JPS6343875A - Spoiler for automobile - Google Patents

Abstract

PURPOSE:To improve the forming characteristic and mounting workability, by constituting a spoiler being divided into a hollow-shaped bottom part mounted to a car body side serving for a base, hollow-shaped upper part equipped with a wing part and a leg part connecting said wing part onto the bottom part. CONSTITUTION:This spoiler 1, suitable being mounted to a back door in a hatch-back type car, is constituted being divided into a bottom part 2, upper part 3 and plural leg parts 4 connecting said upper part 3 onto the bottom part 2. The bottom part 2 forms its section in an almost flat hollow shape, and its upper wall, providing a part for arranging the leg part 4, and forms plural locating parts 5 swollen toward the upper so as to be separated in a direction of car width. While the upper part 3 forms a hollow shape having a wing part 14 of streamlined section, and its bottom wall, providing a part for arranging the leg part 4, forms an accepting part 16, here the accepting part 16, which forms longitudinal two streaks of locating parts 17, chevron- shaped extending in the direction of car width, to be swollen in the top wall of said leg part-arranged part, enables a flange part 30, successively provided in line with the upper part of the leg part 4, to be accepted.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a spoiler for an automobile.

Conventional technology Spoilers are used to improve fuel efficiency and driving stability by using airflow during high-speed driving to prevent the car from being pressed against the road surface or lifting off the ground. For example, there is one shown on pages 5-23 of "TOYOTA 5UPRA New Model Car Manual" published in February 1986. This has a wing part and a plurality of legs, and is integrally molded in a hollow shape from synthetic resin.

Problems to be Solved by the Invention However, since the spoiler described above is of a hollow, integral wing type, there are the following problems.

(1) When a spoiler is made into a large or complex shape, it is difficult to form the spoiler and it is difficult to increase the rigidity of the entire spoiler.

(2) When attaching the spoiler to the bank door, which is a component of the vehicle body, with screws, seat the legs of the spoiler on the outer surface of the bank door, and then insert the nuts onto the tips of the screws that protrude from the side of the passenger compartment of the bank door. The installation work is troublesome because it has to be done across the outer surface of the bank door and the interior side of the vehicle, and it can only be installed from the side where the spoiler is placed.

(3) Even if it is hollow, if the spoiler becomes large, it will be heavy and difficult to handle during installation.

Therefore, the present invention divides each component into
An object of the present invention is to provide a spoiler for an automobile that can overcome the above problems.

Means for Solving the Problems In the present invention, a hollow lower part serving as a base attached to the vehicle body side, a hollow upper part having a wing part,
The upper wing part is divided into leg parts connected to the lower part.

Example Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

This embodiment will be explained by exemplifying a spoiler 1 which is attached to a back door B to which a window wiper device A of a hatchback type vehicle is assembled as shown in FIGS. 1 to 9.

