JPH05170144A - Rear spoiler fitting structure for automobile - Google Patents

Abstract

PURPOSE:To prevent a rear spoiler from being scattered from a vehicle body by the shock force at the time of a rear collision. CONSTITUTION:A rear spoiler 3 is fitted to the outside plate 1 of a vehicle body via a fitting member 5 deformable at the time of a collision, and a rear spoiler side connection section 6 connecting the rear spoiler 3 and the fitting member 5 and a vehicle body side connection section 7 connecting the outside plate 1 and the fitting member 5 are provided apart in the longitudinal direction of a vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear spoiler mounting structure for an automobile, which prevents the rear spoiler from scattering due to impact force.

[0002]

2. Description of the Related Art A rear spoiler provided in an automobile is attached to a rear portion of a vehicle body, particularly an outer plate such as a trunk lid and a back door outer panel. When the rear spoiler is attached to a required part of the vehicle body as described above, the rear spoiler is often manufactured by various molding steps of synthetic resin material. For example, Japanese Utility Model Laid-Open No. 62-67880 and Japanese Utility Model Publication No. As disclosed in Japanese Patent Application Laid-Open No. 136788, a fastening member such as a nut or a bolt is previously inserted at the time of molding the rear spoiler, and the rear spoiler is directly attached to the outer plate of the vehicle body by these inserted fastening members. A rear spoiler mounting structure is known.

[0003]

However, in the mounting structure in which the rear spoiler is directly mounted to the outer plate of the vehicle body by the fastening member as described above, particularly when the rear spoiler is formed by the blow molding method or the injection molding method. When an impact force such as a rear impact is received, the rear spoiler may be scattered near the attachment portion of the rear spoiler to the outer plate of the vehicle body.

That is, as shown in FIG. 17A, a fastening member 2 is attached to an outer plate 1 such as a trunk lid.
When a rear impact P occurs in a vehicle to which the rear spoiler 3 is attached by using, when the rear impact P applies an impact force only to the rear spoiler 3, the rear spoiler 3 moves toward the front side of the vehicle. When the rear impact P impacts the outer plate 1, the outer plate 1 is deformed by the impact force when the rear collision P impacts the outer plate 1, and similarly the rear spoiler 3 is separated from the vehicle body 1. It is affected by the impact force.

In such a situation, as shown in FIG. 17B, since the fastening member 2 inserted in the rear spoiler 3 is directly fastened to the outer plate 1, the stress caused by the impact force is the above. It is easy to concentrate in the vicinity of the fastening member 2 and the stress concentration portion 4 is generated.

When the concentrated stress in the stress concentrating portion 4 exceeds the strength of the rear spoiler 3 in this portion, the rear spoiler 3 cannot avoid being damaged in the stress concentrating portion 4.

Therefore, the rear impact P in the above-mentioned situation
17C, the spoiler 3 scatters from the outer plate 1 of the vehicle body as shown in FIG. 17C.

In view of the above, it is an object of the present invention to prevent the rear spoiler from scattering from the outer plate of the vehicle body when it receives an impact force.

[0009]

In order to achieve the above-mentioned object, the invention of claim 1 mounts the rear spoiler through a mounting member which is deformed at the time of collision with the vehicle body and absorbs the impact force. ..

Specifically, in the solution means taken by the invention of claim 1, the rear spoiler is attached to the vehicle body through a mounting member that is deformable at the time of a collision, and the rear spoiler side connecting the rear spoiler and the mounting member. The joining portion and the vehicle body-side joining portion that joins the vehicle body and the mounting member are provided separately from each other in the vehicle front-rear direction.

According to the second aspect of the present invention, when the rear spoiler is subjected to an impact force from the rear, the mounting member is deformed so that the rear spoiler-side coupling portion moves forward. In addition to the configuration of claim 1, a configuration in which the vehicle body side coupling portion is provided on the front side of the rear spoiler side coupling portion is added.

[0012]

According to the structure of the first aspect of the present invention, the mounting member which is interposed between the rear spoiler and the vehicle body and which connects the rear spoiler and the vehicle body is deformable at the time of a collision, and the rear spoiler side coupling portion and the vehicle body side coupling portion are Since it is separated in the vehicle front-rear direction, the mounting structure for the vehicle body and the rear spoiler has a high degree of freedom, and the impact force at the time of a rear collision is absorbed by the deformation of the mounting member, so the rear spoiler is connected to the vehicle body. The relative position with respect to the vehicle body changes while it is held.

