JPH042832Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for attaching resin parts, and in particular, is capable of preventing deterioration of the appearance due to surface sinkage during molding of resin parts, and is capable of preventing the appearance of the parts to be attached. Concerning a structure that prevents rust from forming. The present invention is suitable, for example, for attaching a resin bumper to the outer panel of an automobile body, so this bumper will be described below as an example.

[Prior Art] Various structures have been proposed in the past for attaching resin parts such as bumpers to the outer panel of a vehicle body. There is. As shown in FIG.
A boss portion 3 is integrally formed on the side surface, a bolt 4 serving as a fastener is embedded in the boss portion 3, and the bumper body 1 is fixed to the vehicle body outer plate 2 with the bolt 4 and nut 5. It has a similar structure.

Another conventional structure is shown in FIG. 5 or 6. In the structure shown in FIG. 5, a leg part 6 is integrally formed on the back surface of the bumper body 1, a sheet metal clip 7 having a nut 7a is attached to the tip of the leg part 6, and the clip 7a is attached to the vehicle body using a bolt 4. It has a structure in which it is fixed in a state where it is in contact with 2. Further, in the structure shown in FIG. 6, the leg portion 6 is formed shorter than the upper and lower edges 1a of the bumper body 1, and in the fixed state, the upper and lower edges 1a of the bumper body 1 abut against the vehicle body outer plate 2, and The structure is such that a gap is formed between the outer plate 2 and the leg portion 6.

[Problem that the invention attempts to solve]

However, the conventional structure described in the above publication (No. 4
Figure) has a structure in which the head of the bolt 4 is buried in the boss part 3, so the boss part 3 has to be thicker than the bumper body 1, and there is surface sinkage 1b due to the difference in wall thickness between the two. There is a problem that this tends to occur and the appearance deteriorates.

In the structure shown in FIGS. 5 and 6, the leg portion 6 does not need to be thick, so the problem of surface sink can be solved. However, in the structure shown in FIG. 5, since the metal clip 7 comes into contact with the outer panel 2 of the vehicle body, there is a problem that the outer panel 2 is damaged and rust occurs. On the other hand, in the structure shown in FIG. 6, the clip 7 and the vehicle body 2 do not come into contact with each other, so this problem of rust does not occur.
There is a problem in that inward deformation 1c as shown by the broken line in the figure is likely to occur.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the conventional structures described above and to provide a mounting structure for resin parts that does not deteriorate the appearance and does not cause rust.

[Means for solving problems]

The present invention has a structure in which a resin component is attached to a metal attachment part using a fastener, and a pair of vertical walls and a parallel wall connecting the vertical walls are provided on the attachment part side of the main body of the resin component. A leg portion consisting of the above is integrally formed, and the fastener is engaged with the parallel wall of the leg portion, and a convex contact leg portion is integrally formed on the end surface of the leg portion on the side of the attached portion. It is characterized by

[Effect]

In the mounting structure for resin parts according to the present invention, since the legs are composed of a combination of vertical walls and parallel walls, there is no difference in wall thickness between the legs and the main body, and the surface during resin molding is The problem of sink marks can be solved, and since the abutting leg portions protruding from the leg portions abut against the attached portion in the installed state, the above-mentioned problem of rust due to scratches does not occur. Further, since the abutting leg portions are in contact with the attached portion, the vicinity of the leg portions of the main body portion will not be pulled inward, and therefore, the problem of deformation of the portions will not occur.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 are diagrams for explaining a bumper mounting structure on a vehicle body according to an embodiment of the present invention.

In the figure, 11 is a resin bumper attached to the front end or rear end of the vehicle body, and the bumper body 12 of the bumper 11 is a front bumper portion 1 extending in the vehicle width direction.
3, and a horizontal bumper portion 14 formed by bending in the vehicle longitudinal direction from the left and right end portions of the front bumper portion 13. Reinforcing ribs 13a,
14a is formed by bending inward.

