JP7037423B2 - Front spoiler - Google Patents

Description

The present invention relates to a front spoiler mounted on the lower part of the front bumper of a vehicle.

It is known that the front spoiler is attached to the lower part of the vehicle body, particularly the front and the rear, for the purpose of reducing the aerodynamic resistance and lift of the automobile and improving the steering and running stability.

Japanese Unexamined Patent Publication No. 2018-016308

Due to the nature of the front spoiler being attached to the bottom of the car body, it is often damaged by hitting or riding on obstacles such as curbs and bollards in parking lots. The higher the hardness of the resin, the easier it is to break, and the higher the repair cost. Therefore, conventionally, even if such an obstacle is encountered, it is molded by using a resin having a relatively low hardness so that it can be prevented from being damaged by being deformed to some extent (Patent Document 1).

However, the front spoiler using a resin having a low hardness has a problem that it is deformed and fluttered by wind pressure when the vehicle is running, and the aerodynamic performance is deteriorated due to the deformation. Therefore, the present inventor has developed a front spoiler having high strength and aerodynamic performance by improving the shape itself without using the reinforcing member as described in Patent Document 1.

The present invention has been made in view of the above points, and an object of the present invention is to provide a front spoiler that does not flutter due to wind pressure when the vehicle is running and that does not deteriorate aerodynamic performance or steering / running stability. ..

In order to achieve the above object, the present invention is a front spoiler mounted on the lower part of the front bumper of a vehicle, and is a front member including a curved panel elongated in the width direction of the vehicle when mounted on the vehicle. A pair of left and right members extending from the left and right ends of the front member toward the rear of the vehicle, and a bottom member that enters from the lower ends of the front member and the lower ends of the pair of left and right members toward the vehicle center side and faces the ground. The curved panel has a concave curved surface whose lower end protrudes forward from the upper end in the vertical direction, and has a shape in which the center protrudes forward from the left and right ends in the left-right direction. A first groove extending in the width direction of the vehicle is formed between the bottom member, and a second groove extending in the vertical direction is formed between the front member and the pair of left and right members. It offers a front spoiler that is characterized by being.

Further, it is preferable that the front spoiler according to claim 1, wherein the first groove and the second groove are continuously formed as one groove.

Further, it is preferable that the front member includes a frame on the upper side of the curved panel, and a third groove extending in the width direction of the vehicle is formed between the curved panel and the frame.

The front spoiler according to claim 2, wherein the first groove, the second groove, and the third groove are formed as one continuous groove is preferable.

Further, it is preferable that the front member, the pair of left and right members, and the bottom member are integrally molded by injection molding using a mold.

According to the present invention, since the first groove and the second groove are formed in the front spoiler, the strength of the front spoiler is increased even if a reinforcing member is not used. Therefore, the twist and distortion generated in the front spoiler due to the wind pressure received while the vehicle is running are reduced, and it is possible to exhibit aerodynamic performance and the like.

The perspective view which shows the front spoiler which concerns on embodiment of this invention. A perspective view of the front of the front spoiler viewed from diagonally above. Bottom view of the front spoiler as seen from below. Left side view of the front spoiler. VV cross section of the front spoiler. The left side view which shows the front spoiler which concerns on the 1st modification. The left side view which shows the front spoiler which concerns on the 2nd modification.

<1. Configuration>
The front spoiler 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 5. The front spoiler 1 of the present invention is a member mounted on the lower part of a front bumper (not shown) of an automobile. For convenience of explanation, in each drawing, the front-rear direction D1, the left-right direction D2, and the up-down direction D3 are defined with respect to the front spoiler 1.

As shown in FIG. 1, the front spoiler 1 includes a front member 3, a pair of left and right side surface members 5 (5L, 5R), and a bottom surface member 7 (see FIG. 3). Here, it is assumed that the front spoiler 1 is integrally formed by injection molding using a mold. That is, each member of the front member 3, the pair of side surface members 5L, 5R, and the bottom member 7 (see FIG. 3) is not an independent member, but constitutes a part of the front spoiler 1.

