JP3931935B2 - Headlamp mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
When a headlamp is attached to the body of an automobile, alignment with the fender is one element that keeps the appearance good when trying to attach the headlamp to the corner position of the body along the outer shape. In this structure, the present invention relates to a grommet for mounting a headlamp and a headlamp mounting structure using the grommet.
[0002]
[Prior art]
Conventionally, when a headlamp is mounted at a corner at the front of the vehicle so that it is substantially flush with the vehicle body or so that the outer shape is smooth, the lens of the lens and the housing constituting the outer shape of the headlamp is mounted on the vehicle body. Smoothly placed on the surface, the housing is fixed to the lamp support bracket, and the housing edge is attached along the periphery of the fender.
[0003]
As shown in FIG. 9, the lamp support bracket 2 is spot welded to the lower portion of the hood lock member 1 arranged in the vehicle body width direction at the front of the vehicle body, and the hood lock member 1 and the fender 3 are screwed together. A mounting hole 1a is formed on the upper surface of the hood lock member 1, the surface of the lamp support bracket 2 faces the front of the vehicle body, and a mounting hole 2a is formed around the through hole 4 and its periphery. The lamp body 5 is provided with a plurality of brackets 6 having holes 6a, and each hole 6a corresponds to each mounting hole 1a, 2a on the vehicle body side, and these mounting holes 1a, 2a are fastened with bolts. Or it is stopped by a partly engaging member. Some mounting structures consist of part of the mounting holes 1a and 2a as reference holes, and some have long holes to increase the degree of freedom (see Japanese Utility Model Publication No. 63-35860). is there.
[0004]
However, when positioning the lamp body 5 with respect to the three members of the hood lock member 1, the lamp support bracket 2 and the fender 3, the front side inner side, the upper side rear side and the side rear side of the lamp body 5 (for convenience, three sides). Are arranged flush with each other or in a smooth manner, but the surface alignment (positional relationship) with the fender 3 on the rear side of the side surface is particularly complicated, so that simple engagement means, that is, the upper center 1 of the housing constituting the headlamp, There has been proposed a structure in which an insertion piece projecting in the longitudinal direction of the vehicle body is provided at a place and temporarily held so that the installation work becomes a simple procedure (see JP-A-8-91115).
[0005]
[Problems to be solved by the invention]
By the way, the front part of an automobile is a place that is recognized with a strong impression in terms of appearance, and is also an important place in terms of production. Therefore, it is desirable that the lamp body 5 and the fender 3 are assembled without causing a step, a shift, a distortion, or the like that stands out on the mating surface.
However, by tightening the hood lock member 1 and the fender 3, the dimensional accuracy of the fender 3 with respect to the mounting portion of the lamp main body 5 is difficult to obtain, and the mounting is possible even if the hole 6a on the lamp main body 5 side is elongated. There is a risk that steps, deviations, and distortions deviating from design tolerances may occur between the lamp body 5 and the fender 3. In addition, since this is not the case, the lamp body 5 is assembled while paying attention to the three surfaces, which leads to a reduction in work efficiency.
[0006]
An object of the present invention is to provide a headlamp mounting structure for simplifying the work of a lamp main body that is mounted at a position in contact with three surfaces.
[0007]
[Means for Solving the Problems]
For the present invention to achieve the above object, a first aspect of the invention, the headlamp mounting structure, to form a boss that extends in the width direction of the vehicle body to the lamp body to form a seat surface at the base of the boss, lamp Attach a grommet with a springy head that expands and contracts to the hole formed in the surface of the support bracket facing the vehicle width direction,
The boss is inserted into the grommet so that the head contracts and is supported by the lamp support bracket, and the fender side of the lamp body is set to abut on a fender connected to the lamp support bracket when the head is returned. It is characterized by.
[0008]
According to a second aspect of the invention, in the invention according to the first, the tongue piece projecting from the oblique head of the grommet into contact with the seating surface of the lamp body, the body of the lamp body by the spring force of the tongue It is characterized by being biased outward.
[0009]
The invention according to claim 3, in the invention of claim 1 or claim 2, wherein the fender side outside of the lamp body provided positioning ribs, through the positioning ribs the lamp body by the spring force of the grommet said It is characterized by being in pressure contact with the fender.
[0010]
A fourth aspect of the present invention, in any one of the claims 1 to 3, in the vehicle width direction member, wherein the lamp support bracket is welded, and a wherein the fender is screwed To do.
