JP2000280842A - Mounting structure of front under run protector for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the handling property of a front under run protector by providing a hook member for temporarily retaining the front under run protector to a bracket. SOLUTION: A hook member 7 for temporarily retaining a front under run protector 1 to a bracket 3, which is attachably and detachably engaged with an engagement hole 8 provided on the bracket 3 side or the front under run protector 1 side is provided on the front under run protector 1 side or the bracket 3 side. In such a structure, the front under run protector 1 is lifted up to catch each hook part 7A of the hook members 7 on both ends in the engagement hole 8 of the bracket 3. Then, the front under run protector 1 is temporarily retained on the bracket 3 in the state where a mounting plate 3 on the rear side thereof is in contact with the front wall of the bracket 3. Accordingly, the mounting of the front under run protector 1 can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front underrun of a vehicle for preventing a vehicle such as a passenger car from getting under a vehicle such as a truck when the vehicle such as a truck collides with the vehicle such as a passenger vehicle. The present invention relates to a protector, and more particularly, to a mounting structure of a front underrun protector.

[0002]

2. Description of the Related Art Conventionally, a truck bumper is provided at a position higher than a passenger car such that a windshield of the passenger car hits the bumper. When the truck collides with the passenger car, the passenger car gets under the truck. There was a case that it would be.

For this reason, a technique has been proposed in which a bracket or the like is fixed to the front of the vehicle body frame below the front bumper, and a front underrun protector is attached to the bracket or the like (Japanese Utility Model Laid-Open No. 7-4209, Japanese Unexamined Patent Publication No. 1
0-310007, JP-A-9-263196 and JP-A-9-263197).

[0004]

Incidentally, such a conventional front underrun protector is particularly rigidly constructed so that it does not cause a large deformation even when a vehicle such as a passenger car collides, and is heavy. It is customary.

When the front underrun protector is mounted, the front underrun protector is lifted, and the front underrun protector and the bracket are fastened with bolts and nuts. As a result, the weight of the front underrun protector is heavy. It is not easy to align the bolt holes with the bolt mounting holes of the bracket, and it is difficult to work alone.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the mountability of a front underrun protector for preventing a passenger car from sneaking in a frontal collision of a passenger car or the like with a truck or the like.

[0007]

According to the first aspect of the present invention, a bracket is fixed to a front portion of a vehicle body frame at a position below a front bumper of a vehicle, and a front underrun protector is attached to the bracket. In the mounting structure for a front underrun protector of a vehicle, the front underrun protector is detachably engaged with an engaging hole formed on the bracket side or the front underrun protector side on the front underrun protector side or the bracket side. A hook member for temporarily holding the hook on the bracket.

According to a second aspect of the present invention, a front end portion of a hook member having a front end portion formed as a hook portion is fixedly attached to an upper surface of both end portions of the front underrun protector, while a front wall of a bracket is provided. An engagement hole is provided at a position above the front underrun protector mounting position of the portion.

According to a third aspect of the present invention, a base end of a hook member having a front end portion formed as a hook portion is fixedly attached to a lower end portion of the bracket, while being attached to a lower wall portion of a front underrun protector. It is characterized in that an engagement hole is provided.

According to a fourth aspect of the present invention, a mounting plate for mounting the front underrun protector to a bracket is formed as a hook member, and an upper end of the mounting plate is bent and formed as a hook portion. An engagement hole is provided at a position above the underrun protector mounting position.

In the invention according to claims 1 to 4,
When the front underrun protector is lifted and, for example, the hook members at both ends are hooked into the engagement holes of the bracket, the front underrun protector is temporarily held by the bracket in a state where the rear surface is in contact with the front wall of the bracket. You.

Thereafter, the front underrun protector may be fastened to the front wall of each bracket by bolts and nuts. Therefore, when mounting the front underrun protector, it is easy to align the bolt holes on the front underrun protector with the bolt mounting holes on the bracket, and the mounting is facilitated.

In the state where the hook member is engaged with the engagement hole, even if the bolts and nuts are loosened, the front underrun protector is held by the bracket. There is no danger of falling.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 1, a front underrun protector 1, which extends in the left-right direction of the vehicle behind a front bumper (not shown) of the vehicle, is disposed so as to cover a front portion of the vehicle below the front bumper.

Brackets 3 each extending downward and having a substantially U-shaped cross section are fixedly mounted on both side surfaces of the front portion of the vehicle body frame 2 at positions below the front bumper of the vehicle.
The front underrun protector 1 is fastened to each bracket 3 by bolts and nuts 6 via mounting plates fixed at both ends to the rear surface of the front underrun protector 1 by welding or the like.

Here, the weight of the front underrun protector 1 is heavy, and it is not easy to align the bolt holes of the mounting plate 5 with the bolt mounting holes of the bracket 3 and the mounting becomes difficult.

Accordingly, in the present invention, the front underrun protector 1 or the bracket 3 is detachably engaged with an engaging hole formed in the bracket 3 or the front underrun protector 1 to form a front underrun. A hook member for temporarily holding the protector 1 to the bracket 3 is provided.

For example, in the embodiment shown in FIG. 4, a substantially L-shaped hook member 7 having a front end formed as a hook portion 7A is provided on the upper surface of both ends of the front underrun protector 1.
Is fixedly attached by welding to the front end of the bracket 3, and a rectangular engaging hole 8 is provided on the front wall of the bracket 3 at a position above the mounting position of the front underrun protector 1.

