JP2504867Y2 - Vehicle bumper mounting structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a structure for mounting a bumper of an automobile, and in particular, the positioning can be facilitated when the upper lip hose is attached to the bumper cover to improve workability. The present invention relates to a structure that can prevent the bumper from being deformed or damaged during a light collision.

[Conventional technology]

2. Description of the Related Art In automobiles, resin bumpers are attached to the front and rear ends of a vehicle body to absorb the impact of a light collision of the vehicle. As an example of such a bumper mounting structure, there is conventionally one shown in FIGS. 5 and 6.

In the figure, 20 is a resin-made front bumper cover arranged at the front end of the vehicle body, and a band-plate-shaped rib 21 extending in the vehicle width direction is projectingly provided on an inner surface 20a thereof. This rib
A horizontal wall 22b extending to the inner surface 20a of the bumper cover 20 is integrally formed on the lower surface of the column 21 following the vertical wall 22a, whereby a box rib 22 having a box-shaped cross section is formed. In addition, 25 is a metal plate made of up-line hose, which is the rib
It is composed of a U-shaped engaging portion 25a for sandwiching 21 and a mounting portion 25b which extends downward and abuts against the vertical wall 22a, and a bolt hole 26 is formed in the mounting portion 25a. Has been done.

To attach the bumper cover 20 to the vehicle body, the engaging portion 25a of the rein hose 25 is fitted to the rib 21 of the bumper cover 20, and the mounting hole 23 formed in the vertical wall 22a and the bolt hole 26 of the mounting portion 25b. Tighten with bolts 27 and fix while positioning so that After this, the assembly of the bumper cover 20 and the up-line hose 25 is bump-staped.
Bolt through side member 29 of the car body through 28.

[Problems to be solved by the device]

However, in the above-described conventional bumper mounting structure, the bumper cover 20 and the upper lip hose 25 are positioned by assembling the mounting holes 23 and the bolt holes 26, so that the assembly work of both is performed. However, there is a problem in that it is time-consuming and the dimensional accuracy when mounted on the vehicle body tends to be low.

Further, since the above-mentioned conventional mounting structure is a structure in which both the vertical and longitudinal impact forces acting in the event of a light collision are borne by the up-line hose 25 only, the strength against any of the impact forces is insufficient. Also, the attachment point of the up-line hose is liable to move back and forth, and as a result, the bumper is easily deformed and damaged, and the entire bumper must be replaced. is there.

The present invention has been made to solve the above-mentioned conventional problems, and it is possible to improve the workability by facilitating the positioning when attaching the up-liner hose to the bumper cover, and to suppress the deformation and damage at the time of a light collision. An object of the present invention is to provide a vehicle bumper mounting structure that can be used.

[Means for solving the problem]

According to the present invention, a rib extending in the vehicle width direction is provided on an inner surface of a resin bumper cover, a rein hose is attached to the rib, and the bumper cover is fixed to the vehicle body through the rein hose. In the structure, a plurality of positioning portions 8 are provided on the rib 5 so as to project toward the rear of the vehicle at intervals in the vehicle width direction, and are formed to stand upright from the upper surface of the reinforcement hose 6 in the vehicle width direction with the positioning portion 8. A vertical wall that abuts and a lateral wall that is bent laterally from the upper end of the vertical wall and that abuts the positioning portion 8 in the vertical direction are provided to position the bumper cover 3 in the vehicle width direction and to move the vehicle in the vehicle vertical direction. Multiple control units that regulate the movement of
Are formed at intervals in the vehicle width direction on the rein hose 6 and project upward from the upper surface of the rein hose 6, and contact the rear end surface 5a of the rib 5 to move the bumper cover 3 in the vehicle longitudinal direction. A plurality of restricting seats 11 for restricting are formed in the rein hose 6 at intervals in the vehicle width direction, and the restricting portions 10 and the protruding seats 11 are located at different parts in the vehicle width direction. It has a feature.

Here, the regulation portion can be realized by, for example, cutting and raising a part of the reinforcement, and the convex portion or the concave portion is fitted into the cut and raised portion.

