JPH0737826U - Bumper mounting structure - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The vertical mounting clearance required for temporary fixing can be set small, and the bumper can be temporarily fixed in place easily. In the bumper mounting structure for mounting the bumper 1 to the vehicle body 2, the vehicle body is provided with a bracket 5 provided with a substantially trapezoidal temporary fixing projection 12 whose widthwise dimension is reduced upward, Temporary fastening recesses 13 to be engaged with the bumper by sandwiching the temporary fastening projections from both sides.
The engaging projections 14 are provided, and the engaging claw portions 15 are formed on both sides of the opening end of the temporary fixing concave portion so as to face each other with a space substantially corresponding to the widthwise dimension of the uppermost portion of the temporary fixing convex portion. At the same time, a guide portion 16 for introducing the temporary fixing convex portion into the temporary fixing concave portion is formed on the outer side of the engaging claw portions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bumper mounting structure, and more particularly to a bumper mounting structure that can be fixed after temporarily fixing the bumper to a vehicle body and positioning it.

[0002]

[Prior art]

 Bumpers are provided at the front and rear of the vehicle body mainly for the purpose of protecting functional components such as the vehicle body and lamps when the vehicle collides with other vehicles or objects. However, since the bumper is provided over the entire width at the front and rear ends of the vehicle body, not only has a great influence on the design of the vehicle body, but it is also greatly related to the aerodynamic characteristics of the vehicle body.

The bumper is connected and fixed to a front cross member or a rear cross member provided in a bridging shape at a front end portion or a rear end portion of the vehicle body by using screw means or the like.

As described above, the bumper is a large component provided over the entire width of the vehicle, and it is difficult to mount the bumper at a predetermined position on the vehicle body with high accuracy.

In order to solve the above-mentioned problem, for example, as in the invention disclosed in JIII Journal of Technical Disclosure No. 92-26547, after temporarily fixing the bumper to the vehicle body, the bolt is tightened to a predetermined position. A mounting structure that can be mounted in a position with high accuracy has been proposed.

[0006]

[Problems to be solved by the device]

 The device disclosed in the above-mentioned public technical report is provided with a temporary fixing projection on the upper edge of a mounting bracket provided on the vehicle body side, and an engagement for engaging the temporary fixing projection on the outer surface of the bracket. It is configured by providing an engagement protrusion having a hole. The bumper is temporarily fixed to the vehicle body by engaging the temporary fixing projection and the engaging hole, and then the fixing bolts inserted through the bolt insertion holes provided in the bumper are fixed to the bracket. It is connected and fixed to the vehicle body by being screwed into.

In the mounting structure of the bumper, in order to engage the engaging hole with the temporary fixing projection, the bumper must be lifted until the engaging projection is located above the temporary fixing projection. I won't.

However, a lamp and the like are arranged above the bumper. Therefore, a mounting clearance for mounting the bumper on the vehicle body must be secured between the lamp and the like. As a result, the clearance between the upper edge of the bumper attached to the vehicle body and the lower edge of the above-mentioned lamps becomes large, and the appearance of the vehicle body deteriorates significantly, causing a design problem.

Further, in the above-mentioned mounting structure, the temporary fixing projection and the engaging hole cannot be engaged unless the engaging projection is accurately positioned above the temporary fixing projection. Yes.

Therefore, precision is required for the work of temporarily fixing the bumper to the vehicle body, and there is a problem that the work efficiency decreases.

The present invention was devised under the circumstances described above, and it is possible to set the vertical mounting clearance required for temporary fixing to be small, and it is extremely easy to place the bumper at a predetermined position. It aims to provide a bumper mounting structure that can be temporarily fixed.

[0012]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention takes the following technical means.

That is, the invention of the present application is a bumper mounting structure for mounting a bumper to a vehicle body, wherein the vehicle body is provided with a bracket having a substantially trapezoidal temporary fixing projection whose width direction dimension decreases upward. On the other hand, the bumper is provided with an engaging projection having a temporary fixing concave portion which is engaged with the temporary fixing convex portion so as to sandwich the temporary fixing convex portion from both sides. Guide portions for forming the engaging claw portions facing each other with a gap substantially corresponding to the widthwise dimension of the uppermost portion, and for introducing the temporary fixing convex portions into the temporary fixing concave portions on the outside of the engaging claw portions. Is formed.

