JP4203876B2 - Front bumper side connection structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coupling structure between a front bumper side and a fender connected to the front bumper side in a vehicle such as a passenger car.
[0002]
[Prior art]
In this type of vehicle, when the front bumper is coupled to the fender, for example, the front bumper side (panel material) 1 and the fender (panel material) 2 are coupled as shown in FIG. In this case, a resin retainer 3 is inserted between the front bumper side 1 and the fender 2 and fastened and fixed at three locations as indicated by arrows A, B, and C in the illustrated example.
[0003]
In addition, as shown in FIG. 8, the front bumper side 1 and the fender 2 are fastened by the grommet / screw 4 in the arrow C place.
[0004]
By the way, in the collision test, evaluation is performed from body deformation due to external impact, and the collision performance is verified. Shock absorption refers to the ability of a bumper that has received an external impact to slide on the mounting site without letting it directly transmit to the fender (mounting body), and to release the shock (absorption), such as “damageability” is called.
[0005]
In the collision test, a collision object called a barrier (wall) is used, and the amount of barrier biting (intrusion amount) in the body when the barrier collides is measured. In this case, there are a fixed barrier and a moving barrier. Here, the barrier is fixed and the vehicle side moves, that is, the vehicle is made to collide with the fixed barrier and the damage degree of the bumper or the body is examined.
[0006]
[Problems to be solved by the invention]
Conventionally, the resin retainer 3 is inserted between the front bumper side 1 and the fender 2 as described above, but basically the front bumper is directly attached to the fender 2. For this reason, especially when the front bumper is deformed when the barrier enters, the input at that time may be transmitted to the fender and the fender itself may be deformed. In other words, in the conventional structure, the input to the body due to the barrier intrusion was considerably large.
[0007]
In view of the above, an object of the present invention is to provide a front bumper side coupling structure that effectively reduces input to the body.
[0008]
[Means for Solving the Problems]
Coupling structure of the front bumper side of the present invention includes a front bumper side fender is a coupling structure of the front bumper side bonded via a resin retainer, Chi lifting substantially the same width as the coupling portion of the front bumper side and fender There is a resin retainer inserted between the front bumper side and the fender , the front bumper side coupling portion and the fender side coupling portion are respectively coupled to the resin retainer, and the front bumper side coupling portion is There are a plurality of engaging means for detachably engaging the bumper side and the resin retainer, and the engaging means includes an engaging claw provided on one of the front bumper side or the resin retainer and the resin retainer or the front bumper side. A first engagement means comprising a first engagement hole provided on the other side, a front bumper side or a resin An engagement portion provided on the other side of the toner and a second engagement means comprising a second engagement hole provided on one of the resin retainer or the front bumper side, the first engagement means being a first inclined surface one via is configured to riding past the other, the second engaging means one via different second inclined surface of the inclined direction and the first inclined surface is configured to riding past the other Rukoto It is characterized by.
[0010]
In the front bumper side coupling structure according to the present invention, preferably, the front bumper side is configured to be separated from the resin retainer substantially along the input direction by an input at the time of barrier entry by the engaging means. Is done.
[0011]
The resin retainer has a grommet as an integral part, and this grommet has a fitting part that fits into a mounting hole drilled in the front bumper side, and this fitting part is inserted into the mounting hole and further tightened with a screw. Accordingly, it is desirable that the front bumper side is sandwiched between the resin retainer and the screw head.
[0012]
According to the present invention, the front bumper is attached to the large resin retainer without being directly attached to the fender. The resin retainer is further attached to the fender, and when the barrier enters, the front bumper is detached from the resin retainer by the input at that time. As a result, input to the body can be greatly reduced, and fender deformation and the like can be effectively prevented.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a front bumper side coupling structure according to the present invention will be described using the same reference numerals for members that are substantially the same as or correspond to those of a conventional example, based on the drawings.
FIG. 1 shows the front bumper side of the present invention. In this embodiment, the front bumper side 1 and the fender 2 are coupled, the resin retainer 10 is inserted between the front bumper side 1 and the fender 2, and these two members are coupled via the resin retainer 10. As shown in FIG. 3, the fenders 2 are arranged on both the left and right sides of the hood 5 that covers the engine room.
[0014]
In the present invention, the resin retainer 10 is a large resin retainer having substantially the same width as the coupling portion 1a of the front bumper side 1 and the coupling portion 2a of the fender 2. The connecting portion 1a on the front bumper side 1 side and the resin retainer 10 are indicated by arrows L, M, N, and the connecting portion 2a on the fender 2 side and the resin retainer 10 are indicated by arrows L ′, M ′, N ′. As you can see, they are combined.
[0015]
Moreover, the coupling | bond part 1a by the side of the front bumper side 1 has several engaging means which engages this front bumper side 1 and the resin retainer 10 so that engagement / disengagement is possible. The front bumper side 1 is separated from the resin retainer 10 substantially along the input direction by an input when the barrier enters the front bumper side 1.
[0016]
In the present invention, the first engaging means includes an engaging claw provided in the front bumper side 1 or the resin retainer 10 and a first engaging hole provided in the resin retainer 10 or the front bumper side 1. One of the joint holes is configured to be able to pass over the other.
[0017]
For example, as shown in FIG. 2, the resin retainer 10 has engaging claws 11 and 12 at locations indicated by arrows L and M. 4 and 5 show the engagement structure around the engagement claw 11 (substantially the same for the engagement claw 12). The engagement claw 11 is engaged with an engagement hole 13 formed in the front bumper side 1. In this case, the engagement claw 11 is normally disposed inside the engagement hole 13 as shown in FIG. Further, the engaging claw 11 has a first inclined surface 11 a formed at a corresponding portion (on the input W side) of the engaging hole 13. The inclination direction of the first inclined surface 11a is an acute angle with respect to the input W (preferably set to about 30 to 70 °, but not limited thereto).
[0018]
Moreover, it has the engaging part 14 formed in the front bumper side 1 as a 2nd engaging means like FIG. 4, and the 2nd engaging hole 15 formed in the resin retainer 10. As shown in FIG. The engaging portion 14 and the engaging hole 15 are engaged with each other via the second inclined surface as shown in the figure. The inclination direction of the second inclined surface is an acute angle with respect to the input W (preferably set to about 30 to 70 °, but not limited thereto).
[0019]
1, the resin retainer 10 is integrally provided with a grommet 16 as shown in FIGS. 2 and 6. The grommet 16 includes a fitting portion 19 that fits into a mounting hole 18 formed in the front bumper side 1. The front bumper side 1 is sandwiched between the resin retainer 10 and the head of the screw 17 by inserting the fitting portion 19 into the mounting hole 18 of the front bumper side 1 and fastening with the screw 17.
[0020]
In the above configuration, the front bumper side 1 is coupled to the resin retainer 10 at the positions of arrows L, M, and N at the coupling portion 1a. That is, the front bumper is not directly attached to the fender 2 but is attached to the large resin retainer 10. This resin retainer 10 is further attached to the fender 2, and when the barrier enters, the front bumper side 1 is detached from the resin retainer 10 by the input at that time.
[0021]
For example, as shown in FIGS. 4 and 5, when the input W acts upon entering the barrier, the engagement hole 13 of the front bumper side 1 contacts the engagement claw 11 and passes over the inclined surface 11 a. Further, the engaging portion 14 of the front bumper side 1 is disengaged from the engaging hole 15 of the resin retainer 10 as indicated by an arrow G in the H portion of FIG. Further, at the position of arrow N, the front bumper side 1 is attached to the resin retainer 10 and is not directly fastened to the fender 2.
[0022]
In this way, the front bumper side 1 is easily detached without attaching the front bumper directly to the fender 2. This prevents the front bumper that has received an external load from transmitting the impact at that time to the fender 2, and allows the impact force to escape (absorb) by sliding on the attachment portion of the front bumper side 1. Thereby, the input to the body can be greatly reduced, and deformation of the fender 2 can be effectively prevented.
[0023]
Although the present invention has been described based on the embodiment as described above, the present invention is not limited to this embodiment, and can be appropriately changed within the scope of the present invention.
For example, the arrangement position and quantity of the engagement claws 11 (engagement claws 12) are not limited to those in the illustrated example, and various engagements can be used as long as the same operational effects as those in the above embodiment can be obtained. Combined means can be employed. In addition, specific numerical examples and the like can be variously changed as necessary.
[0024]
【The invention's effect】
As described above, according to the present invention, in this type of front bumper side coupling structure, the front bumper side is not attached directly to the fender, and the front bumper side is easily detached, thereby reducing input to the body. It is possible to respond effectively and accurately to damage ability.
[Brief description of the drawings]
FIG. 1 is a view showing a periphery of a front bumper side in an embodiment of the present invention.
FIG. 2 is a view showing a resin retainer in an embodiment of the present invention.
FIG. 3 is a diagram showing a peripheral configuration of a front bumper in the embodiment of the present invention.
4 is a cross-sectional view taken along the line DD of FIG.
5 is a cross-sectional view taken along line EE of FIG.
6 is a cross-sectional view taken along line FF in FIG.
FIG. 7 is a view showing a conventional front bumper side coupling structure;
FIG. 8 is a diagram illustrating a coupling relationship between a front bumper and a fender in a conventional front bumper side coupling structure;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Front bumper side 2 Fender 5 Hood 10 Resin retainers 11 and 12 Engagement claw 13 Engagement hole 14 Engagement part 16 Grommet 17 Screw