According to the structure of the second aspect of the present invention, since the vehicle body side connecting portion is provided on the front side of the rear spoiler side connecting portion, the mounting member is provided when the rear spoiler receives an impact force from the rear. The rear spoiler-side coupling part deforms so as to move forward to absorb the impact force.

[0014]

Embodiments of the present invention will now be described with reference to the drawings.

As described above, the rear spoiler attached to the outer plate of the vehicle body is scattered by the impact force at the time of a rear impact because the impact force at the time of the rear impact is a fastening member provided between the rear spoiler and the outer plate. In view of the fact that there is a cause of causing concentrated stress in the vicinity thereof and in the vicinity thereof, in the present invention,
As shown in FIG. 1, when attaching the rear spoiler 3 to the outer panel 1 of the vehicle body such as the trunk lid and the back door outer panel, a mounting member 5 is provided between the outer panel 1 and the rear spoiler 3.
Decided to intervene under certain requirements. That is, the mounting member 5 is made of a material that can be deformed by an impact force, preferably made of metal. The mounting member 5 and the rear spoiler 3 are connected by the rear spoiler side connecting portion 6, and the mounting member 5 and the vehicle body 1 are also connected. And are connected by a vehicle body side connecting portion 7.

The rear spoiler-side connecting portion 6 and the vehicle body-side connecting portion 7 are provided apart from each other in the vehicle front-rear direction.
In the mounting structure shown in FIG. 1, the vehicle body side joint portion 7 is provided on the front side of the rear spoiler side joint portion 6.

Since the structure for mounting the rear spoiler 3 on the vehicle body 1 of the present invention is constructed as described above, when an impact force is applied to the rear spoiler 3 by the rear impact P, the impact force is the above-mentioned. It is transmitted to the mounting member 5, and the mounting member 5
As shown in FIG. 2, the impact force is absorbed by being deformed by the impact force between the rear spoiler side joint portion 6 and the vehicle body side joint portion 7. The rear spoiler 3 can change its relative position with respect to the vehicle body 1 while being connected to the vehicle body 1 by the deformation of the mounting member 5 that absorbs this impact force, and as a result, the rear spoiler 3 does not scatter.

Next, as an embodiment of the present invention, a rear spoiler 3 as shown in the plan view of FIG. 3 and the rear view of FIG.
However, the mounting structure when mounted on the vehicle body will be described in detail.

The rear spoiler 3 in this embodiment is
It is composed of a wing portion 8 extending in the vehicle width direction, an intermediate strut portion 9 provided at an intermediate portion of the lower surface of the wing portion 8 and end strut portions 10 provided at both end sides in the vehicle width direction, respectively. The middle strut portion 9 and the end strut portions 10 and 10 are attached to the outer plate 1 of the vehicle body such as the trunk lid or the back door outer panel.

Rear spoiler 3 as shown in FIG.
The mounting structure of the outer plate 1 and the outer plate 1 is applied to the mounting of the rear spoiler 3 shown in FIGS. As shown in FIG. 5, which is a cross-sectional view taken along the line AA of the intermediate strut portion 9 of FIG. 3, the rear spoiler 3 includes the outer panel 1 of the vehicle body via the mounting member 5 which is deformable by the impact force as described above. The rear spoiler 3 and the mounting member 5 are coupled at the rear spoiler-side coupling portion 6, and the outer plate 1 and the mounting member 5 are coupled at the vehicle body-side coupling portion 7.

Rear spoiler side connecting portion 6 and vehicle body side connecting portion 7
Are separated from each other in the vehicle front-rear direction, and the embodiment shown in FIG. 5 is an example in which the vehicle body side coupling portion 7 is located on the front side.

In the rear spoiler-side connecting portion 6, a bolt 6b for inserting the mounting member 5 is screwed into an insert nut 6a which is provided in advance when the rear spoiler 3 is formed by blow molding or the like. The rear spoiler 3 and the mounting member 5 are joined together.

In the vehicle-body-side connecting portion 7, the mounting member 5 and the outer plate 1
The attachment member 5 and the outer plate 1 are joined together by a weld bolt or the like that inserts the two together and joins them together.

Further, in this embodiment, the rear spoiler 3
In order to contribute to the operational benefits of mounting the vehicle to the outer plate 1 and to improve the mounting stability of the rear spoiler 3 when the vehicle is operating in a steady state, the vehicle body side fastening portion 11 and the rear spoiler side fastening portion 12 are provided.

