JP2021172156A - Vehicle front structure - Google Patents

Abstract

To provide a vehicle front structure capable of reliably protecting a sensor despite a displacement of a headlight occurring at a time of a collision.SOLUTION: A vehicle front structure includes a headlight 2 disposed separately from a light support member 4 that is a body member of a vehicle front part 1, and a sensor 8 located at a position on the light support member 4, which is opposed to the headlight 2, via a bracket 7. Herein, a protector 9 is mounted on the light support member 4 via the bracket 7 between the headlight 2 and the sensor 8 so that the protector can shield the sensor 8, and is disposed apart from the sensor 8.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle front structure having sensors around the headlights.

Conventionally, various sensors such as an airbag sensor that determines a threshold value for operating an airbag device are attached to the front portion of the vehicle. Such sensors provided at the front of the vehicle may be arranged around the headlights. In this case, a structure is known in which measures are taken for the vehicle body, the headlights, and the like so that the headlights do not interfere with the sensor even if the headlights are displaced during a collision (see, for example, Patent Document 1). ..

In the vehicle body front structure disclosed in Patent Document 1, a rotation axis is provided on the outside of the headlamp (corresponding to a headlight or a headlight) in the vehicle width direction, and an airbag is provided near the inside of the headlamp in the vehicle width direction. A sensor is provided. The airbag sensor is arranged in the rotation locus of the inner end portion in the vehicle width direction when the headlamp rotates relative to the rear side around the rotation axis. Further, a lamp stopper is provided at the inner end of the headlamp in the vehicle width direction, and an interference portion is provided at the front end of the front side member located on the rear side of the vehicle body of the lamp stopper. The interference portion is arranged in the rotation locus of the lamp stopper in the relative rotation around the rotation axis of the headlamp. In such a vehicle body front structure, the lamp stopper abuts on the interference portion at the time of a frontal collision to limit the relative rotation of the headlamp, thereby preventing interference between the headlamp and the airbag sensor.

Japanese Patent No. 4525655

However, in the conventional structure as described above, for example, when an obstacle collides with the position of the rotation axis of the headlamp, the headlamp does not rotate and moves in parallel, so that the lamp stopper hits the interference portion. Do not touch. In this case, the headlamp comes into contact with the airbag sensor and the sensor is not protected, so that the airbag device may not operate properly. That is, the conventional structure protects the sensor against the displacement of the headlamp at the time of a frontal collision, but against the displacement of the headlight (headlamp) due to the collision from not only the front surface of the vehicle but also the side surface and the like. However, there was a need to protect the sensor, and there was room for improvement.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle front structure capable of reliably protecting a sensor against displacement of a headlight in the event of a collision. ..

In order to solve the problems of the prior art, the present invention provides headlights arranged at intervals with respect to the vehicle body member at the front of the vehicle and at positions facing the headlights of the vehicle body member. Provided with a sensor and a vehicle front structure equipped with. The vehicle front structure is provided on the vehicle body member so as to cover the sensor between the headlight and the sensor, and includes protectors arranged at intervals from the sensor.

According to the vehicle front structure according to the present invention, the protectors are arranged at intervals between the headlight and the sensor so as to cover the sensor, so that even if the headlight is displaced during a collision, the headlight Can reliably protect the sensor by contacting the protector.

It is a perspective view which looked at the schematic structure of the front part of a vehicle to which the structure which concerns on embodiment of this invention is applied from the front side of a vehicle. It is a perspective view which shows the part A in FIG. 1 enlarged. It is a perspective view which saw from diagonally above on the right side of a vehicle by enlarging part A in FIG. 1 with the headlight removed. It is an enlarged perspective view of the part A in FIG. 1 with the headlight and the protector removed, and viewed from diagonally above on the right side of the vehicle. FIG. 2 is a cross-sectional view taken along the line BB in FIG. It is a top view of the sensor peripheral view from the upper side of the vehicle with the headlights removed. It is a top view which looked at the sensor peripheral side from the lower side of a vehicle with the headlight removed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 to 7 show a vehicle front structure according to an embodiment of the present invention. In the figure, the arrow F direction indicates the vehicle front in the vehicle front-rear direction, the arrow U direction indicates the vehicle upper direction in the vehicle vertical direction, and the arrow O direction indicates the vehicle outer side in the vehicle width direction. Further, the "left and right" in the description of the embodiment correspond to the left and right when the front is viewed from the vehicle interior.

