JPH05213125A - Front grill mounting device for automobile - Google Patents

Abstract

PURPOSE:To prevent mutual distortion in an automobile whose grill and louver are made of synthetic resin, by absorbing the difference in thermal deformation of both the grill and louver. CONSTITUTION:A boss 7 which is fitted into a louver 4 is provided at the back surface of a front grill 3, and a rib 8 is formed at the time boss 7. Besides, a distance U between the top end part of the rib 8 and the top end part of the boss is made larger than the plate thickness E of the louver 4 where the boss 7 is engaged. With this constitution, even if the louver 4 is deformed by thermal expansion, the deformation can be restrained by the boss 7 and the rib 8. Because a distance between the top end part of the rib 8 and the top end part of the boss 7 is made larger than the plate thickness E of the louver 4, a clearance is obtained by the increased amount. It is thus possible to absorb a difference in the thermal deformation of the louver and the front grill which are engaged into the boss.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front grill mounting device for an automobile, which is applied to an automobile whose front grill is made of synthetic resin.

[0002]

2. Description of the Related Art The front grill will be described.
A front grill 3 as shown in FIG. 6 is attached to the front portion 2 of the automobile 1 shown in FIG. This front grill 3
Is made of synthetic resin, and a louver 4 made of synthetic resin for ventilation is arranged on the back surface thereof (see FIG. 6 along line AA in FIG. 7). Louver 4 is grill 3
It has a separate structure from the louver 4 and grill 3
It is fixed by a screw 6 to a boss 5 formed on the back surface of the.

As an attachment device for a front grill of an automobile, there is one disclosed in Japanese Utility Model Laid-Open No. 61-52543. The one disclosed in this publication has a waterproof iron plate floated and attached to the front grill.

[0004]

The grill 3 and the louver 4 in the above-mentioned conventional technique are firmly fixed by the screw 6 by pressing the louver 4 against the boss 5 provided on the back surface of the grill 3. As described above, when the synthetic resin materials such as the grill 3 and the louver 4 are adhered and fixed to each other, there is a problem in that both materials are distorted at a high temperature due to the difference in thermal deformation depending on the material and the shape.

In the mounting device for a front grill of an automobile disclosed in Japanese Utility Model Laid-Open No. 61-52543, the boss is in contact with a plate material corresponding to the louver of this application, and a device corresponding to a rib is provided. Not enough to hold down the strain.

The present invention has been made to solve the above-mentioned conventional problems. The length of the boss formed on the grill is changed, ribs are provided on the boss, and a gap is provided between the grill and the louver. Absorbs the difference in thermal deformation of
An object of the present invention is to provide a front grill mounting device for an automobile, which prevents mutual distortion.

[0007]

As a means for solving the above problems, the present invention provides a louver-separated front grille provided in an automobile, in which a boss fitted to the louver is provided on the back surface of the front grille. At the same time, a rib is formed on the boss, and the distance between the tip of the rib and the tip of the boss is made larger than the plate thickness of the louver with which the boss fits.

[0008]

In this way, since the boss that fits the louver is provided on the back surface of the front grill and the rib is formed on the boss, the louver is fitted and fixed to this boss when the louver is assembled to the grill. .. Even if the louver is thermally expanded and deformed by the fixing and the rib, this deformation can be suppressed. Furthermore, since the distance between the tip of the boss and the tip of the rib is made larger than the plate thickness of the louver,
When assembled, a gap is created between the rib and the louver, that is, the louver is fixed in a floating state, and the difference in thermal deformation between the louver fitted to the boss and the front grill may be absorbed. It will be possible.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 by giving the same reference numerals to the same members as those shown in FIGS. FIG. 1 is an AA of a front grill 3 (see FIG. 6) mounted on the front part 2 of the automobile 1 shown in FIG.
It is sectional drawing which follows the line. That is, in detail, B- in FIG.
FIG. 3 is a sectional view taken along line B-C of FIG. 2. In FIGS. 1 and 2, a boss 7 is formed on the rear surface of the front grill 3 so as to be fitted to a louver 4 that is separate from the front grill 3 arranged on the rear side of the front grill 3. The length of this boss 7 is such that it fits into the louver 4. A rib 8 is formed around the boss 7.

The distance D between the tip 8a of the rib and the tip 7a of the boss 7 is made larger than the plate thickness E of the louver 4 into which the boss 7 is fitted. When assembling, the boss 7 is fitted into the louver 4 and the screw 6 is tightened, so that the louver 4 is fixed to the front grill 3 in a floating state.
FIG. 3 is a sectional view showing the shape of only the front grill 3 taken along the line BB of FIG. Further, FIG. 4 shows a sectional view taken along the line FF of FIG.

Next, the operation of this embodiment will be described. Since the boss 7 that fits the louver 4 is provided on the back surface of the front grill 3 and the rib 8 is further formed on the boss 7, the louver 4 is fitted to the boss 7 when the louver 4 is assembled to the front grill 3. Fixed. By this fixing and the rib 8, it becomes possible to suppress thermal deformation such as warp of the louver. Further, since the distance between the tip of the boss 7 and the tip of the rib 8 is made larger than the plate thickness E of the louver 4,
When assembled, a gap D is generated between the rib 8 and the louver 4, that is, the louver 4 is fixed in a floating state, and the louver 4 fitted to the boss 7 is formed by this gap.
It is also possible to absorb the difference in thermal deformation between the front grill 3 and the front grill 3.

[0012]

According to the present invention, since the boss for fitting the louver is provided on the back surface of the front grill and the rib is formed on the boss, the louver is fitted to the boss when the louver is assembled to the grill. And then fixed. Even if the louver is thermally expanded and deformed by the fixing and the rib, the deformation can be suppressed. Furthermore, since the distance between the tip of the boss and the tip of the rib is made larger than the plate thickness of the louver, when assembled, there is a gap between the rib and the louver, that is, the louver is in a floating state. Since it is fixed, it is possible to absorb the difference in thermal deformation between the louver fitted to the boss and the front grill. This will reduce distortion of the grill and ribs. Further, since the boss is fitted to the louver, the fastening force when assembled is increased and the initial positioning is facilitated.

[Brief description of drawings]

FIG. 1 is a sectional view taken along the line C-C in FIG. 2, showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line BB of FIG. 6, showing a mounting state of the front grill and the louver of the present invention.

FIG. 3B of FIG. 6, showing only the front grill of the present invention.
It is sectional drawing which follows the -B line.

FIG. 4 is an F of FIG. 6 showing the front grill portion of the present invention.
It is sectional drawing which follows the -F line.

FIG. 5 is a perspective view of an automobile for explaining the present invention.

6 is a perspective view of a front grill mounted on the front portion of the vehicle shown in FIG.

7 is a sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Car 3 Front grille 4 Louver 7 Boss 8 Rib D Distance between the tip of the boss and the tip of the rib E Plate thickness

Claims (1)

[Claims] 1. A louver-separated type front grill provided in an automobile, wherein a boss that fits into the louver is provided on a back surface of the front grill, and a rib is formed on the boss, and a tip portion of the rib and the boss. The front grill mounting device for an automobile, wherein the distance from the front end of the louver is made larger than the plate thickness of the louver with which the boss is fitted.