Leg portions 16 for attaching the bumper 11 to the vehicle body outer plate 15 are integrally formed at three locations on the left, right, and center of the back surface of the front bumper portion 13 on the vehicle body outer plate 15 side, which is the attached portion. ing. This leg 16
consists of a pair of vertical walls 17, 17 extending substantially perpendicular to the front bumper portion 13, and a parallel wall 18 extending substantially parallel to the front bumper portion 13 between the vertical walls 17 and connecting both vertical walls 17. , has a U-shape when viewed from the side, and forms a R-shape together with the front bumper portion 13 . Further, a U-shaped recess 18a is formed in the parallel wall 18, and a clip 19 is fitted into the recess 18a. This clip 19 is made by bending a steel plate into a U shape, and a nut 2 is attached to the front bumper portion 13 side of the clip 19.
The clip 19, washer 21, and bolt 22 constitute a fastener 23 for fixing the bumper 11 to the vehicle body outer plate 15.

A pair of abutting legs 16a are integrally formed at the distal ends of the legs 16 facing the vehicle body outer plate 15 so as to extend the upper and lower vertical walls 17.
When the bumper 11 is attached to the vehicle body outer panel 15, the contact leg portion 16a is attached to the reinforcing rib 13 of the front bumper portion 13.
The length is set such that a gap is created between a and the vehicle body outer plate 15.

Next, the effects of this embodiment will be explained.

To attach the bumper 11 of this embodiment structure to the vehicle body outer panel 15, attach the clip 19 to the parallel wall 18 so that its nut 20 is located on the front bumper section 13 side, and attach the clip 19 to the parallel wall 18 so that the nut 20 is located on the front bumper section 13 side. The bolt 22 is screwed together from the inside through the washer 21. Then, the bumper 11 is installed with its abutting legs 16a in contact with the vehicle body outer plate 15 and a predetermined gap created between the reinforcing rib portion 13a of the bumper body 12 and the vehicle body outer plate 15. .

As described above, in the structure of this embodiment, the clip 19 is attached to the parallel wall 18 of the leg portion 16, and the nut 20 and bolt 22 of the clip 19 are screwed together, so that the leg portion 16 has a thick wall. There is no need for this, and therefore the problem of surface sinking during resin molding does not occur.

In addition, in this embodiment, the contact leg portion 16a made of resin is
Since it comes into contact with the vehicle body outer plate 15, there is no possibility of scratches or even rust, which would occur if metals come into contact with each other. Furthermore, in the structure of this embodiment, since the abutting leg portion 16a abuts the vehicle body outer plate 15 and there is a gap between the reinforcing rib 13a of the bumper body 12 and the vehicle body outer plate 15, the bumper body 12 No inward tightening force is applied to the vicinity of the leg portion 16, and therefore this portion will not be deformed.

Although the above embodiments have been described using bumpers as an example, the present invention is applicable not only to bumpers but also to the case where other resin parts are attached to metal attachment parts.

[Effect of idea]

As described above, according to the mounting structure for resin parts according to the present invention, the abutting legs that come into contact with the attached part are protruded from the tips of the legs formed on the main body of the part, so that the surface It has the effect of preventing deterioration of appearance due to sink marks, occurrence of rust due to contact between metals, and deformation of parts when installed.

[Brief explanation of drawings]

1 to 3 are diagrams for explaining a bumper mounting structure according to an embodiment of the present invention, in which FIG. 1 is a cross-sectional side view, FIG. FIG. 3 is an exploded perspective view thereof, and FIGS. 4 to 6 are sectional side views showing the conventional bumper mounting structure. In the figure, 11 is a bumper (resin part), 1
3 is a front bumper part (main body part of the part), 15 is a vehicle body outer plate (attached part), 16 is a leg part, 16a is a contact leg part,
17 is a vertical wall, 18 is a parallel wall, and 23 is a fastener.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a structure in which a resin part is attached to a metal part to be attached using a fastener, a part of the body of the resin part on the side to which it is attached, substantially perpendicular to the body part. A leg section is integrally formed with a pair of extending vertical walls and a parallel wall extending substantially parallel to the main body section between the distal ends of the vertical wall, and the fastener is engaged with the parallel wall of the leg section. and a convex abutment leg part that comes into contact with the part to be attached when the resin part is attached is integrally formed on the end face of the leg part facing the part to be attached. mounting structure. (2) The mounting structure for a resin part according to claim 1, wherein the part to be mounted is an outer panel of an automobile body, and the resin part is a bumper.