[0011]
The grommet fitted into the lamp support bracket is arranged so that the axial direction of the inner hole is in the vehicle body width direction, and a spring-like tongue piece is formed on the grommet head. The lamp main body with the boss inserted through the inner hole of the grommet is pushed to the outside of the vehicle body, and the outer end of the lamp main body can be adjusted to a position where the alignment with the fender becomes a design value by spring force or hand. Therefore, the spring shape may be a tongue piece or a coil shape.
In addition, a plate-shaped bracket is projected from the lamp body, and when the lamp body is placed in a predetermined position, the lamp body is fixed by screwing so that the vertical position on the vehicle body side is determined by the bracket. The lamp body is a combination of a lens and a housing, and the boss and bracket provided integrally may be formed on either the lens or the housing.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
First, a grommet for temporarily fixing the lamp body in the configuration in which the lens surface of the headlamp of an automobile is installed smoothly with the vehicle body will be described.
The grommet 7 shown in FIG. 1 is formed with an insertion portion 8 having an inner hole 8a and a flange-shaped head 9. A tip 8 of the insertion portion 8 is formed with a taper 8b for facilitating insertion of the grommet 7, and is removed from the outer periphery. A stopper (back protection piece) 8c (see FIG. 3) for prevention is provided. As shown in FIG. 1 to FIG. 3, the stopper 8c is surrounded by a U-shaped groove and has a spring property, and an inserted plate (lamp support bracket 2) is inserted in the gap between the rear end of the stopper 8c and the head 9. It will be sandwiched.
[0013]
As shown in FIGS. 1 and 4, a pair of tongue pieces 10 are provided symmetrically on the head 9 of the grommet 7, and the tip of the tongue piece 10 slightly curved toward the head protrudes obliquely upward in the air. A portion of the tongue piece 10 located on the extension line of the inner hole 8a is cut out in an arc shape, and the tongue piece 10 has elasticity in the axial direction of the inner hole 8a. Further, a relief groove 9a is provided in the head 9 so that the head surface becomes flat when the tongue piece 10 is pressed against the head 9. A taper 9b is also formed on the head 9 side of the inner hole 8a.
[0014]
Next, the lamp body 5 and the vehicle body side to which it is attached will be described.
As shown in FIGS. 6 and 7, a lamp support bracket 2 is welded to a lower portion of a hood lock member 1 extending in the vehicle body width direction, and one side of the lamp support bracket 2 is bent so as to face the vehicle body width direction. Two holes 11a for mounting the grommets 7 are provided in the lateral surface 11 side by side in the vertical direction. A front surface 12 of the lamp support bracket 2 is provided with a hole 12a into which the lamp body 5 is inserted, and a fixing hole 12b is formed on the side. The hood lock member 1 is also provided with a mounting hole 1a. In this structure, the fender 3 is screwed to the hood lock member 1.
[0015]
As shown in FIG. 6, the lamp body 5 has a housing 5 a and a lens 5 b that are integrally assembled, and two bosses 13 are arranged in the vertical direction on the lateral surface side of the lamp support bracket 2. A flat seat surface 14 is formed at the base portion to which the boss 13 is attached, and the tongue piece 10 formed on the grommet 7 is received. Further, plate-like brackets 6 are provided on the upper and lower sides of the lamp body 5 on the fender side, and are extended rearward and downward. The bracket 6 has a long hole 6a in the vehicle body width direction.
[0016]
The boss 13 of the lamp body 5 is fitted into the insertion portion 8 in a hollow shape as shown in FIG. 8A, and comes into pressure contact with the inner hole 8a of the grommet 7 by radial elasticity. As shown in FIG. 8B, positioning ribs 15 are formed on the housing 5a on the fender side of the lamp body 5.
[0017]
Next, the procedure for assembling the lamp body 5 will be described.
First, as shown in FIG. 7, the grommet 7 is attached to the hole 11 a in the lateral surface 11 of the lamp support bracket 2. Then, the boss 13 of the lamp body 5 is inserted into the inner hole 8a formed in the grommet 7 and held. In this state, the lamp body 5 is pressed against the fender 3 side by the spring force of the tongue piece 10.
At that time, the gap n between the fender 3 and the lamp body 5 is made constant by the rib 15 of the lamp body 5, so that the step size is regulated, and the outer end position of the lamp body 5 is within the design tolerance of the step size. Will fit. When the lamp body 5 is in the vertical position on the vehicle body side, the long hole 6a of the bracket 6 is aligned with the mounting holes 1a and 12b, and the lamp body 5 is fixed by screwing. The numerical value of the interval n may be zero or take a certain value.
