JP2003011751A - Structure for assembling component on vehicle body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent one of joining end parts from projecting or contrary denting to the other even when either of two components individually assembled on a vehicle body supposedly deforms. SOLUTION: This structure for assembling a component is so structured that the two components (a bumper 10 and an extension bumper 20) are individually assembled on the vehicle body (a body panel 40), and respective end parts are joined each other. The respective joining end parts 14, 24 of the two components restrain each other without interposing the vehicle body. Even when either of the components deforms, the mutual joining end parts 14, 24 follow and move to the deformation because the respective joining end parts 14, 24 restrain each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for assembling parts to a vehicle body, and more particularly to a structure for assembling two parts such as a rear bumper and its extension bumper to a vehicle body.

[0002]

2. Description of the Related Art For example, a rear bumper and an extension bumper are individually assembled to a vehicle body, and at their joints, the ends of the extension bumper are overlapped with each other inside the end of the rear bumper to form an appearance. I am doing well. The rear bumper is attached to the vehicle body side with a clip at a position near the joint end and is restrained so as not to float outward. A structure for attaching the rear bumper to the vehicle body side using a clip is disclosed in, for example, Japanese Utility Model Publication No. 6-37007.

[0003]

The portion near the joint end of the rear bumper is restrained with respect to the vehicle body side by the clip, but is distorted (deformed) at the time of assembly due to a dimensional error of the clip or the clip joint portion on the bumper side. ) May occur. In addition, even after assembly, the rear bumper may be deformed due to heat deterioration or the like. Due to these factors, the joint end of the rear bumper projects outward with respect to the joint end of the extension bumper located inside the rear bumper, impairing the appearance. The present invention is intended to solve the above-mentioned problems, and an object thereof is that even if one of the two parts individually assembled to the vehicle body is deformed, one of the respective joint ends is different from the other. It is to prevent it from protruding or denting.

[0004]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. According to the invention of claim 1, the two parts are individually assembled to the vehicle body, and the respective end portions are mutually connected. In the component assembling structure configured to be joined, the joining ends of the two components are restrained from each other without interposing the vehicle body. In this way, the individual joint ends are constrained to each other, so that even if any of the components is deformed, the mutual joint ends follow and move. Therefore, it is possible to prevent deterioration of the so-called built-up state in which one of the joint ends of the two parts projects toward the other or is dented in the opposite direction.

The invention according to claim 2 is the structure for assembling parts to a vehicle body according to claim 1, wherein one of the two parts is formed so as to be located inside the surface thereof. One joining end, and the other second joining end formed to cover the outside of the first joining end, the first joining end entering the inside of the second joining end. Mutually bound. According to this aspect of the invention, the first joint end portion is inside the second joint end portion, so that the appearance of the joint end portions of the two components is improved.

According to a third aspect of the present invention, there is provided a structure for assembling parts to a vehicle body according to the second aspect, wherein the first joint end portion is provided inside and inside the second joint end portion. It is constrained in a state of being sandwiched by the retained retainer. By binding the joint ends of the two parts to each other by sandwiching them in this manner, the work for assembling the joint ends so that they can follow each other is improved.

According to a fourth aspect of the invention, there is provided a structure for assembling parts to a vehicle body according to the third aspect, wherein a tip end portion of the retainer expands a gap between the tip end portion and the second joint end portion. The shape is set. Therefore, the first joining end is
The work of inserting between the inner surface of the joining end and the retainer becomes easy.

According to a fifth aspect of the present invention, there is provided a structure for assembling parts to a vehicle body according to the third aspect, wherein the retainer is formed separately from the second joint end portion. It is assembled inside the joint end. In this case, the second
Since the joining end portion can be molded independently of the retainer, it is possible to avoid a complicated molding process.

According to a sixth aspect of the present invention, there is provided a structure for assembling components to a vehicle body according to the third aspect, wherein the joint ends of the two components are the first joint end and the second joint. A lock portion that holds the end portion in an engaged state is provided. Due to the function of the lock portion, the joint end portion of the two parts is not easily released from the constraint and is always stable.

