JP3300255B2 - Rear spoiler mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a rear spoiler to a rear portion of a vehicle body of an automobile.

[0002]

2. Description of the Related Art In recent automobiles, a rear spoiler is mounted on a rear portion of a vehicle body, for example, on a rear end of a roof or an upper end of a back door, for the purpose of improving appearance or reducing air resistance and rear lift. There is something.

The above rear spoiler generally has a hollow airfoil cross-section formed by connecting the front and rear edges of a lower wall and an upper wall to each other.
It has a shape extending in the vehicle width direction. As a structure for mounting the rear spoiler to a vehicle body, a bolt is implanted in a mounting seat formed on the front side of the lower wall, the bolt is protruded toward the vehicle interior, and a nut is screwed on the protruding portion. Thus, a method of fixing the rear spoiler to the vehicle body by bolting is generally used.

In the above-mentioned conventional mounting structure, a portion of the rear spoiler behind the bolt tightening portion generally overhangs from the vehicle body. However, when the overhang dimension is increased, a vertical force acting on the portion is required. Therefore, there is a problem that the rear portion of the rear spoiler is apt to rattle up and down with the bolted portion as a fulcrum.

Here, as a method of reducing the above-mentioned rattling, a method of increasing the mounting rigidity by increasing the thickness of the rear spoiler, using a highly rigid material, injecting a filler into a hollow portion, or the like; For example, a method of inserting into the lower wall may be considered. A method is also conceivable in which a mounting bolt is inserted from the outside of the rear spoiler so that the upper wall and the lower wall are jointly fastened to the vehicle body in a state where the upper and lower walls are connected.

[0006]

However, in the case of the method of increasing the wall thickness, employing a highly rigid material, or injecting a filler into the hollow portion, the weight increases and the cost increases. In the case of the method of inserting a plate, a problem arises that a press die for manufacturing a plate is required, and the cost is increased. In addition, the method of inserting bolts from the outside of the rear spoiler requires a plug for blindfold, and has a problem that the appearance is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a mounting structure of a rear spoiler capable of reducing rattling of the rear spoiler without increasing weight and cost and without deteriorating the appearance. It is intended to be.

[0008]

SUMMARY OF THE INVENTION The present invention provides a structure in which a rear spoiler is attached to a rear portion of a vehicle body of an automobile so as to overhang rearward, and the rear spoiler is formed by connecting front and rear edges of a lower wall and an upper wall. A cross-section wing-shaped cylindrical body extending in the vehicle width direction, and a mounting seat having a shape along the outer shape of the vehicle body is formed at the front portion of the lower wall,
The mounting seat is connected to the vehicle body by a fastening member, and a concave portion is formed on the upper wall near the connecting portion of the lower wall, the concave portion being formed on the upper wall side. Are substantially in contact with each other to form a rib extending in the longitudinal direction of the vehicle body, and the upper surface of the concave portion is in contact with the inner surface of the upper wall.

[0009]

According to the rear spoiler mounting structure of the present invention, a concave portion is formed in the lower wall of the lower spoiler in the vicinity of the bolted joint portion, the concave portion being formed on the upper wall side and in contact with the inner surface of the upper wall. Since the concave portion is formed in a rib shape extending in the front-rear direction of the vehicle body by making the left and right side wall portions substantially contact each other, the concave portion prevents deformation of the upper wall when an external force in the vertical direction acts on the rear spoiler. It functions as a rib, which can improve the supporting rigidity, and has the effect of preventing rattling in the vertical direction with the bolt fastening portion of the rear spoiler as a fulcrum.

The recess of the present invention is provided inside the rear spoiler, so that it is not visible from the outside and can prevent the appearance from being deteriorated. Since there is no need to inject a material or to insert a mounting bolt into the lower wall with a retainer plate, the problem of weight increase and cost increase does not occur.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 6 are views for explaining a mounting structure of a rear spoiler according to an embodiment of the present invention. FIG. 1 is a perspective view showing a mounting state of the rear spoiler, and FIG. 2 is a plan view of a right portion of the rear spoiler. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG.
5 is a sectional view taken along the line VV of FIG. 2, and FIG. 6 is a sectional view taken along the line VI-VI of FIG.

In FIG. 1, reference numeral 1 denotes a body of a hatchback type automobile, and a rear end opening 1a of the body 1 can be opened and closed by a back door 2. The back door 2
Has a window opening 2c to which a window glass 4 is fixed, and a front edge of an upper frame portion 2d forming an upper edge of the window opening 2c is formed by joining the peripheral edges of an inner panel 2a and an outer panel 2b. The vehicle body 1 is supported on the rear edge of the roof so as to be vertically swingable.

A rear spoiler 3 is attached to the upper frame 2d of the back door 2, that is, the rear end of the vehicle body 1 so as to overhang rearward. The rear spoiler 3 is made of resin and is formed into a tubular body extending in the vehicle width direction by blow molding. The rear spoiler 3 extends in the vehicle width direction at a central portion of a rear edge of the rear spoiler 3 in the vehicle front-rear direction. A stop lamp (high mount lamp) 5 is incorporated.