[Action]

According to the vehicle bumper mounting structure of the present invention, the plurality of positioning portions formed on the ribs of the bumper cover are fitted to the regulating portions of the rein hose, and the end surfaces of the ribs are brought into contact with the protruding seat portions. Therefore, the regulation portion positions the bumper cover in the vehicle width direction, regulates movement of the vehicle body in the vertical direction, and the projection seat portion regulates movement of the vehicle body in the longitudinal direction. As a result, the bumper cover can be mounted while positioning by simply contacting the rib with the protruding portion while fitting the positioning portion with the regulation portion, and the conventional bumper cover mounting hole and the rein hose bolt hole can be connected. Positioning is easier than the work of tightening bolts while aligning them, and workability can be improved by the amount that bolting is unnecessary.

Further, in the present invention, the impact force in the vertical direction at the time of a light collision is borne by the regulating portion, and the impact force in the front-back direction is borne by the projecting seat portion. It is possible to avoid deformation and damage of the, and eventually reduce repair costs.

〔Example〕

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

1 to 4 are views for explaining a vehicle bumper mounting structure according to an embodiment of the present invention. In this embodiment, the case where the invention is applied to a front bumper will be described as an example.

In the figure, reference numeral 1 denotes an automobile to which the mounting structure of this embodiment is applied, and a front bumper cover 3 is mounted on a front end surface 2a of the vehicle body 2. The bumper cover 3 is made of resin, and comprises a main body portion 3a extending in the vehicle width direction and side portions 3b extending to the rear of the vehicle body at both ends of the main body portion 3a. The bolt insertion hole 4 fixed by is formed.

A band-plate-shaped rib 5 extending in the vehicle width direction is integrally formed on the inner surface 3c of the bumper cover 3. A pair of positioning projections 8 are integrally formed on both ends of the rib 5 in the vehicle width direction, and each projection 8 is a rear end surface of the rib 5.
It projects from 5a to the rear of the vehicle.

On the rib 5 of the bumper cover 3, an upper reinose hose 6 made of a metal plate is arranged. The reinforcement hose 6 has a hat-shaped cross section formed by bending the edge portion of the upper wall 6a in a stepwise manner to integrally form the flange portions 6b, 6b. The flange portion 6b has L-shaped ends at both ends in the vehicle width direction. Shaped stay bracket 7
Are fixed by spot welding. This bracket 7
The bolt 9 is fixed to the side member 2b of the vehicle body 2 by inserting the bolt 9 into the bolt holes 7a, 7a formed therein.

Further, a pair of hook-shaped restricting portions 10, 10 are formed on the upper wall 6a of the above-mentioned upper reinforcement hose 6. This regulatory department 10
Is formed by cutting and raising a part of the upper wall 6a and bending it outward in the vehicle width direction. The vertical wall 10a of each restricting portion 10 abuts on the inner side surface of the positioning convex portion 8 and the upper wall 6b and the upper wall 6b. Wall 6
The convex portion 8 is held between a and. As a result, the bumper cover 3 is positioned in the vehicle width direction and the vertical movement of the vehicle body is restricted.

A protruding seat 11 is formed so as to bulge upward between the restricting parts 10 and 10 of the upper wall 6a of the rein hose 6 and at the outer end thereof, and the front surface 11a of the protruding seat 11 has the above-mentioned structure. The rib 5 is in contact with the rear end surface 5a. As a result, movement of the bumper cover 3 in the vehicle front-rear direction is restricted.

 Next, the function and effect of this embodiment will be described.

To attach the bumper cover 3 of this embodiment to the vehicle body 2,
First, the stay bracket 7 welded to the upper reinforcement hose 6 is fastened and fixed to the side member 2b with the bolt 9. Then, the positioning projection 8 of the bumper cover 3 is fitted into the restriction portion 10 of the reinforcement hose 6, and the protruding seat portion
The rear end surface 5a of the rib 5 is brought into contact with the rib 11. Then, the side portion 3b of the bumper cover 3 is fixed to the vehicle body 2 with a bolt.