According to a seventh aspect of the present invention, there is provided a structure for assembling components to a vehicle body according to the first aspect, wherein the first and second components are formed so as to be located inside respective surfaces.
A first joining end portion and a second joining end portion positioned so as to cover the outside of the first joining end portion.
-The 2nd junction end is provided with the lock part which engages mutually. In this way, the two parts are provided with the first and second joint ends, respectively, and the first and second joint ends are engaged with the inner side and the outer side in a staggered position. A member for sandwiching the second joining end portion so as not to come off is unnecessary. As a result, the workability for assembling the two parts is improved and the cost can be reduced.

According to an eighth aspect of the invention, there is provided a structure for assembling parts to a vehicle body according to the seventh aspect, wherein the tip end portion of the first joint end portion is between the second joint end portion and the tip end portion. The shape is set to expand the gap. This facilitates the work of engaging the first and second joint ends.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to an assembly structure of a rear bumper of an automobile.
First, the first embodiment will be described with reference to FIGS. 1 is a configuration diagram of one side of the rear bumper viewed from the inside, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG. As shown in these drawings, the rear bumper 10 and its extension bumper 20 are two parts individually assembled to the body panel 40 of the vehicle body. That is, the bumper 10 is fixed to the body panel 40 by a well-known means such as bolting at a portion not shown. The extension bumper 20 is fixed to the body panel 40 by bolts 28 at its base end (FIG. 2).

In the bumper 10 and the extension bumper 20 described above, the joining ends 14 and 24 that are butted against each other and are joined together are in a superposed state so as not to spoil the appearance. That is, the joint end portion 24 (first joint end portion) of the extension bumper 20 is the bumper 1
It is located inside the joint end 14 (second joint end) of No. 0, but the detailed structure will be described later. The main reason for adopting the extension bumper 20 is to use the bumper 10 as a common component only by changing the extension bumper 20 when the size of the vehicle body in the front-rear direction is different.

FIG. 4 is a perspective view of a part of the rear bumper alone as seen from the inside. As is clear from this drawing, upper and lower two-stage ribs 12 are integrally formed inside the portion of the bumper 10 near the joint end portion 14.
Two engaging holes 12a are formed vertically through each of these ribs 12. A retainer 30 having a flat plate shape is attached to the inside of the bumper 10 by utilizing both the ribs 12. Further, the tip end portion of the joining end portion 14 of the bumper 10 is an engaging portion 16 that is bent inward.

FIG. 5 is a perspective view of the retainer 30 seen from the bumper mounting side. On the mounting side of the retainer 30, connecting pieces 32 that are paired up and down individually are integrally formed at two positions on the left and right (four positions in total) corresponding to the ribs 12 of the bumper 10. Among the pair of upper and lower coupling pieces 32, the lower surface of the upper coupling piece has an engagement protrusion 32a, and the lower engagement piece has an opening formed therein to avoid interference with the engagement protrusion 32a. .

By attaching the connecting piece 32 to both ribs 12 of the bumper 10 so as to sandwich it from both upper and lower surfaces, the engaging projections 32a of the connecting piece 32 are engaged with the engaging holes 12a of the rib 12, respectively. (Fig. 3). As a result, the retainer 30 is assembled inside the bumper 10 as described above. The tip portion 34 of the retainer 30 is obliquely bent and formed so as to widen the gap between the joining end portion 14 and the engaging portion 16.

The joint end portion 24 of the extension bumper 20 is formed with a step so as to be inside the surface of the extension bumper 20 (FIG. 2). As a result, the joint end portion 24 is positioned inside the joint end portion 14 of the bumper 10 as described above, and at the same time, the joint end portion 24 is inserted between the engaging portion 16 and the retainer 30. As a result, the joint end portion 24 is sandwiched between the engaging portion 16 and the retainer 30 inside the joint end portion 14, and the joint end portions 14 and 24 are in a state of being restrained from each other.