As shown in FIG. 1, headlights 2 are arranged on both left and right sides in the vehicle width direction in the vehicle front portion 1 to which the structure according to the embodiment of the present invention is applied. The headlight 2 is attached to a light support brace 3 and a fender panel (not shown).

The light support brace 3 extends in the vertical direction of the vehicle, the front bumper member 5 is fixed to the lower end portion, the hood lock member upper 6a is fixed to the upper end portion, and the hood lock member lower 6b is fixed to the middle portion. Has been done. The front bumper member 5, the hood lock member upper 6a, and the hood lock member lower 6b each extend in the vehicle width direction and are bridged between the left and right light support braces 3.

A light support member 4 as a vehicle body member is fixed to an intermediate portion of the light support brace 3 in the vertical direction of the vehicle. The light support member 4 protrudes outward in the vehicle width direction from a fixed portion with the light support brace 3, and is formed in a shape in which the tip portion is bent rearward of the vehicle (a substantially L-shape in a plan view).

2 to 7 show the structure around the headlight 2 (part A in FIG. 1) arranged on the right side of the vehicle. Since the structure around the headlight 2 arranged on the left side of the vehicle is the same as that on the right side of the vehicle, the description below will be omitted.

The headlight 2 in the present embodiment has a main body portion 2a and a mounting member 2b, and has an upper portion of a side surface portion of the light support brace 3 located on the vehicle front side and an inner portion of a fender panel (not shown) in the vehicle width direction. The main body 2a is attached to the upper and lower two places via the attachment member 2b. The main body 2a of the headlight 2 is arranged at a distance from the vehicle front side portion of the upper surface portion 4a of the light support member 4. A sensor 8 and a protector 9 are provided on the vehicle front side portion of the upper surface portion 4a of the light support member 4 via a bracket 7 (see FIGS. 2 to 4).

The sensor 8 is, for example, an airbag sensor that determines a threshold value for operating an airbag device (not shown). As shown in FIGS. 4 and 5 (cross-sectional view taken along the line BB in FIG. 2), the sensor 8 is provided on the bracket 7 at a position facing the main body 2a of the headlight 2. Further, a harness 11 is connected to the sensor 8 via a coupler 10 (see FIG. 4).

As shown in FIGS. 4 and 6, the bracket 7 is a fixing portion that is joined to and fixed to the upper surface portion 4a of the light support member 4 at a portion located outside the center in the vehicle width direction in the middle of the vehicle front-rear direction. It has 7a. A sensor installation portion 7b is continuously formed at the inner end portion of the fixed portion 7a in the vehicle width direction. The sensor installation portion 7b has a flat portion at a position closer to the headlight 2 side (upper side of the vehicle) than the fixed portion 7a, and the sensor 8 is fastened to the flat portion with a bolt.

Further, a rear joint portion 7c is continuously provided at the rear end portion of the fixing portion 7a of the bracket 7 in the vehicle front-rear direction. Like the sensor installation portion 7b, the rear joint portion 7c also has a flat portion at a position closer to the headlight 2 side (upper side of the vehicle) than the fixed portion 7a. In the present embodiment, the flat portions of the sensor installation portion 7b and the rear joint portion 7c are continuously formed at the same height, and as shown in the cross-sectional view of FIG. 5, the upper surface portion 4a of the light support member 4 is formed. A gap is provided between the sensor installation portion 7b and the flat portion of the rear joint portion 7c. An opening 4b is formed in the upper surface portion 4a of the light support member 4 at a position corresponding to the sensor 8 fixed to the bracket 7 (see FIGS. 5 and 7).