Hereinafter, the front member 3, the pair of side member 5L, 5R, and the bottom member 7 constituting the front spoiler 1 will be described in detail.

The front member 3 is a member that is long in the width direction of the vehicle so as to face the traveling direction of the vehicle when the front spoiler 1 is mounted on the vehicle.

Specifically, the front member 3 includes a curved panel 31, an upper frame 33, and a groove portion 4U. The upper frame 33 is a member arranged on the upper side of the curved surface panel 31 across the groove portion 4U, and the length in the vertical direction D3 is shorter than that of the curved surface panel 31. As shown in FIGS. 4 and 5, the groove portion 4U is formed between the curved surface panel 31 and the upper frame 33 so as to be concave rearward (on the vehicle side) with respect to the curved surface panel 31 and the upper frame 33. There is.

As shown in FIG. 1, the curved panel 31, the upper frame 33, and the groove portion 4U constituting the front member 3 all extend to the right and left ends in the width direction of the vehicle.

As shown in FIGS. 4 and 5, the curved panel 31 has a concave curved surface whose lower end protrudes forward from the upper end in the vertical direction D3. Further, as shown in FIG. 2, the curved panel 31 has a bow shape whose center protrudes forward from the left and right ends in the left-right direction.

The curved panel 31 is also referred to as an art panel, and is an area for a vehicle user to design or use as a signboard for advertising. By arranging the curved panel 31 at the lower part of the front surface of the vehicle, an area for arranging (decorating) the original design is secured in a relatively conspicuous place.

The pair of side surface members 5L and 5R are portions extending from the left and right end sides of the front member 3 toward the rear of the vehicle while gently bending at a substantially right angle. As shown in FIGS. 1 and 2, the right side surface member 5R extends rearward from the right end of the front member 3, and the left side surface member 5L extends rearward from the left end of the front surface member 3. The upper ends of the side surface members 5L and 5R are continuously formed with the upper frame 33 of the front surface member 3, and the boundary between the front surface member 3 and the side surface members 5L and 5R draws a gentle curve. Further, the lower ends of the side surface members 5L and 5R may be located below the upper end in a substantially vertical direction, or may extend slightly outward, depending on the design of the vehicle.

As shown in FIG. 2, a groove portion 6L is formed between the curved surface panel 31 and the side surface member 5L, and a groove portion 6R is formed between the curved surface panel 31 and the side surface member 5R. Each of the groove portions 6L and 6R is formed so as to be concave inward (on the vehicle side) with respect to the curved surface panel 31 and the pair of side surface members 5L and 5R. Further, the groove portions 6L and 6R are continuously formed with the above-mentioned groove portion 4U. That is, the groove portion 4U and the groove portions 6L and 6R form one continuous groove portion.

As shown in FIG. 3, the bottom surface member 7 is a member that enters from the lower end of the front surface member 3 and the lower ends of the pair of side surface members 5L and 5R toward the vehicle center side and faces the ground. The bottom member 7 has a U-shape when viewed from below.

Further, as shown in FIGS. 3 and 5, a groove portion 4L is formed between the bottom surface member 7 and the curved surface panel 31. The groove portion 4L extends in the left-right direction along the curved surface panel 31, and is connected to the groove portions 6L and 6R described above. That is, the groove portion 4L and the groove portions 6L and 6R form one continuous groove portion. Further, since the groove portion 4U and the groove portions 6L and 6R are continuous as described above, the groove portion 4U, the groove portions 6L and 6R and the groove portion 4L form a continuous groove portion so as to surround the curved surface panel 31.

The groove portion 4U, the groove portion 6L, 6R and the groove portion 4L function as ribs for preventing the front member 3 from being deformed by the high wind pressure received when the vehicle is running (see FIG. 4). The shape of each groove may be U-shaped, U-shaped, or V-shaped. The depth is not particularly limited as long as it increases the strength of the front member 3.

As shown in FIG. 2, the front member 3 (curved surface panel 31, groove portion 4U, and upper frame 33) is formed in a bow shape so as to draw an arc that is convex forward in the left-right direction. The upper frame 33 and the groove portion 4U provided below the upper frame 33 have substantially the same radius of curvature.