The joining end portion 24 is provided with an engaging claw 26 on its outer surface. The engaging claw 26 is engaged with the engaging portion 16 in a state where the joining end portion 24 is sandwiched between the engaging portion 16 and the retainer 30 (FIG. 2). Due to this engagement, the joint end portion 24 inserted between the engagement portion 16 and the retainer 30 is locked so as not to easily come off. Therefore, the engagement portion 16 and the engagement claw 26 form a “lock portion”.

Since the tip portion 34 of the retainer 30 is formed as described above, a large gap is secured between the engaging portion 16 and the retainer 30, and the joining end portion 24 can be easily inserted. However, even if this gap is large, the joint end 24 in the locked state where the engaging portion 16 and the engaging claw 26 are engaged is reliably sandwiched between the engaging portion 16 and the retainer 30.

In the bumper 10 and the extension bumper 20 exemplified as the two parts individually assembled to the body panel 40 (vehicle body), the respective joint ends 14 and 24 are constrained to each other. That is, in the present embodiment, the joint end portion 24 of the extension bumper 20 is sandwiched and constrained by the engaging portion 16 and the retainer 30 inside the joint end portion 14 of the bumper 10. As a result, even if either the bumper 10 or the extension bumper 20 is deformed due to distortion or heat deterioration during assembly with respect to the body panel 40, the mutual joint ends 14 and 24 move along with each other. However, the normal joining state is maintained.

Next, the second embodiment will be described with reference to FIGS. FIG. 6 is a configuration diagram showing the separated state of the two parts forming the rear bumper from the inside, and FIG. 7 is a configuration diagram showing the joined state of the two parts from the inside. Further, FIG. 8 is C of FIG.
-C is an enlarged sectional view in the direction of the arrow, FIG. 9 is the same as DD of FIG.
It is an expanded sectional view of the direction of an arrow. The bumper 50 and its extension bumper 70 shown in these drawings are also two parts that are individually assembled to the body panel of the vehicle body.

The respective joint ends 54, 74 (first or second joint ends) of the bumper 50 and the extension bumper 70 are individually bent inward to engage the engaging portion 5.
6, 76 are configured. The joint ends 54 and 74 are
A plurality of protruding pieces 58, 78 extending toward each other are provided. These protruding pieces 58, 78
Are alternately arranged in the vertical direction of the joining ends 54 and 74, and when the joining ends 54 and 74 are butted, they do not interfere with each other and are positioned so that one of them fits next to the other. ing.

The projecting pieces 58 and 78 are connected to the joint end portions 54 and 7, respectively.
It is set so as to be located inside the mating end portion of the other side when the four are abutted. The protruding pieces 58 and 78 are
The engaging grooves 60, 80 opened outward respectively are provided, and the engaging grooves 60, 80 are engaged with the engaging portions 76, 5 of the mating side.
6 are adapted to be engaged. In this engaged state, the joint ends 54 and 74 are positioned so as to cover the projecting pieces 78 and 58 on the mating side from the outside (FIGS. 8 and 9). The tip portions 62 and 82 of the projecting pieces 58 and 78 are set to be inwardly inclined so as to widen the gap between the mating joint portions 74 and 54.

Both joint ends 54 and 74 are engaged with each other by the engaging portion 5
6, 76 and the engaging grooves 60, 80 of the protruding pieces 58, 78 are engaged with each other, and they are alternately located on the inner side and the outer side,
These engagements are restrained so as not to be disengaged. Therefore, the engaging portions 56 and 76 and the engaging grooves 60 and 80 are connected to each other at the joining end portion 5.
The joint ends 54 and 74 themselves function as the retainer 30 in the first embodiment while constituting the “lock portion” of the valves 4 and 74. As described above, in the second embodiment, both joint end portions 54 and 74 are “first joint end portions” at the protruding pieces 58 and 78, and are “second joint end portions” at the other portions.