Further, front joint portions 7d are continuously provided at the front end portions of the bracket 7 fixing portion 7a and the sensor installation portion 7b in the vehicle front-rear direction. The front joint portion 7d has a flat portion at a position closer to the headlight 2 side (upper side of the vehicle) than the flat portion of the sensor installation portion 7b. A protector 9 is joined to each flat portion of the front joint portion 7d and the rear joint portion 7c and fastened with bolts. The rear joint portion 7c of the bracket 7 is provided with a claw hole 7e for preventing the protector 9 from rotating together when the protector 9 is fastened with bolts.

As shown in FIGS. 3, 5 and 6, the protector 9 is provided on the bracket 7 so as to cover the sensor 8 between the headlight 2 and the sensor 8, and the light support member is provided via the bracket 7. It is fixed to the upper surface portion 4a of 4. The protectors 9 are arranged at intervals with respect to the sensor 8. In other words, the sensor 8 is sandwiched and housed between the bracket 7 and the protector 9.

The protector 9 of the present embodiment extends in the front-rear direction of the vehicle between the headlight 2 and the sensor 8, and a front joint portion 9a is formed at the front end portion and a rear joint portion 9b is formed at the rear end portion. Has been done. The front joint portion 9a of the protector 9 is joined to the front joint portion 7d of the bracket 7 described above and fastened with bolts, and is arranged at a position overlapping the sensor 8 when viewed from the front of the vehicle. The front joint portion 9a of the protector 9 has a divergent shape in which the length (horizontal width) in the vehicle width direction increases toward the rear of the vehicle (see FIGS. 3 and 6). The yield of the protector 9 is improved by adopting such a divergent shape.

Further, the protector 9 has a rising portion 9c that rises from the rear end of the front joint portion 9a toward the headlight 2 side (upper side of the vehicle), and at least one bead 9d is formed in the rising portion 9c. Has been done. The bead 9d extends in a direction intersecting the rising portion 9c extending in the vehicle width direction, and in the present embodiment, two beads 9d extending in the vehicle front-rear direction are provided in the rising portion 9c (FIG. 6). 5 and FIG. 6). A front inclined portion 9e is continuously provided at the tip (upper end) of the rising portion 9c. The front inclined portion 9e is inclined so as to approach the headlight 2 toward the rear of the vehicle. Therefore, the bracket 7 and the protector 9 are formed so as to be separated from each other from the front joint portion toward the rear of the vehicle.

Further, a flat portion 9f is continuously provided at the rear end of the front inclined portion 9e of the protector 9. The flat portion 9f extends to the rear of the vehicle and is located near the center of the protector 9 in the front-rear direction of the vehicle. A sensor 8 fixed to the bracket 7 and a coupler 10 mounted on the sensor 8 are arranged at intervals on the lower side of the flat portion 9f of the protector 9 (see FIGS. 3 to 5). .. That is, in the present embodiment, the protector 9 covers the sensor 8 and the coupler 10.

In addition, the protector 9 bends toward the headlight 2 side (upper side of the vehicle) of the sensor 8 and in the region rearward of the vehicle from the center of the sensor 8 in the front-rear direction of the vehicle in a direction away from the headlight 2 toward the rear of the vehicle. It has a bent portion 9g, and a rear inclined portion 9h inclined from the bent portion 9g toward the rear joining portion 9b is formed (see FIG. 5). The length (horizontal width) of the rear inclined portion 9h in the vehicle width direction is narrower than that of the flat portion 9f (see FIGS. 3 and 6). The above-mentioned rear joint portion 9b is continuous with the rear end of the rear inclined portion 9h. The rear joint portion 9b of the protector 9 is joined to the rear joint portion 7c of the bracket 7 and fastened with bolts. The rear joint portion 9b of the protector 9 is formed with a claw 9i that engages with the claw hole 7e of the bracket 7.