This spoiler 1 is divided into a lower part 2, an upper part 3, and a plurality of legs 4 connecting the upper part 3 to the lower part 2. This lower part 2 is made of hollow synthetic resin and has a substantially flat cross section, and is attached to the vehicle body side, that is, the lower edge of the bank door B. A plurality of locating portions 5 that bulge upward are formed at a portion of the upper wall of the lower portion 2 where the leg portions 4 are disposed and spaced apart in the vehicle width direction. Support portions 6 that bulge upward are formed at both end portions of the upper wall of the lower portion 2 in the vehicle width direction. At the periphery of the lower wall of the lower part 2, there is a back door B as shown in Figures 3 to 7.
A rim portion 8 is formed to bulge downward in a closed annular shape and is placed on the outer surface of the rim portion with a seal rubber 7 interposed therebetween. A vertically elongated recess 9 or a plurality of recesses 10 connected to the back surface of the upper wall of the lower part 2 is formed in a portion of the lower wall of the lower part 2 corresponding to the locate part 5. The top surfaces of these recesses 9 and 10 are superimposed on the back surface of the upper wall of the lower part 2 (see FIGS. 3 and 4). Lower part 2
A window wiper escape recess 11 is formed at the front edge of the window wiper at a portion corresponding to the window glass cover. Drainage grooves 12 and 13 are formed in the portion of the lower part 2 that separates the rear part of the window wiper escape recess 11 and in the lower surfaces of both ends of the lower part 20, which penetrate in the front-rear direction. The upper part 3 is made of synthetic resin and has a hollow shape with wing parts 14 having a streamlined cross section. The wing part 14 of the upper part 3 forms a space 15 passing through the lower part 2 in the front-rear direction, and is horizontally suspended over the lower part 2. The rear part 14a of the upper wall of the wing part 14 is the stepped part 1.
．． The front half 14c is also bulged upward through 4b. A receiving portion 16 that bulges toward the upper blade is formed in a portion of the lower wall of the wing portion 14 where the leg portion 4 is disposed. The top wall of this receiving portion 16 has two front and rear sides extending in the vehicle width direction in a chevron shape.
The locate portion 17 of the strip is formed to bulge upward. The ridgeline part 17a of this locate part 17 is the wing part 1
4 are superimposed on the back surface of the upper wall 9, and nuts 18 forming attachment holes are insert-molded in each of the front inclined walls of the locating portion 17. A window wiper escape recess 19 is formed in a portion of the front edge of the wing portion 14 that corresponds to the window wiper device A. Wing part 14
At both ends thereof, side parts extending forward and bulging downward are connected. A receiving part 21 is formed at the inner corner of the wing part 14 and the side part where the wing part 14 and the side part are connected to each other. A rim member, which is placed on the outer surface of the bank door B with a seal rubber n interposed therebetween, is formed to bulge downward at the peripheral edge of this side lowering wall. The rim part n and the receiver of this side wall are part 21.
A retainer is provided on each lower surface of the portion between the two (see Fig. 7). This retainer part is press-fitted from above into a hook part 25a formed on the top of a synthetic resin grommet 5 attached to the side part of the back door B. Furthermore, a window glass connecting portion is provided on the inner side of the tip of the side portion. This window glass connecting section is fixed by a screw path to a pair of left and right platens (27) erected on the sides of the window glass G which is fitted into the opening of the back door B (No. 8). (see figure). The plurality of leg parts 4 are made of synthetic resin and have a streamlined bottomed hollow shape in plan view, and are provided in the receiving part 16 of the wing part 14 at the left and right side edges of the upper end opening 4. The flange sections that are stored and arranged are connected. A located portion 31 that is fitted into the two locating portions 17 formed on the receiving portion 16 is formed in the flange portion (9) to bulge upward. A screw insertion hole 32 is formed in a portion of the located portion 31 that corresponds to the hollow 18 of the located portion 17 . In addition, a large number of lips 33 extending vertically are provided on the hollow inner wall surface of the plurality of legs 4.
is provided.

The lower part 20 is provided on each of the bottom lower surfaces of the plurality of legs 4.
The located portion to be fitted onto the outside of the opening portion 5 is formed to bulge upward. On the other hand, the lower part 2 and the plurality of legs 4 are fastened together to the back door B by tapping screws and mounting screws. Tsumashi, 3rd
,4 As shown in Figure 4, there is a lower part 2 on the outer surface of the back door B.
The locating portions of the plurality of legs 4 are fitted onto each of the locating portions 5 of the lower part 2, and the screw insertion hole 37 of the bottom and the lower part 20 are inserted through the upper end opening of the plurality of legs 4.
By inserting a tapping screw hole into the screw insertion hole of the key part 5 and fastening this tapping screw hole to a grommet 39 attached to the outer surface of the back door B, the plurality of legs 4 are inserted into the upper wall of the lower part 2. It is erected on a predetermined portion, and the plurality of leg parts 4 and lower part 2 are fastened together to the bank door B. Further, as shown in FIG. 3, the mounting screws are connected from the upper end opening of the central leg 4 to the screw insertion hole 41 of the bottom part, the screw insertion hole 41 of the lower 20-piece part 5, and the top of the back door B. It passes through a cylindrical collar 42 and is fastened to a nut 43 provided on the back of the outer surface of the back door B, thereby fastening the leg portion 4 and the lower part 2 to the bank door B together. The wing portion 14 of the upper portion 3 is fixed to a plurality of leg portions 4 with screws 44, as shown in FIG. Specifically, the flanges (materials) of the plurality of legs 4 attached to the back door B together with the lower part 2 are taken into the receiving part 16 of the wing part 14,
By fitting the locating section 17 of the wing section 14 into the located section 31 of the plurality of legs 4, and fastening the screw 44 from the screw insertion hole 32 of the locating section 31 to the nut 18 of the locating section 17, the wing The portion 14 is a plurality of leg portions 4
is combined on top.

