JPH10338089A - Bumper structure of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bumper device of an automobile which can avoid worsening of appearance and the trouble of assembly operation by eliminating the need for a gap between the end face of a plated molding and a stepped surface at the end of a bumper and which will not be easily broken even at the application of external force. SOLUTION: This bumper device has a bumper 5 mounted in such a way as to cover the front end of an automobile, and has a molding member 20 mounted in such a way as to cover the outer surface of the bumper. In this case, slots 5e are provided at the right and left ends 4d of the bumper 5, the outer end of the molding member 20 along the cross direction of the automobile is slidably inserted into the slot 5e, and an appropriate part of the molding member 20 other than the outer end is mechanically secured to the bumper 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper device attached to a front end or a rear end of an automobile, and more particularly to a structure for attaching a decorative molding member to an outer surface of the bumper.

[0002]

2. Description of the Related Art In recent years, due to the trend of so-called retro type automobiles having an atmosphere of an old car, etc., a decorative molding member subjected to plating treatment (hereinafter referred to as a plating mall).
Is mounted on the outer surface of the bumper.

Conventionally, as a structure for attaching the plating molding to a front bumper, a plating molding 101 having a generally bowl-shaped cross section so as to cover a bumper body 100 having a substantially hat-shaped cross section as shown in FIGS. And the plating mall 101 is bolted to the bolt 1
There is a structure fixed to the bolt fixing portion 100a of the bumper main body 100 by an O.02. In this conventional mounting structure, the plating molding 101 is positioned with the end face 101a of the plating molding 101 facing the stepped surfaces of the left and right ends 100b of the bumper body 100.

[0004]

However, since the front bumper 100 and the plating molding 101 have different amounts of thermal expansion, the front bumper 100 is located between the stepped surfaces of the left and right ends 100b and the end surface 101a of the plating molding 101. It is necessary to provide a gap a for absorbing the difference in the amount of thermal expansion. However, the above bumper 100, plating mall 101
Since each of them is a resin molded product, there is a comparatively large dimensional error. Therefore, the gap a tends to vary due to the dimensional error of each part, and as a result, there is a problem that the appearance is deteriorated. In addition, it is necessary to manage the gap at the time of assembling so that the deviation between the left and right gaps a is small, and there is also a problem that the assembling operation is troublesome.

[0005] Here, in order to cope with the above-mentioned problem of appearance deterioration by mechanically fixing the end of the plating molding 101 to the bumper, when an external force acts on the bumper due to contact with a curb, etc. There is also a problem that stress concentrates on the mounting portion of 101 and in an extreme case, the mounting portion is damaged.

The present invention has been made in view of the above-mentioned conventional problems, and eliminates the need for a gap between the end surface of the plating molding and the stepped surface of the end of the bumper, thereby reducing the appearance and the labor of assembling work. It is an object of the present invention to provide a vehicle bumper device which can be avoided and is not easily damaged by an external force.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a bumper device for an automobile, wherein a bumper is attached so as to cover a front end or a rear end of the automobile, and a molding member is attached so as to cover an outer surface of the bumper. Insert holes are provided at the left and right ends of the bumper, and the outer end of the molding member in the vehicle width direction is slidably inserted into the insertion holes. It is characterized by being mechanically fixed to the bumper.

[0008]

According to the bumper device for an automobile according to the present invention, insertion holes are provided at the left and right ends of the bumper, and the insertion portions formed at the outer ends of the molding members are slid into the insertion holes. Since it is inserted as much as possible, the difference in the amount of thermal expansion between the bumper body and the molding member can be absorbed by the sliding operation, and there is no need to provide a gap between the left and right ends and the end surfaces of the molding member. It is possible to prevent the deterioration of the appearance and the problem of gap management due to the provision of the gap, and to reduce the labor of assembling work due to the gap management.