Next, the operation of the vehicle front structure according to the present embodiment will be described in detail.
In the vehicle front portion 1 to which the structure as described above is applied, the protector 9 is arranged at a distance between the headlight 2 and the sensor 8 so as to cover the sensor 8 (and the coupler 10). Even if the headlight 2 is displaced during a collision, the sensor 8 can be reliably protected by the headlight 2 coming into contact with the protector 9. As a result, the airbag device and the like can be operated appropriately, and the occupant can be protected.

Further, in the vehicle front structure of the present embodiment, the sensor 8 and the protector 9 are provided on the light support member 4 (body member) via the bracket 7, and the bracket 7 and the protector 9 are more vehicles than the sensor 8. The front joints are joined to each other on the front side, the front joints are arranged at positions that overlap with the sensor 8 when viewed from the front of the vehicle, and the bracket 7 and the protector 9 are separated from each other from the front joint toward the rear of the vehicle. It is formed. This makes it possible to effectively protect the sensor 8 even when the collision load at the time of a frontal collision is input to the bracket 7 and the protector 9.

More specifically, in recent years, as the engine room and the like that can be arranged in the front portion 1 of the vehicle have been reduced in size, a sensor 8 such as an airbag device may be provided at the front end of the vehicle. In this case, the collision load L at the time of a frontal collision may be directly input to the front joints 7d and 9a of the bracket 7 and the protector 9 as shown by the white arrows in FIG. At this time, the component of the collision load L input to the front joint portion 7d of the bracket 7 is transmitted to the light support member 4 side (lower side of the vehicle) through the fixing portion 7a and the sensor installation portion 7b, and is released to the protector. The component input to the front joint portion 9a of 9 is sequentially transmitted through the rising portion 9c and the front inclined portion 9e and is released to the headlight 2 side (upper side of the vehicle).

That is, in the vehicle front structure of the present embodiment, the bracket 7 and the protector 9 can disperse the collision load L at the time of a frontal collision in the vertical direction of the vehicle and release it. It is possible to effectively protect the sensor 8 at a position overlapping the above. Further, since the bracket 7 and the protector 9 are joined to each other, the front joints 7d and 9a have high rigidity, so that the collision load L is sensored via the front joint 7d of the bracket 7 and the sensor installation portion 7b. It becomes easy to be transmitted to 8, and it is possible to improve the responsiveness of the sensor 8. Even when the peripheral parts such as the headlight 2 are displaced due to a frontal collision, the peripheral parts come into contact with the protector 9, so that the sensor 8 is protected.

Further, in the vehicle front structure of the present embodiment, the bracket 7 and the protector 9 are joined to each other by the rear joints 7c and 9b located on the rear side of the vehicle with respect to the sensor 8, and the protector 9 is connected to the sensor 8. Also has a bent portion 9g that bends in a direction away from the headlight 2 toward the rear of the vehicle in a region on the side of the headlight 2 and on the rear side of the vehicle from the center of the sensor 8 in the front-rear direction of the vehicle. As a result, when the protector 9 is deformed by the collision load L at the time of the frontal collision described above, the bent portion 9g bends toward the headlight 2 side (upper side of the vehicle). In particular, in the present embodiment, the length (horizontal width) of the rear inclined portion 9h in the vehicle width direction is narrower than that of the flat portion 9f, and the bent portion 9g has a fragile structure, so that it receives a collision load L. At that time, the protector 9 will surely bend at the bent portion 9 g. Therefore, even if the protector 9 is deformed by the collision load L, a space is created between the sensor 8 and the protector 9, so that the protector 9 after the deformation is prevented from coming into contact with the sensor 8 while being combined with the sensor 8. Contact with the headlight 2 can be avoided by the protector 9.

In addition, in the vehicle front structure of the present embodiment, the strength of the rising portion 9c is enhanced by forming the bead 9d on the rising portion 9c of the protector 9. As a result, when the above-mentioned collision load L is input to the protector 9, it is possible to reduce the bending deformation of the rising portion 9c, so that it is possible to reliably prevent the protector 9 from coming into contact with the sensor 8. ..