According to this embodiment, when the front underrun protector 1 is lifted and the hooks 7A of the hook members 7 at both ends thereof are hooked into the engaging holes 8 of the bracket 3, the front underrun protector 1 The mounting plate 5 on the rear surface is temporarily held by the bracket 3 in a state where the mounting plate 5 is in contact with the front wall of the bracket 3.

Thereafter, each mounting plate 5 may be fastened to the front wall of each bracket 3 by using bolts and nuts 6. Therefore, when the front underrun protector 1 is mounted, the positioning of the bolt holes of the mounting plate 5 with the bolt mounting holes of the bracket 3 becomes easy, and the mounting becomes easy.

In the state where the hook member 7 is engaged with the engagement hole 8 as described above, even if the bolt / nut 6 is loosened, the front underrun protector 1 is held by the bracket 3 as a result. There is no fear that the front underrun protector 1 will fall.

Further, according to this embodiment, since the hook member is provided on the front underrun protector side, it is not necessary to particularly provide a separate member on the bracket side, and the bracket side can have a simple configuration.

Next, in the embodiment shown in FIG. 5A, a base end of a substantially L-shaped hook member 9 having a front end formed as a hook 9A is fixed to the lower end of the bracket 3 by welding. On the other hand, a rectangular engagement hole 10 is provided in the lower wall of the front underrun protector 1.

In this embodiment, when the front underrun protector 1 is lifted and the engagement hole 10 is hooked on each hook portion 9A of the hook member 9 on the bracket 3, the front underrun protector 1 is moved to the rear surface. The mounting plate 5 is temporarily held by the bracket in a state where the mounting plate 5 is in contact with the front wall of the bracket 3.

According to this embodiment, since the hook member is provided on the bracket side, there is no need to provide a separate member on the front underrun protector side.
There is no risk of weight increase of the front underrun protector.

In the embodiment shown in FIG. 5B, the mounting plate 11 of the front underrun protector 1 is configured as a hook member, and the upper end of the mounting plate 11 is bent as a hook 11A. . On the other hand, a rectangular engaging hole 12 is provided on the front wall of the bracket 3 at a position above the mounting position of the front underrun protector 1.

According to this embodiment, the front underrun protector 1 is lifted and the mounting plates 1 at both ends thereof are lifted.
When each of the hooks 11A is hooked into the engagement hole 12 of the bracket 3, the front underrun protector 1 is temporarily held by the bracket 3 in a state where the mounting plate 11 is in contact with the front wall of the bracket 3.

According to this embodiment, since the mounting plate 11 of the front underrun protector 1 is configured as a hook member, there is no need to provide a hook member separately from the mounting plate, and the configuration can be simplified. At the same time, there is no risk of weight increase of the front underrun protector.

[0029]

As described above, according to the first to fourth aspects of the present invention, when mounting the front underrun protector, for example, the positioning of the bolt hole on the front underrun protector side with the bolt mounting hole of the bracket is performed. And the like, and the mounting work of the front underrun protector can be improved by one person.

In particular, according to the second aspect of the present invention, since the hook member is provided on the front underrun protector side, it is not necessary to separately provide a separate member on the bracket side, and the bracket side can have a simple configuration. it can.

According to the third aspect of the present invention, since the hook member is provided on the bracket side, there is no need to separately provide a member on the front underrun protector side.
There is no risk of weight increase of the front underrun protector.

According to the fourth aspect of the present invention, since the mounting plate itself in the front underrun protector is configured as a hook member, there is no need to provide a hook member separately from the mounting plate, and the configuration can be simplified, and There is no risk of weight increase of the front underrun protector.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of a mounting structure of a front underrun protector of a vehicle according to the present invention, wherein (A) is a perspective view and (B) is a view indicated by an arrow Q in (A).

FIGS. 2A and 2B are side sectional views showing other embodiments, respectively.

[Explanation of symbols]

 Reference Signs List 1 front underrun protector 2 body frame 3 bracket 5 mounting plate 6 bolt / nut 7 hook member 8 engaging hole 9 hook member 10 engaging hole 11 mounting plate 12 engaging hole

Claims (4)

[Claims] 1. A front underrun protector mounting structure for a vehicle, wherein a bracket is fixed to a front portion of a vehicle body frame below a front bumper of the vehicle, and a front underrun protector is mounted on the bracket. On the protector side or the bracket side, it is detachably engaged with an engagement hole formed on the bracket side or the front underrun protector side,
A mounting structure for a vehicle front underrun protector, wherein a hook member for temporarily holding the front underrun protector to a bracket is provided. 2. A front underrun protector on a front wall portion of a bracket, while a base end of a hook member having a front end formed as a hook portion is fixedly attached to an upper surface of both ends of the front underrun protector. The mounting structure for a front underrun protector of a vehicle according to claim 1, wherein an engagement hole is provided at a position above the mounting position. 3. A lower end portion of the bracket is provided with an engagement hole formed in a lower wall portion of a front underrun protector while a base end portion of a hook member having a tip portion formed as a hook portion is fixedly attached to the lower end portion of the bracket. The mounting structure for a front underrun protector of a vehicle according to claim 1, wherein: 4. A mounting plate for attaching the front underrun protector to a bracket is formed as a hook member.
2. The mounting plate according to claim 1, wherein an upper end portion of the mounting plate is bent as a hook portion, and an engagement hole is provided on a front wall portion of the bracket at a position above a mounting position of the front underrun protector.
The mounting structure of the front underrun protector of the vehicle described in the above.