The rear spoiler 3 is, in detail, a lower wall 3
a, the front edge 3c and the rear edge 3d of the upper wall 3b are integrally connected to each other in a wing-shaped cross section, and have a length substantially equal to the vehicle width. A mounting seat 3e is formed at the front of the lower wall 3a. The mounting seat 3e has a shape following the outer surface shape of the outer panel 2b, and extends over the entire length of the rear spoiler 3 in the vehicle width direction.

At the center of the mounting seat 3e in the vehicle width direction, at the left and right sides, and at the left and right ends, mounting bolts 6 are implanted so as to protrude into the vehicle interior. A nut 6a is mounted on the mounting bolt 6 from the inside of the vehicle, and is tightened by a tightening tool T inserted from the working hole 2e. Thus, the rear spoiler 3 is mounted on the outer surface of the outer panel 2b of the upper frame 2d of the back door 2.

The mounting seat 3e of the lower wall 3a is
The mounting seat 3 is provided on both the left and right sides of the center bolted portion and on the left and right sides of the left and right end bolted portions.
e is recessed toward the upper wall 3b. The concave portion 31 is composed of a peripheral wall 31a standing on the upper wall 3b side and a ceiling wall portion 31b serving as an upper end cover of the peripheral wall 31a, and an inner surface (upper surface) of the ceiling wall portion 31b is an inner surface (lower surface) of the upper wall 3b.
Is in contact with

In the present embodiment, the left and right wall portions of the peripheral wall 31a of the concave portion 31 in the vehicle width direction are substantially in contact with each other, and there is almost no space in the concave portion 31; Has a rib shape extending from the lower wall 3a to the upper wall 3b as a whole.

A housing 3f for the back lamp 5 is formed at the rear edge of the lower wall 3a so as to cut out the rear lower surface of the rear spoiler 3, and the center of the housing 3f and its left and right sides. Bolt stopper seats 3g are formed at three locations. A nut 7a is embedded in the bolt stop seat 3g. The back lamp 5 arranged in the accommodation portion 3f is attached to the rear spoiler 3 by fastening the mounting flange 5a of the back lamp 5 with the bolt 7 and the nut 7a. Reference numeral 8 denotes a lid that covers the bolt stop seat 3g.

In the rear spoiler 3 of the present embodiment, the recesses 31 are formed on both sides of the mounting bolt 6, so that when a vertical force is applied to the rear portion of the rear spoiler 3, the recesses 31 are formed on the upper wall 3b. Function as ribs for preventing the vertical deformation of the rear spoiler 3, and the supporting rigidity of the rear spoiler 3 can be improved accordingly. For example, as shown in FIG. 4, when the rear overhang is large, when the upward force F acts on the rear portion of the rear spoiler 3, depending on the magnitude of the force F, the front P portion of the upper wall 3b may be used. Although there is a concern that the vicinity may be deformed downward in the figure, in the present embodiment, the concave portion 31 functions as a rib for preventing deformation of the front portion P, and the deformation can be avoided. as a result,
Vertical play with the bolt fastening portion at the rear of the rear spoiler 3 as a fulcrum can be suppressed, and the degree of freedom in design can be increased, such as increasing the amount of protrusion from the back door 2.

The recess 31 is provided inside the rear spoiler 3 and is not seen from the outside, so that the appearance can be prevented from being deteriorated.

Further, the concave portion 31 of the present embodiment can be realized by a simple method in which a part of the lower wall 3a is dented toward the upper wall 3b side in blow molding, so that the above-described thickness can be increased or the hollow portion can be formed. There is no problem of weight increase and cost increase as in the method of injecting a filler into the space or inserting a mounting bolt with a retainer plate into the lower wall.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mounted state of a rear spoiler according to an embodiment of the present invention.

FIG. 2 is a right side plan view of the rear spoiler.

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 sectional view taken along line VI-VI of FIG. 2;

[Explanation of symbols]

 Reference Signs List 3 rear spoiler 3a lower wall 3b upper wall 3c, 3d front and rear edges 6, 6a bolt, nut (fastening member) 31 recess

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Toshiaki Kobayashi 8-1, Tocho, Fujii-cho, Anjo-shi, Aichi Pref. INOAC CORPORATION Sakurai Office (56) References JP-A-63-43875 (JP, A) Kaihei 2-281913 (JP, A) JP-A-5-40088 (JP, U) JP-A-6-55964 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B62D 37 / 02

Claims (1)

(57) [Claims] 1. A backward rear spoiler to the vehicle body rear portion of an automobile
In the structure that is mounted so as to overhang the
The rear spoiler is a tubular body having a wing-shaped cross section formed by connecting the front and rear edges of the lower wall and the upper wall to each other, and extends in the vehicle width direction. The front wall of the lower wall conforms to the outer shape of the vehicle body. Take
A seat is formed, the mounting seat is connected to the vehicle body by a fastening member, and a concave portion is formed on the upper wall side in the vicinity of the connecting portion of the mounting seat on the lower wall .
The left and right side wall portions in the vehicle width direction are substantially brought into contact with each other.
A rib extending in the front-rear direction of the vehicle body.
A top surface of the rear spoiler is in contact with an inner surface of the upper wall .