In this embodiment, there are two rear spoiler-side connecting portions 6 for connecting the rear spoiler 3 and the mounting member 5, and the mounting member 5 is bent at an intermediate portion between the two rear spoiler-side connecting portions 6 and 6. A portion that comes into contact with the outer plate 1 is formed, and the mounting member 5 and the outer plate 1 are formed in this portion.
The vehicle body side fastening portion 11 is formed by a clip or the like that is inserted and fastened together.

A rear spoiler-side fastening portion 12 is formed by fastening the mounting member 5 to the rear spoiler 3 at the front end portion of the mounting member 5 in the vehicle front-rear direction.

Mounting member 5 in the embodiment shown in FIG.
As shown in the bottom view of FIG. 6, the shape of the rear spoiler is such that the bolts 6b are accommodated in the recesses 9a formed in the lower end surfaces of the intermediate support 9 of the rear spoiler. A hole 6c to be inserted and a hole 7a to which a weld bolt or the like is inserted are formed in the vehicle body side joint portion 7, respectively.

Further, at the front end of the mounting member 5 in the vehicle front-rear direction, a fastening notch 12a is formed which can be fastened depending on the form of the rear spoiler-side fastening portion 12, and at two locations. In the middle portion of the formed holes 6c and 6c,
A fastening hole 11a having an introduction portion with which the vehicle body side fastening portion 11 is engaged is formed.

After the rear spoiler 3 is mounted on the outer plate 1 via the mounting member 5, the rear spoiler-side fastening portion 12 is deformed by the mounting member 5 as described above due to the impact force due to the rear collision. 3 must have a function of easily moving forward when changing the position toward the front in the vehicle front-rear direction. Therefore, FIG.
In the rear spoiler-side fastening portion 12 in the embodiment shown in FIG.
The rear spoiler 3 is allowed to move forward by tightening the periphery of the fastening notch 12a with low torque using a screw having a smaller size than b.

7 to 10 show modified examples of the rear spoiler-side fastening portion 12 having the function of allowing the forward movement of the rear spoiler 3 as described above. In the rear spoiler-side fastening portion 12 illustrated in FIG. 7, the front end portion of the mounting member 5 in the vehicle front-rear direction is in contact with the bottom surface of the recessed portion 9a formed in the lower end surface portions of the intermediate column portion 9 of the rear spoiler, As a result, the rear spoiler 3 is supported by the front end portion of the mounting member 5, and the rear spoiler-side fastening portion 12 illustrated in FIG. 8 is provided at the front end portion of the rear spoiler 3 in the vehicle front-rear direction. The slit 12c is formed in advance when the rear spoiler 3 is blow-molded and the like.
The front end portion of the mounting member 5 is inserted into the above.

In the rear spoiler side fastening portion 12 illustrated in FIG. 9, a stepped bolt 12d is attached to the rear spoiler 3, and the fastening notch 12a of the attaching member 5 is engaged with the stepped bolt 12d. This allows the rear spoiler 3 to move forward.

In the rear spoiler-side fastening portion 12 shown in FIG. 10, a slit 12e is separately formed from a metal material or the like at the front end portion of the rear spoiler 3 in the vehicle front-rear direction.
The front end portion of the mounting member 5 is fitted into the slit 12e.

One embodiment of the automobile rear spoiler mounting structure of the present invention has the structure as described above, and the rear collision in the vehicle having the rear spoiler 3 mounted on the outer plate 1 of the vehicle body by such structure. When an impact force due to a rear impact is applied only to the rear spoiler 3, the rear spoiler 3 is attached to the front lid 1 of the vehicle body such as the trunk lid and the back door outer panel to which the rear spoiler 3 is attached by the impact force. Then, the vehicle moves so as to change its position toward the front side in the vehicle front-rear direction.

At this time, for example, the clip in the vehicle body side fastening portion 11 that fastens the mounting member 5 and the outer plate 1 is cut by the applied shearing force, and the lower half portion thereof falls below the outer plate 1. By doing so, the vehicle body side fastening portion 11 is released. At the same time, the rear spoiler-side fastening portion 12 that fastens the mounting member 5 and the rear spoiler 3 allows the rear spoiler 3 to move forward in the vehicle front-rear direction.

Therefore, the impact force applied to the rear spoiler 3 is transmitted to an intermediate area between the rear spoiler-side connecting portion 6 and the vehicle body-side connecting portion 7 of the mounting member 5, and the corresponding portion of the mounting member 5 is The rear spoiler 3 is deformed by the impact force, the impact force applied to the rear spoiler 3 by the deformation is absorbed, and the rear spoiler 3 is not constrained by the outer plate 1, so that the position can be changed.

