reinforcing body 3 to increase the strength of the reinforcing body 3. Regarding the shape and number of the reinforcing ribs 5, the reinforcing ribs 5
Is not particularly limited as long as it is provided perpendicular to the axial direction of the thin hinge 10.

The reinforcing member 3 is moved from the position at the time of molding to the thin hinge 1.
Rotating around the axis 0 in the direction of the arrow in FIG.
Then, it comes into contact with the facial rib 4, and the facial rib 4
The vertical projection angle is regulated and kept constant. The reinforcing member 3 abuts on the fascia rib 4 at the joint 7, and the abutment 6 located at a position different from the joint 7 at the fascia rib 4.
, The reinforcement for the facial rib 4 is strengthened. Here, since the contact portion 6 is in contact with the face rib 4 with its surface, the face rib 4 can be firmly held. In FIGS. 1 to 3, the coupling portion 7 has a structure in which a hole is formed in the fascia rib 4 and a claw is provided in the reinforcing member 3 to fit therein.
A nail may be provided on each of the facial ribs 4. Also,
As long as the reinforcing member 3 and the facial rib 4 can be fixed, the coupling portion 7 may be any coupling means such as engagement between claws, welding, adhesion, and the like.

As shown in FIG. 1, when the reinforcing member 3 is integrally molded at a position inside the opening 2 shown by a two-dot chain line, the mold has the same size as that of only the bumper fascia 1 main body, and
A simple structure with only a pair of split molds is sufficient. However, when trying to obtain a state in which the reinforcing member 3 is joined to the facial rib 4 from the beginning by integral molding, the mold has a slide structure because there is a closed space surrounded by the reinforcing member 3 and the facial rib 4. Is required, which increases complexity and costs. For this reason, the structure of the present embodiment may reduce the cost of the mold.

Since the reinforcing member 3 abuts on the fascia rib 4 with the abutment portion 6 and is fixed by the connecting portion 7, the positional accuracy of the fascia rib 4 with respect to the vehicle body 9 is improved. This will be described. If there is no reinforcing member 3 and only the fascia rib 4 is provided, if the fascia rib 4 is extended for fastening to the vehicle body, the end of the fascia rib 4 on the vehicle body side is displaced upward or downward and the vehicle body 9 Does not match with the fastening portion 8, and the mounting work on the vehicle body 9 becomes very difficult. Here, if the middle of the fascia rib 4 is held by the reinforcing body 3, the positional accuracy of the tip of the fascia rib 4 is improved, and the work of attaching the fascia rib 4 to the vehicle body 9 is simplified.

Next, the relationship between the fastening portion 8 for attaching the facial rib 4 to the vehicle body 9 and the connecting portion 7 for attaching the reinforcing member 3 to the facial rib 4 will be described.

As shown in FIGS. 3 and 4, the fascia rib 4 has an extension portion 11 extending to the vehicle body 9 for attachment to the vehicle body 9. A mounting hole as a fastening portion 8 for mounting the facial rib 4 to the vehicle body 9 is formed in the extension portion 11. The force applied between the bumper fascia 1 and the vehicle body 9, for example, the force applied when the bumper fascia 1 collides is concentrated at the fastening portion 8. for that reason,
It is preferable to reinforce the reinforcing member 3 by connecting it near the fastening portion 8. However, due to the design, the opening 2 in which the reinforcing member 3 is provided and the fastening portion 8 cannot always be brought close to each other in the vehicle width direction. Therefore, the connecting portion 7 is provided so as to be deviated so as to be as close as possible to the connecting portion 8 in the vehicle width direction so that the connecting portion 8 and the connecting portion 7 which is a portion for attaching the reinforcing member 3 to the fascia rib 4 are as close as possible. ing.

If there is one connecting portion 7 for one reinforcing member 3, the reinforcing performance is sufficient. Therefore, as shown in FIG. 4, a connecting portion 7 is formed on the reinforcing member 3 so as to be deviated toward the fastening portion 8 in the vehicle width direction and connected to the fascia rib 4 at one place. Further, a plurality of coupling portions 7 may be provided for one reinforcing body 3, and it is preferable that the coupling portions 7 are deviated as a whole to the fastening portion 8 side. In FIG. 3, since the fastening portion 8 is shifted to the left side of the reinforcing body, the connecting portion 7 is positioned to the left of the reinforcing body 3. As described above, since the connecting portion 7 is deviated toward the fastening portion 8 and the reinforcing member 3 is connected to the facial rib 4, the reinforcing member 3 is not subjected to the stress on the facial rib 4 concentrated at the fastening portion 8. However, it has been reinforced efficiently and durability has been improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a bumper fascia of the present invention taken along line A-
A section view

FIG. 2 is a view of the bumper fascia of the present invention as viewed from a vehicle body side.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is a perspective view of the bumper facer of the present invention as viewed from the vehicle body side.

FIG. 5 is a front view of the automobile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bumper facer 2 Opening part 3 Reinforcement body 4 Facial rib 5 Reinforcement rib 6 Contact part 7 Connecting part 8 Fastening part 9 Body 10 Thin hinge 11 Extension part

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichiro Nakamura 3-1, Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd.

Claims (5)

[Claims] 1. A resin bumper fascia for a vehicle having an opening, comprising a fascia rib and a reinforcing body, and forming an outer surface of the bumper, wherein the fascia rib is a predetermined distance from a periphery of the opening. The reinforcing body is integrally formed in the opening through a thin hinge provided on the periphery of the opening, and is integrally formed on the rear surface of the bumper facer with a distance therebetween. A bumper fascia for a vehicle, wherein the bumper fascia is rotated to be coupled to the fascia rib. 2. The vehicle bumper according to claim 1, wherein a reinforcing rib perpendicular to an axial direction of the thin hinge is integrally formed with the reinforcing member. Fasha. 3. The bumper facer for a vehicle according to claim 1, wherein the reinforcing rib side of the reinforcing rib is in contact with the facial rib and restricts a vertical projection angle of the facial rib. A bumper fascia for a vehicle, characterized in that a bumper face is formed. 4. The vehicle bumper facer according to claim 1, wherein the bumper facer is a front bumper facer, and the opening is a ventilation port. 5. The vehicle according to claim 1, wherein the fascia rib has an extended portion extending to the vehicle body, a fastening portion for attaching the fascia rib to the vehicle body is formed in the extended portion, and a vehicle width direction is provided. The positions of the fastening portion and the reinforcing body are different from each other, and the reinforcing body is displaced toward the fastening portion side in the vehicle width direction, and
A bumper fascia for a vehicle, wherein the bumper fascia is connected to a fascia rib at several places.