[0018]
As described above, when the lamp body 5 is temporarily fixed, the lamp body 5 can move in the width direction of the vehicle body, and the rib 15 of the lamp body 5 abuts the fender 3 so that it is constant regardless of the dimensional accuracy with the fender 3. In this case, rattling can be prevented by the spring property of the grommet 7.
Even when the lamp body 5 is screwed to the lamp support bracket 2 and the hood lock member 1 without being aware of the operator when the assembly work is performed on the line, the rib 15 is fendered by the spring property of the grommet 7. Since it is biased to the side 3, it is possible to absorb steps and variations that deviate from the design values of the lamp body 5 and the fender 3, and to stably supply the product shape.
[0019]
【The invention's effect】
From the above description, in the invention of claim 1 , in the mounting structure in which the grommet is mounted on the lamp support bracket and the lamp body is mounted toward the front of the vehicle body via the grommet, the lamp body is mounted on the grommet. The lamp body can be moved between itself and the fender, and the spring body of the grommet can press and temporarily fix the lamp body against the fender. Further, since the seating surface of the lamp body is pressed in the axial direction of the boss, the lamp body can be moved smoothly and the workability is good.
In this way, the positional relationship between the lamp main body and the fender becomes constant by assembling the lamp main body with reference to the contact surface with the fender while ensuring the flexibility of the lamp main body in the width direction of the vehicle body. Therefore, it is possible to produce an automobile having a headlamp having a constant step with the fender.
Further, temporary holding is possible with the grommet, and the number of tightening points is reduced, and the number of assembling steps is reduced, thereby improving workability.
[0020]
According to the invention of claim 2, in the invention of claim 1 , the lamp body is moved in the axial direction of the boss by pressing the seat surface of the lamp body with the tongue piece of the grommet, so that the friction is reduced and the work is smoothed. be able to.
In the invention of claim 3, in the invention of claim 1 or claim 2 , since the rib of the lamp body contacts the fender, the rigidity of the rib ensures dimensional accuracy, and the lamp body is placed at a fixed position with respect to the fender. It can be reliably arranged.
In the invention of claim 4, in the invention of any one of claims 1 to 3, although the lamp support bracket and fender without dimensional accuracy is obtained because it is screwing the lamp body a contact surface with the fender Since it is used as a reference, the step with the fender can be kept within the allowable range of the design value, and variations can be absorbed.
[Brief description of the drawings]
FIG. 1 is a side view of a grommet according to an embodiment of the present invention.
2 is a cross-sectional view of the grommet of FIG. 1 along the line AA in FIG.
3 is a cross-sectional view of the grommet in FIG. 1 taken along the line BB in FIG.
4 is a top view of the grommet in FIG. 1. FIG.
5 is a bottom view of the grommet in FIG. 1. FIG.
6 is a development view showing a lamp body mounting structure using the grommet of FIG. 1; FIG.
7 is a development view showing a grommet mounting location of the mounting structure of FIG. 6. FIG.
FIG. 8 is a schematic diagram for explaining a state when the lamp main body of the mounting structure of FIG. 6 is mounted with a plane cross section on the (a) grommet side and (b) the fender side.
FIG. 9 is a development view showing a conventional lamp body mounting structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hood lock member 1a Mounting hole 2 Lamp support bracket 3 Fender 5 Lamp main body 7 Grommet 8 Insertion part 8c Retrograde prevention piece 9 Head part 10 Tongue piece 11a Hole 12b Mounting hole 13 Boss 14 Seat surface 15 Rib

Claims (4)

A boss extending in the vehicle body width direction is formed on the lamp body, a seating surface is formed on the base of the boss, and a spring head that expands and contracts is provided in a hole formed on the surface of the lamp support bracket facing the vehicle body width direction. Wearing grommet
The boss is inserted into the grommet so that the head contracts and is supported by the lamp support bracket, and the fender side of the lamp body is set to abut on a fender connected to the lamp support bracket when the head is returned. A headlamp mounting structure characterized by Claims, characterized in that said tongue projecting from the oblique head of the grommet into contact with the seating surface of the lamp body, and so as to bias the lamp body outside the vehicle body by the spring force of the tongue Item 1. A headlamp mounting structure according to Item 1 . The positioning rib provided on the fender side outside of the lamp body, according to claim 1 or claim, characterized in that the pressure-contact to said fender through said positioning ribs the lamp body by the spring force of the grommet 2. The headlamp mounting structure according to 2. Members of the vehicle body width direction, the lamp support bracket is welded, and the headlamp mounting structure according to any one of claims 1 to 3 wherein the fender is characterized in that it is screwed.

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