Claims (3)

The front bumper side and the fender are joined together via a resin retainer.
The front bumper side and with the front bumper side Chi lifting substantially the same width as the coupling portion of the fender has a resin retainer that is interposed between the fender,
The front bumper side coupling portion and the fender side coupling portion are each coupled with the resin retainer,
The coupling portion on the front bumper side has a plurality of engagement means for detachably engaging the front bumper side and the resin retainer,
The engaging means includes
First engaging means comprising an engaging claw provided on one of the front bumper side or the resin retainer and a first engaging hole provided on the other of the resin retainer or the front bumper side;
A second engagement means comprising an engagement portion provided on the other of the front bumper side or the resin retainer and a second engagement hole provided on the one of the resin retainer or the front bumper side;
Including
The first engagement means is configured such that one can pass over the other through the first inclined surface,
The front bumper side coupling structure, wherein the second engaging means is configured such that one can pass over the other through a second inclined surface having a different inclination direction from the first inclined surface . 2. The front bumper side coupling structure according to claim 1 , wherein the front bumper side is separated from the resin retainer substantially along an input direction by an input at the time of entering a barrier by the engaging means. The resin retainer has a grommet integrally,
  This grommet includes a fitting portion that fits into a mounting hole drilled in the front bumper side,
  The front bumper side is sandwiched between the resin retainer and the head of the screw by inserting the fitting portion into the mounting hole and fastening with a screw. The front bumper side coupling structure according to 2.

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