According to the structure of the above embodiment, as the car runs at high speed, fluid flows from the car body roof C to the rear of the car body via the bank door B as shown by the arrows Xi v X2 in FIGS.
As shown, it is divided into upper and lower parts at the wing part 14. Then, the fluid X1 on the wing part 14 passes through the front half part 14c, collides with the step part 14b, and flows to the second half part 14a, and the fluid X2 under the wing part 14 flows between the wing part 14, the lower part 2, and a plurality of The wing portion 1 is separated from the leg portion 4 and the wing portion 1.
4, the lower part 2, and the plurality of legs 4, the fluid X2 passes through the space 15 where there are projections or the like that would obstruct the flow of the fluid X2.

As a result, the flow velocity of the fluid Xi above the wing section 14 is slower than that of the fluid X2 below the wing section 14.
receives a downward force. And spoiler-1
The lower part 2 that is attached to the bank door B that constitutes the bank door B, the upper part 3 that includes the wing part 14, and the leg part 4 that connects this upper part 3 and the lower part 2 are each divided, so each component part can be molded separately. Not only can the spoiler be made large and have a complicated shape, but also various shapes can be combined if the compatibility of the parts to which each component is attached is considered. Further, in the portions where the leg portions 4 of the upper portion 3 and lower portion 2 are provided, the earthen wall and the lower wall are overlapped with each other, so that the rigidity of each portion is improved. Furthermore, the mounting portions of these components are located inside the leg portion 4 and at the receiving portion 16 of the wing portion 14.
The appearance is improved because there are no protrusions that would disturb the flow of fluid. In addition, the seal rubber 7 prevents rainwater and car wash water flowing down from the rear door B to the front edge of the lower part 2 from seeping into the overlapping surface between the lower part 2 and the back door B. Drainage groove 12
, 13) flows down to the rear part of spoiler 1 of door B and is drained outside the vehicle.

Effects of the Invention As described above, according to the present invention, the lower part attached to the vehicle body side, the upper part including the wing part, and the leg part connecting this upper part to the lower part are divided, so that each component can be molded separately. This not only improves moldability, but also allows for larger spoilers and more complex shapes, giving greater freedom in design selection, and is advantageous in terms of rigidity. In addition, since the lower part, legs, and upper part can be assembled only from the outside of the vehicle body, installation work efficiency can be improved, and in accordance with the division of each component part, the large size of each component part can be assembled. Since the lower part and the upper part are formed in a hollow shape to reduce weight, there are novel effects such as improved handling of each component part at the time of installation.

[Brief explanation of the drawing]

FIG. 1 is an exploded overall perspective view of an embodiment of the present invention;
Fig. 2 is a rear perspective view of a car with the spoiler of the same embodiment installed, Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2, and Fig. 4 is a cross-sectional view taken along the line IV-IV in Fig. 2. 5 is a sectional view taken along line v-v in FIG. 2, and FIG. 6 is a sectional view taken along line V[-VI in FIG.
Figure 7 is a cross-sectional view taken along the line ■-■ in Figure 2, Figure 8 is a cross-sectional view taken along the line ■-■ in Figure 2, and Figure 9 is a cross-sectional view taken along the line ■-■ in Figure 2. It is a partial perspective view which shows the combined part in cross section. 1... Spoiler-12... Lower part, 3... Upper part, 4
... Leg part, 14-... Wing part. 2 people Figure 3 Figure 4

Claims (1)

[Claims] A vehicle for use in an automobile, characterized in that it is divided into a hollow lower part that serves as a base that is attached to the vehicle body, a hollow upper part that includes a wing part, and leg parts that connect the wing part of this upper part to the lower part. Spoiler.