[0014]

[Function and effect of device]

 In the bumper mounting structure according to the present invention, the bracket provided on the vehicle body is formed with a substantially trapezoidal temporary fixing convex portion whose widthwise dimension decreases upward.

On the other hand, the engaging projection provided on the bumper is formed with a temporary fixing concave portion which is engaged with the temporary fixing convex portion so as to sandwich the temporary fixing convex portion from both sides.

On both sides of the opening end of the temporary fixing concave portion, engaging claw portions facing each other are formed at intervals corresponding to the widthwise dimension of the uppermost portion of the temporary fixing convex portion. Therefore, the temporary fixing projection and the temporary fixing recess are engaged with each other only by raising the engaging projection to near the upper end of the temporary fixing convex. Then, by displacing the bumper downward, the engaging claw portions are surely engaged with both side portions of the temporary fixing convex portion. As a result, the bumper is reliably engaged with the vehicle body.

Therefore, unlike the related art, it is not necessary to lift the bumper until the engaging protrusion is located above the temporary fixing protrusion. Therefore, the vertical clearance required to temporarily secure the bumper is significantly reduced. As a result, the clearance between the bumper and a part such as a light provided above the bumper is reduced, and the appearance can be significantly improved. Further, aerodynamic characteristics and the like are also improved.

Moreover, in the present invention, a guide portion for introducing the temporary fixing convex portion into the temporary fixing concave portion is formed outside the engaging claw portion.

By providing the guide portion, the engaging projection is brought into contact with the temporary fixing convex portion, the engaging projection is guided to a predetermined engaging position of the engaging concave portion, and the temporary engaging convex portion is guided. The stop convex portion and the temporary fixing concave portion are automatically engaged with each other.

Therefore, the work for temporarily fixing the bumper to the vehicle body is significantly facilitated, and the work efficiency can be greatly improved. In addition, the provision of the engaging protrusion in the guide portion allows the temporary fixing convex portion and the temporary fixing concave portion to engage with each other when the guide portion is lifted to a required height. Therefore, the amount of upward movement of the bumper can be minimized. Therefore, the clearance required for temporary fixing can be further reduced.

[0021]

[Explanation of Examples]

 Hereinafter, an embodiment according to the present invention will be specifically described with reference to FIGS. 1 to 3.

In this embodiment, the present invention is applied to a mounting structure of a front bumper 1 provided at the front of a vehicle body.

A front cross member 3 extending in the vehicle width direction is provided at the front end of the vehicle body 2. The front bumper 1 according to this embodiment is connected and fixed to the front cross member 3 with mounting bolts 4 and 4.

Brackets 5 and 5 to which the mounting bolts 4 and 4 are screwed are welded to the front surface of the front cross member 3, and the front bumper 1 is mounted to the mounting holes 6 and 6 through the mounting holes 6 and 6. By screwing the bolts 4 and 4 onto the bracket 5, the bolts 4 and 4 are connected and fixed to the vehicle body.

As shown in FIG. 2, the bracket 5 has a front wall portion 8 which is located at a predetermined distance from the front surface of the front cross member 3, and extends from both sides of the front wall portion 8 toward the vehicle body. A pair of legs 9 and 9 and joints 10 and 10 formed by bending the legs 9 and 9 along the front surface of the front cross member 3.

A bolt insertion hole 11 is provided in the front wall portion 8, and a weld nut 7 is welded to the rear peripheral edge portion of the bolt insertion hole 11.

At the upper edge of the front wall portion 8, as shown in FIG. 2, an approximately trapezoidal temporary fixing convex portion 12 whose widthwise dimension decreases upward is formed to extend.

On the other hand, the front bumper 1 according to the present embodiment is integrally formed of resin, and the engaging protrusion 14 having the temporary fixing recess 13 is integrally formed above the mounting hole 6 on the back surface. .

The engaging projection 14 is formed to extend substantially horizontally toward the front cross member 3, and the temporary fixing projection 12 is sandwiched between the opening ends of the temporary fixing recess 13 from both sides. A pair of engaging claws 15 and 15 to be engaged are formed.

The facing distance A between the inner ends of the engaging claws 15 and 15 is set to be substantially equal to the widthwise dimension a of the uppermost portion of the temporary fixing projection 12.