As described above, according to this embodiment, the rib 5 of the bumper cover 3 is provided with the positioning protrusion 8 so as to form the regulating portion 10 on which the positioning protrusion 8 fits on the upper lip hose 6, and the rib 5 Since the projecting seat portion 11 with which the rear end surface 5a of 5 abuts is bulged, the rib 5 is fitted to the projecting seat portion 11 while the positioning convex portion 8 is fitted to the regulating portion 10 as described in the above-mentioned assembly procedure. It is possible to mount the bumper cover 3 while positioning it by simply abutting it, which makes positioning easier than the conventional work of bolting while aligning the mounting hole and the bolt hole, and further, bolting is unnecessary. Workability can be improved as much as possible and the number of parts can be reduced.

Further, in this embodiment, the restricting portion 10 bears the vertical impact force during a light collision, and the front-back impact force is the protruding seat portion 11.
As compared with the conventional structure that concentrates on the mounting portion of the rein hose, it is possible to separately bear the impact force in different directions, so that the deformation and damage of the bumper can be suppressed and the repair cost can be reduced.

In the above-described embodiment, the convex portion is integrally formed on the rear end surface 5a of the rib 5 and used as the positioning portion. However, the structure of the positioning portion of the present invention is not limited to this. The positioning portion may be formed by cutting out, or the rib may be formed with a slit to serve as the positioning portion.

Further, although the lateral wall 10b is bent outward in each of the restricting portions 10, it may be bent inward, and the restricting portion is not limited to the cut-and-raised structure, and another component may be fixed. .

[Effect of device]

As described above, according to the vehicle bumper mounting structure of the present invention, the rib of the bumper cover is provided with the positioning portion,
Since the restriction portion that abuts the positioning portion in the vehicle width direction and the vertical direction is formed on the rein hose, and the protruding seat portion that abuts the rib in the front-rear direction is formed on the rein hose, the vehicle width of the bumper cover is formed by the regulation portion. Directional positioning and vertical movement of the vehicle body can be regulated, and movement of the vehicle body in the front-back direction can be regulated by the protruding seat portion. As a result, there is an effect that workability can be improved while positioning at the time of mounting is facilitated. The impact force at the time of a light collision can be separately burdened, and the deformation and damage of the pumper can be suppressed.

[Brief description of drawings]

1 to 4 are views for explaining a mounting structure of a vehicle bumper according to an embodiment of the present invention. FIG. 1 is an exploded perspective view showing a state in which a bumper cover is mounted on a reinforcement hose, and FIG. 1 is a sectional view taken along line II-II in FIG. 1, FIG. 3 is a sectional view taken along line III-III in FIG. 1, and FIG. 4 is a perspective view of an automobile to which the mounting structure of this embodiment is applied, FIG. FIG. 6 is an exploded perspective view and a sectional view showing a conventional mounting structure. In the figure, 2 is a vehicle body, 3 is a bumper cover, 3c is an inner surface,
5 is a rib, 5a is a rear end face, 6 is a rein hose, 8 is a positioning projection (positioning part), 10 is a restricting part, and 11 is a protruding seat part.

Claims (1)

(57) [Scope of utility model registration request] 1. A bumper for a vehicle, wherein a rib extending in a vehicle width direction is provided on an inner surface of a resin bumper cover so that a reinforcement hose is attached to the rib, and the bumper cover is fixed to a vehicle body through the reinforcement. In the mounting structure, a plurality of positioning portions are provided on the ribs so as to project toward the rear of the vehicle at intervals in the vehicle width direction, and are vertically formed so as to stand upward from the upper surface of the reinforcement hose and contact the positioning portions in the vehicle width direction. A wall and a lateral wall bent laterally from the upper end of the vertical wall and abutting the positioning portion in the vertical direction are provided, and the bumper cover is positioned in the vehicle width direction and the vertical movement of the vehicle body is restricted. A plurality of restricting portions are formed on the rein hose at intervals in the vehicle width direction, project upward from the upper surface of the rein hose, and abut on the rear end surface of the rib so as to contact the vane. A plurality of protruding seat portions that restrict the movement of the cover in the vehicle front-rear direction are formed in the reinhose at intervals in the vehicle width direction, and the restriction portions and the protruding seat portions are located at different portions in the vehicle width direction. The vehicle bumper mounting structure characterized by