When an impact force due to a rear collision is applied to the vehicle body, the outer plate 1 is deformed by the impact. Also at this time, the vehicle body side fastening portion 11 that fastens the mounting member 5 and the outer plate 1 by the deformation of the outer plate 1 is released, and at the same time, the rear spoiler side coupling portion 6 and the vehicle body side coupling portion of the mounting member 5 are released. Due to the deformation of the mounting member 5 in the area intermediate between 7 and 7,
Most of the impact force applied to the vehicle body is absorbed and the impact force transmitted to the rear spoiler 3 is extremely small, and the rear spoiler 3 is not constrained by the outer plate 1, so that its position is changed. It becomes possible.

As described above, the impact force due to the rear collision is absorbed by the deformation of the mounting member 5 connecting the rear spoiler 3 and the outer plate 1 in the intermediate strut portion 9 of the rear spoiler 3, and the position of the rear spoiler 3 changes. At that time, the end support columns 10 at the respective ends of the rear spoiler 3 in the vehicle width direction.
Since the attachment of the rear spoiler 3 and the outer plate 1 at 10 and 10 is made to have a strength to withstand a comparatively light load as described later, the rear spoiler 3 is easily separated from the outer plate 1 at the end support portion 10, and therefore, as described above. Rear spoiler 3 is outer plate 1
It is easy to change the relative position with respect to the rear spoiler 3, and the rear spoiler 3 is prevented from scattering by absorbing the impact force and maintaining the connected state by the deformed mounting member 5.

In the embodiment as described above, the rear spoiler 3
While it is mainly applied to the mounting structure of the rear spoiler 3 to the outer plate 1 of the intermediate strut portion 9, the following embodiment is preferable when mounting the rear spoiler 3 to the outer plate 1 at the end strut portion 10 of the rear spoiler 3. It is applied.

That is, the connecting means between the rear spoiler 3 and the outer plate 1 in the end column 10 is provided at three points, that is, the Bo point, the Co point and the Do point as shown in FIG.

The Bo point connecting portion 13 at the Bo point is
As shown in FIG. 11 which is a cross-sectional view taken along the line BB of FIG. 3, a locking piece 13a, which is preferably made of metal and is provided in advance on the rear spoiler 3, and a head is locked to the locking piece 13a. Clip 13b whose leg is inserted and which extends through the outer plate 1
It consists of and. The Bo point connecting portion 13 also has a function of temporarily fixing when the rear spoiler 3 is attached to the outer plate 1, and can have the same form as the vehicle body side fastening portion 11 in the above-described embodiment. ..

The Co point connecting portion 1 at the above Co point
As shown in FIG. 12, which is shown as a cross-sectional view taken along line CC in FIG. 3, reference numeral 4 denotes an insert locking piece 14a provided by being pre-inserted when the rear spoiler 3 is molded by blow molding or the like, A locking bolt 14b whose head is locked to the locking piece 14a and a shaft portion of which can be inserted through the outer plate 1, and an outer plate 1
And a cap nut 14c for tightening the locking bolt 14b on the back surface of the.

Further, the Do point connecting portion 1 at the above Do point
5 shows the insert locking piece 15a and the locking bolt 1 as shown in FIG.
5b and cap nut 15c, insert locking piece 15a, locking bolt 15b and cap nut 15c.
Each has the same form and the same function as the insert locking piece 14a, the locking bolt 14b, and the cap nut 14c in the Co point connecting portion 14, respectively.

The insert locking pieces 14a (15a) used for the Co point connecting portion 14 and the Do point connecting portion 15 are shown in FIG.
4 and FIG. 15, it has a space S formed by an upper wall and a lower wall, and a notch lead portion L provided in the lower wall, and is preferably a resin molded product. As described above, the rear spoiler 3 is integrally inserted into the rear spoiler 3 when the rear spoiler 3 is molded.

As shown in FIG. 16, the locking bolt 14b (15b) that engages with the insert locking piece 14a (15a) has a stepped portion W having a circular shape in the cross section along the axis, but a head portion H. Has a rectangular shape (quadrangle in this embodiment), and the head H of the locking bolt 14b (15b) is inserted into the space S of the insert locking piece 14a (15a) to insert the locking piece 14a (15a). And locking bolt 14b
(15b) is engaged, and then the cap nut 14c (15
It functions as a detent when tightened by c).