On the other hand, on the outer side of the engaging claws 15 and 15 facing the vehicle body, a guide is formed that is cut out from the inner end of the engaging claws 15 and 15 outward in the width direction. Portions 16 and 16 are formed respectively.

The facing distance B at the tips of the guide portions 16 and 16 is set to be larger than the width b of the base end portion of the temporary fixing projection 12.

The procedure for mounting the bumper having the above structure will be described below. As shown in FIG. 3, when the front bumper 1 is brought close to the front cross member 3 and the tips of the engaging projections 14 and 14 are brought into contact with the front surface of the temporary fixing projection 12, the temporary fixing projection is formed. The part 12 is guided on the central axis in the width direction of the engaging projection 14 so as to be guided by the guide parts 16, 16. In this state, when the bumper 1 is lifted and pressed against the vehicle body, the engaging projection 14 is displaced to the upper end portion of the temporary fixing convex portion 12, and the temporary fixing convex portion is placed in the temporary fixing concave portion 13. To be entered.

Thereafter, when the lifting force is released, the front bumper 1 is displaced downward and the engaging projection 14 is displaced downward, so that the engaging claw portions 15 are formed on both sides of the temporary fixing projection 12. , 15 are locked. As a result, the temporary fixing concave portion 13 is engaged with the temporary fixing convex portion 12 so as to sandwich the temporary fixing convex portion 12 from both sides, and the front bumper 1 is temporarily fixed to the vehicle body.

In the above state, as shown in FIG. 3, the axis of the bolt insertion hole 11 and the weld nut 7 provided in the bracket 5 and the axis of the mounting hole 6 provided in the front bumper 1 are aligned. The mounting bolt 4 inserted into the mounting hole 6 is screwed into the weld nut 7 through the bolt insertion hole 11 so that the bumper 1 is fixedly connected to the front cross member 3. To be done.

In the bumper mounting structure according to the present embodiment, only by raising the engaging protrusion 14 to the vicinity of the uppermost part of the temporary fixing convex portion 12, the temporary fixing convex portion 12 and the temporary fixing convex portion 12 are The recess 13 is engaged.

Therefore, the amount of lifting for temporarily fixing the front bumper 1 is significantly reduced. Therefore, it is possible to set a small clearance with the light or the like provided above the bumper. As a result, the appearance of the front part of the vehicle body is significantly improved.

Moreover, in the present embodiment, guide portions 16, 16 are provided for guiding the temporary fixing convex portion 12 to the engaging position with respect to the temporary fixing concave portion 13. Therefore, the front bumper 1 can be positioned at a predetermined mounting position only by bringing the engaging projection 14 into contact with the temporary fixing projection 12. Therefore, the installation work is significantly facilitated, and the work efficiency can be significantly improved.

Further, since the clearance between the front bumper 1 and the lights provided above the front bumper can be set small, aerodynamic characteristics and the like can be improved.

The scope of the present invention is not limited to the above embodiments. Although the present invention is applied to the mounting structure of the front bumper 1 in the embodiment, it may be applied to the mounting structure of the rear bumper.

Further, in the embodiment, the engaging projection 14 is integrally formed so as to project from the back surface of the bumper 1, but other components may be separately attached to the back surface of the bumper.

Further, in the embodiment, the temporary fixing structure is configured by using the bracket 5 to which the mounting bolt 4 is screwed, but a bracket may be formed separately for only temporary fixing.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a bumper mounting structure to which the present invention is applied.

FIG. 2 is an exploded perspective view of a main part of a pumper mounting structure according to the present invention.

FIG. 3 is a cross-sectional view of essential parts showing a state in which a bumper is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front bumper 2 Vehicle body 5 Bracket 12 Temporary fixing convex part 13 Temporary fixing concave part 14 Engaging protrusion 15 Engaging claw part 16 Guide part

Claims (1)

[Scope of utility model registration request] 1. A bumper mounting structure for mounting a bumper to a vehicle body, wherein the vehicle body is provided with a bracket provided with a substantially trapezoidal temporary fixing projection whose width direction dimension is reduced upward. , An engaging protrusion having a temporary fixing recess that is engaged so as to sandwich the temporary fixing convex from both sides is provided. And a guide portion for introducing the temporary fixing convex portion into the temporary fixing concave portion is formed on the outer side of these engaging claw portions with a space substantially corresponding to Yes, the bumper mounting structure.