As described above, by setting the projecting pieces 58 and 78 to have such a size that they fit between the mating parts (FIG. 7), the vertical position between the joint ends 54 and 74 can be obtained. The deviation can be regulated. Further, by inclining the tip portions 62 and 82 of the projecting pieces 58 and 78, the work of engaging the individual engagement grooves 60 and 80 with the mating engagement portion becomes easy.

Although the preferred embodiment of the present invention has been described above with reference to the drawings, this embodiment can be easily changed or modified without departing from the spirit of the present invention. For example, in the first embodiment described above, the “first joining end portion” located inside the surface of the component is the joining end portion 24 of the extension bumper 20, and covers the outside of the “first joining end portion”. "Second joint end" formed as
Is a joint end 14 of the bumper 10. However, since these relationships are relative, the joint end 14 is
Of course, it is also possible to set the “joint end portion” and the joint end portion 24 as the “second joint end portion”.

Further, the engaging portion 16 and the engaging claw 2 of the first embodiment.
6 may be replaced with a structure in which the protrusion formed inside one joint end 14 and the hole formed in the other joint end 24 are engaged with each other, or the joint end 24.
It is also possible to replace with a structure in which the retainer 30 and the retainer 30 are engaged with each other. Further, in the first embodiment, the joining end portion 24 is easily inserted between the engaging portion 16 and the retainer 30 instead of forming the tip portion 34 of the retainer 30 as described above, or Joint end 2
You may incline the tip of 4 so that it may be inserted easily.

[Brief description of drawings]

FIG. 1 is a configuration diagram of one side of a rear bumper viewed from the inside.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG.

FIG. 4 is a perspective view of a part of a single rear bumper seen from the inside thereof.

FIG. 5 is a perspective view of the retainer as seen from the bumper mounting side.

FIG. 6 is a configuration diagram of a separated state of two parts constituting the rear bumper as viewed from the inside.

FIG. 7 is a block diagram of the joining state of two parts as seen from the inside.

FIG. 8 is an enlarged sectional view taken along the line CC of FIG.

9 is an enlarged cross-sectional view taken along the line DD of FIG.

[Explanation of symbols]

10,50 bumper 14,54 Joint end 20,70 Extension bumper 24,74 junction end 30 retainer 40 body panel (car body)

Claims (8)

[Claims] 1. A component assembling structure in which two components are individually assembled to a vehicle body and respective end portions are joined to each other, wherein each joining end portion of the two components is the vehicle body. A structure for assembling parts to a vehicle body that is restrained from each other without intervention. 2. The structure for assembling parts to a vehicle body according to claim 1, further comprising a first joint end formed so that one of the two parts is located inside a surface thereof. The other has a second joint end formed so as to cover the outside of the first joint end, and the first joint end enters the inside of the second joint end and is restrained from each other. Structure for assembling parts to the vehicle body. 3. The structure for assembling components to a vehicle body according to claim 2, wherein the first joint end is sandwiched between the inside of the second joint end and a retainer provided therein. The structure for assembling parts to the vehicle body that is restrained in the locked state. 4. The structure for assembling components to a vehicle body according to claim 3, wherein the tip end portion of the retainer is set to a shape that widens a gap between the retainer and the second joint end portion. Part assembly structure. 5. The structure for assembling parts to a vehicle body according to claim 3, wherein the retainer is formed separately from the second joint end portion, and is assembled inside the second joint end portion. The structure for assembling parts to the car body. 6. The structure for assembling components to a vehicle body according to claim 3, wherein the joint ends of the two components engage the first joint end and the second joint end. A structure for assembling parts to a vehicle body that has a lock part that holds it on. 7. The structure for assembling parts to a vehicle body according to claim 1, wherein the two parts are formed so as to be located inside the respective surfaces, and a first joining end part. A first joint end portion and a second joint end portion positioned so as to cover the outside of the joint end portion; and a lock portion for engaging the first and second joint end portions of the two parts with each other. Parts assembly structure. 8. The structure for assembling parts to a vehicle body according to claim 7, wherein the tip end portion of the first joint end portion is set to a shape that widens a gap between the tip end portion and the second joint end portion. The structure for assembling parts to the car body.