In the present invention, since the outer end of the molding member is slidable instead of being mechanically fixed to the bumper by bolts or the like, when an external force acts on the bumper, stress is applied to the joint of the molding member. There is an effect that the problem of concentration can be avoided and damage to the joint of the molding member can be prevented.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 9 are views for explaining an automobile bumper device according to an embodiment of the present invention, and FIGS. 1 and 2 are exploded perspective views, front views, around a front bumper and a grill of the automobile, and FIGS. Is III-II in FIG.
FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2, and FIG.
FIG. 6 is a perspective view of a plating molding mounted on the front bumper, FIG. 7 is a sectional view taken along the line VII-VII of FIG. 1, FIG. 8 is an exploded perspective view of a headlamp part, and FIG. FIG. 2 is a sectional view taken along line IX-IX in FIG. 1.

In FIG. 1, reference numeral 1 denotes a front grill portion 1a,
1 shows a front cover in which a front bumper portion 1b, a headlight cover portion 1c, a fender portion 1d, and the like are integrally formed. The front cover 1 is arranged so as to cover a front end portion of a vehicle body 10, and a radiator support 11 has a clip 2 attached thereto.
8, attached by bolts 29, 30, nuts 34 and the like. A front portion of the vehicle body 10 is provided with fender panels 10a on both left and right sides of the radiator support 11, and is configured to open and close an engine room with a hood 22.

The front grill portion 1a is formed with a grill opening 4 for introducing traveling wind to the radiator, and a lamp opening 3 for disposing a direction indicator and the like. A radiator grille 21 that has been subjected to a plating process for decoration is attached to the grill opening 4 so as to cover the grill opening 4 with bolts 31, and a lamp assembly 2 is mounted on the lamp opening 3.
An assembly of the cover 4 and the cover 25 is attached by a tapping screw 27 and a nut member 32.

A bumper main body 5 is formed integrally with the front bumper portion 1b so as to protrude along the lower edge of the front cover 1. The bumper body 5 has a substantially hat-like shape having a substantially bowl-shaped ridge 5a at the center and upper and lower flanges 5b, 5b when viewed in a cross section.
A is provided with a bolt fixing portion 5c at every predetermined pitch.

The front bumper portion 1b has a plating molding 20 covering the outer surface of the bumper body 5.
Is installed. The plating molding 20 is made of resin and the outer surface thereof is subjected to plating treatment, and has a substantially similar shape to the ridge portion 5a of the bumper body 5 when viewed in a cross section. Mounting ribs 20a are integrally formed on the back surface of the plating molding 20 at a predetermined pitch.
A positioning pin 20b is formed integrally with a, and a bolt 23 is implanted so as to project rearward.

In the plating molding 20, the positioning pins 20b are inserted into positioning holes 5g formed in the bolt fixing portions 5c of the bumper body 5, and the bolts 23
Is fixed to the bumper main body 5 by inserting a nut 23a from the back side of the bumper main body 5 into the bolt hole 5f of the bolt stopper 5c.

The left and right ends 5 of the bumper body 5
d is formed slightly higher than the convex portion 5a, and a slit-shaped insertion hole 5e is formed in the stepped portion. At the outer end in the vehicle width direction of the plating molding 20, an insertion portion 20c is formed so as to be stepped slightly thinner than other portions. The insertion portion 20c is provided with the insertion hole 5
e. Thus, the outer end of the plating molding 20 does not rattle in the front-rear direction and can slide in the longitudinal direction.

The lamp cover 1c is formed in a substantially cylindrical shape capable of housing and holding the headlamp assembly 12, and a rear edge 1d is formed on the fender panel 10a.
Is engaged with the inner surface of the front edge 10b. A ring-shaped headlamp rim 13 that has been subjected to decorative plating is fitted to the front edge of the lamp opening 2 of the lamp cover 1c, and is fixed by a tapping screw 35 and a nut member 36. An assembly of a headlamp assembly 12 and a headlamp bracket 13 is inserted into the lamp opening 2.