In this way, in the embodiment preferably applied to the end portion of the rear spoiler 3 in the vehicle width direction, as described above, the Bo point connection portion 13 has a shearing force when an impact force is applied to the rear spoiler 3. The clip 13a which is easy to cut by is used, and the Co point connecting portion 14 and D are used.
Since the o-point connecting portion 15 uses a resin insert locking piece 14a (15a) that is more easily broken than metal when an impact force is applied to the rear spoiler 3, the end support portion 10 of the rear spoiler 3 is used. 1 of the rear spoiler 3 in
The attachment strength to the can be set to such an extent that it can withstand a relatively light load.

[0046]

As described above, according to the vehicle rear spoiler mounting structure of the first aspect of the invention, the mounting member interposed between the rear spoiler and the vehicle body and connecting the rear spoiler and the vehicle body is deformable in the event of a collision. Since the rear spoiler-side coupling portion and the vehicle body-side coupling portion are separated from each other in the vehicle front-rear direction, the degree of freedom of mounting in the mounting structure of the vehicle body and the rear spoiler becomes high, and the impact force at the time of a rear impact is the deformation of the above-mentioned mounting member Therefore, the rear spoiler can be prevented from scattering due to impact force with a simple structure.

According to the second aspect of the present invention, since the vehicle body side connecting portion is provided on the front side of the rear spoiler side connecting portion, when the rear spoiler receives an impact force from the rear side, the mounting member is on the rear spoiler side. Since the connecting portion moves forward, the rear spoiler is more reliably prevented from scattering.

[Brief description of drawings]

FIG. 1 is a cross-sectional view for explaining the configuration of the present invention.

FIG. 2 is a cross-sectional view showing a state when a rear collision occurs in the rear spoiler in the present invention.

FIG. 3 is a plan view illustrating a rear spoiler to which the present invention is applied.

FIG. 4 is a rear view of the rear spoiler illustrated in FIG.

5 is a sectional view showing an embodiment of the present invention, which is taken along line A- of FIG.
It is a figure equivalent to the A view.

FIG. 6 is a bottom view of the above embodiment.

FIG. 7 is a cross-sectional view of essential parts showing a modified example of the rear spoiler-side fastening portion in the above embodiment.

FIG. 8 is a cross-sectional view of essential parts showing a modified example of the rear spoiler-side fastening portion in the above embodiment.

FIG. 9 is a cross-sectional view of essential parts showing a modified example of the rear spoiler-side fastening portion in the above embodiment.

FIG. 10 is a cross-sectional view of essential parts showing a modified example of the rear spoiler-side fastening portion in the above embodiment.

11 is a cross-sectional view showing another embodiment of the present invention and is a view corresponding to a cross section taken along line BB of FIG. 3. FIG.

FIG. 12 is a cross-sectional view showing another embodiment described above, which is taken along line C- of FIG.
It is a figure corresponding to a C cross section.

FIG. 13 is a cross-sectional view showing another embodiment described above, which is taken along line D- of FIG.
It is a figure corresponding to a D-view cross section.

FIG. 14 is a bottom view of an insert locking piece used in the other embodiment.

FIG. 15 is a side view of an insert locking piece used in the other embodiment.

FIG. 16 is a side view of a locking bolt used in the other embodiment.

17A and 17B are views showing a conventional example, in which FIG. 17A is a sectional view showing a state in which a rear collision occurs with respect to a rear spoiler, FIG. 17B is a sectional view showing a state in which stress due to a rear collision is concentrated, and FIG. FIG. 6 is a cross-sectional view showing a state in which a rear spoiler is scattered by a rear impact.

[Explanation of symbols]

 1 outer plate 2 fastening member 3 rear spoiler 4 stress concentration part 5 mounting member 6 rear spoiler side coupling part 7 vehicle body side coupling part 8 wing part 9 intermediate support part 10 end support part 11 vehicle body side fastening part 12 rear spoiler side fastening part 13 Bo point connecting part 14 Co point connecting part 15 Do point connecting part

Claims (2)

[Claims] 1. A rear spoiler is attached to a vehicle body through a mounting member that can be deformed at the time of a collision, and a rear spoiler-side coupling portion that couples the rear spoiler and the mounting member, and the vehicle body and the mounting member. A rear spoiler mounting structure for an automobile, characterized in that it is provided apart from the vehicle body side coupling portion in the vehicle front-rear direction. 2. The vehicle rear spoiler mounting structure according to claim 1, wherein the vehicle body side joint portion is provided on a front side of the rear spoiler side joint portion.