Further, in the vehicle front structure of the present embodiment, an opening 4b is formed at a position corresponding to the sensor 8 fixed to the bracket 7 on the upper surface portion 4a of the light support member 4. As a result, when the headlight 2 displaced by the collision comes into contact with the protector 9 and a load is input to the periphery of the sensor 8, the sensor 8 comes into direct contact with the light support member 4 (body member) via the bracket 7. Can be prevented. That is, since the light support member 4 has the opening 4b, the escape allowance of the sensor 8 when the headlight 2 comes into contact with the protector 9 is secured by the opening 4b. Therefore, the sensor 8 can be protected more reliably.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and modifications can be made based on the technical idea of the present invention. For example, in the above-described embodiment, the sensor 8 and the protector 9 are provided on the light support member 4 via the bracket 7, but the sensor 8 and the protector 9 are provided directly on the upper surface portion 4a of the light support member 4. You may do so.

Further, in the above-described embodiment, an example is shown in which the sensor 8 and the protector 9 are provided on the upper surface portion 4a of the light support member 4 via the bracket 7, but the side surface of the light support brace 3 located on the outer side in the vehicle width direction. The same applies to the above-described embodiment when the sensor 8 and the protector 9 are provided in the portion (via the bracket 7), that is, when the headlight 2 and the sensor 8 are arranged in the vehicle width direction. It is possible to obtain various effects.

Further, in the above-described embodiment, the width of the rear inclined portion 9h in the protector 9 is made narrower than the width of the flat portion 9f so that the bent portion 9g has a fragile structure. It is also possible to make the bent portion 9 g into a fragile structure by thinning the plate.

1 ... Vehicle front 2 ... Headlight 2a ... Main body 3 ... Light support brace 4 ... Light support member 4a ... Top surface 7 ... Bracket 7a ... Fixed part 7b ... Sensor installation part 7c ... Rear joint part 7d ... Front side joint 8 ... Sensor 9 ... Protector 9a ... Front joint 9b ... Rear joint 9c ... Rising part 9d ... Bead 9e ... Front inclined part 9f ... Flat part 9g ... Bending part 9h ... Rear inclined part 10 ... Coupler

Claims (5)

In the vehicle front structure including headlights arranged at intervals with respect to the vehicle body member at the front portion of the vehicle and a sensor provided at a position facing the headlight of the vehicle body member.
A vehicle front structure including a protector provided on the vehicle body member so as to cover the sensor between the headlight and the sensor and arranged at a distance from the sensor. A bracket provided on the vehicle body member is provided.
The sensor is fixed at a position of the bracket facing the headlight, and is provided on the vehicle body member via the bracket.
The protector extends between the headlight and the sensor in the front-rear direction of the vehicle and is fixed to the bracket so as to cover the sensor, and is provided on the vehicle body member via the bracket.
The protector and the bracket are joined to each other at a front joint located on the front side of the vehicle with respect to the sensor, and the front joint is arranged at a position overlapping the sensor when viewed from the front of the vehicle, and the front joint is formed. The vehicle front structure according to claim 1, wherein the vehicle front structure is formed so as to be separated from each other from the portion toward the rear of the vehicle. The protector and the bracket are joined to each other at a rear joint located on the rear side of the vehicle with respect to the sensor.
The protector has a bent portion that bends toward the headlight side of the sensor and in a region rearward of the vehicle from the center of the sensor in the vehicle front-rear direction toward the rear of the vehicle. , The vehicle front structure according to claim 2. The vehicle front according to claim 2 or 3, wherein the protector has a bead extending in a direction intersecting the rising portion at a rising portion rising from the front joint portion toward the headlight side. Part structure. The vehicle front structure according to any one of claims 1 to 4, wherein the vehicle body member has an opening at a position corresponding to the sensor.

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