As shown in FIGS. 8 and 9, the headlamp bracket 14 has three mounting legs 14b to 14d on the back surface of a ring-shaped lamp mounting flange 14a.
Is erected by spot welding or the like. The headlamp assembly 12 is fixed to the flange portion 14a of the headlamp bracket 14 with a bolt 33a, and the headlamp bracket 14 is fixed to the leg 1 with a bolt 33b.
The radiator support 11 is fixed to the vehicle body 10 by tightening 4b to 14d around the radiator support 11. In addition,
The upper mounting leg 14b may be fixed to the vehicle body 10 by fastening together with the lamp cover 1c of the front cover 1.

A support 14e is integrally formed between the upper leg 14b and the outer leg 14c.
A front edge 14f of the support portion 14e is fixed to the back surface of the lamp mounting flange portion 14a by spot welding or the like, and a rear end portion 14g located obliquely rearward and abutting against the inner surface of the lamp cover portion 1c. This prevents the portion 1c from being displaced inward in the vehicle width direction.

Next, the operation and effect of this embodiment will be described. In this embodiment, the plating molding 2 is formed on the outer surface of the bumper body 5.
When installing the bumper body 5, the left and right ends 5 of the bumper body 5
d is provided with an insertion hole 5e, and the plating hole 2e is provided in the insertion hole 5e.
Since the insertion portion 20e formed at the outer end of the bumper body 5 is slidably inserted, the difference in the amount of thermal expansion between the bumper body 5 and the plating molding 20 can be absorbed by the above-described sliding operation. There is no need to provide a gap between the stepped surface and the end face of the plating molding, so that it is possible to avoid a decrease in appearance and to avoid a decrease in assembly workability due to gap management.

In the present embodiment, the outer end of the plating molding 20 is slidable instead of being mechanically fixed to the bumper main body 5 with bolts. Therefore, when an external force acts on the bumper main body 5, plating is performed. The problem that stress concentrates on the joint of the molding can be avoided, and damage to the joint of the plating molding can be prevented.

In the present embodiment, the support portion 14e is provided on the headlamp bracket 14, and the rear end portion 14g of the support portion 14e is brought into contact with the inner surface of the lamp cover portion 1c. The rigidity in the width direction can be increased, and the problem that the lamp cover 1c sticks due to external force can be prevented.

In order to prevent the lamp cover portion from sticking, a flange portion is formed on the sheet metal fender panel 10a and a positioning hole is formed in the flange portion. If a structure that engages the positioning pin implanted in the portion 1c is adopted, sticking of the lamp cover portion can be prevented, but a modification is required on the fender panel side, and the mold structure for fender press molding is complicated. However, there is a problem that the versatility of the fender panel is lost, but such a problem does not occur in the present embodiment.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a front portion of an automobile in which a bumper device according to an embodiment of the present invention is employed.

FIG. 2 is a front view of the automobile.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a sectional view taken along line VV of FIG. 2;

FIG. 6 is a perspective view of a plating molding of the bumper device.

FIG. 7 is a sectional view taken along line VII-VII of FIG. 1;

FIG. 8 is an exploded perspective view of a headlamp portion of the automobile.

FIG. 9 is a sectional view taken along line IX-IX of FIG. 1;

FIG. 10 is a perspective view showing a conventional bumper device.

11 is a sectional view taken along line XI-XI in FIG.

12 is a sectional view taken along line XII-XII of FIG.

[Explanation of symbols]

 5 Bumper 20 Plating molding (moulding member) 5d Left and right ends 5e Insert hole 20a Outer end

Claims (1)

[Claims] 1. A bumper device for a vehicle, wherein a bumper is mounted so as to cover a front end portion or a rear end portion of the vehicle, and a molding member is mounted so as to cover an outer surface of the bumper. The molding member is slidably inserted into the insertion hole in the vehicle width direction outer end portion of the molding member, and an appropriate portion of the molding member other than the outer end portion is mechanically fixed to the bumper. An automobile bumper device characterized by the above-mentioned.