On the other hand, the radius of curvature of the curved panel 31 is smaller than the radius of curvature of the upper frame 33 and the groove portion 4U, and is configured to have a large bend.

First, with reference to FIG. 4, the degree of bending in the width direction on the upper end side of the curved surface panel 31 will be described. In FIG. 4, the center of the curved panel 31 is indicated by reference numeral 31C, and the left end of the curved surface panel 31 is indicated by reference numeral 31L. As shown in FIG. 4, the upper end of the center 31C of the curved panel 31 is substantially at the same position as the upper frame 33, whereas the upper end of the left end 31L of the curved panel 31 is larger and rearward than the upper frame 33. It is dented (on the vehicle side). Although illustration and description are omitted, the same applies to the right end on the opposite side. Therefore, the radius of curvature on the upper end side of the curved panel 31 is smaller than the radius of curvature of the upper frame 33 and the groove portion 4U.

Next, the degree of bending in the width direction on the lower end side of the curved panel 31 will be described. The lower end side of the curved panel 31 projects forward from the upper end side. Therefore, the radius of curvature on the lower end side of the curved panel 31 is also smaller than the radius of curvature of the upper frame 33 and the groove portion 4U.

As described above, according to the present embodiment, since the groove portions 4U, the groove portions 6L, 6R and the groove portions 4L are formed in the front spoiler 1, the strength of the front spoiler 1 is increased even if the reinforcing member is not used. Therefore, the twist and distortion generated in the front spoiler 1 due to the wind pressure received while the vehicle is running are reduced, and it is possible to exhibit aerodynamic performance and the like.

Further, in the present embodiment, the front member 3, the pair of side surface members 5L, 5R and the bottom member 7 including the curved panel 31 are integrally configured, but the curved panel is composed of the groove 4U, the groove 6L, 6R and the groove 4L. 31 looks like a separate member.

<2. Modification example>
The front spoiler according to the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made within the scope of the claims.

For example, in the above embodiment, the case where the groove portion 4U, the groove portions 6L, 6R and the groove portion 4L are configured as one continuous groove is illustrated, but the present invention is not limited to this, and the grooves are configured as independent grooves. You may.

Further, in the above embodiment, the case where the front member 3, the pair of side member 5L, 5R and the bottom member 7 are configured as an integral member is illustrated, but the present invention is not limited to this, and the front member 3, the pair of side members 5L, 5R and the bottom member 7 are configured as separate members. You may do it.

Further, in the above embodiment, the case where the groove portions 6L and 6R are formed by a curved line is illustrated (see FIG. 4), but the present invention is not limited to this, and as shown in FIG. 6, it bends in a dogleg shape 2 It may be formed by straight lines 61L and 63L of a book.

Further, in the above embodiment, the case where the front member 3 is composed of three elements of the curved surface panel 31, the groove portion 4U, and the upper frame 33 is illustrated, but the groove portion 4U and the upper frame 33 are not necessarily essential components. For example, as shown in FIG. 7, the groove portion 4U and the upper frame 33 may be removed from the front spoiler 1.

Even in such a modified example, it is possible to reduce the twist and distortion of the front spoiler 1 by the groove portions 6L and 6R and the groove portions 4L.

As described above, the front spoiler according to the present invention is suitable for mounting on the front bumper of a vehicle.

1 Front spoiler 3 Front member 4L, 4U Groove 5 (5L, 5R) Side member 6L, 6R Groove 7 Bottom member 31 Curved panel 31C Center 31L Left end 33 Upper frame D1 Front-back direction D2 Left-right direction D3 Vertical direction

Claims (5)

It is a front spoiler installed at the bottom of the front bumper of the vehicle.
In the state of being mounted on the vehicle,
A front member including a curved panel elongated in the width direction of the vehicle, and
A pair of left and right members extending from the left and right ends of the front member to the rear of the vehicle,
A bottom member that enters toward the center of the vehicle from the lower end of the front member and the lower ends of the pair of left and right members and faces the ground.
Equipped with
The curved panel has a concave curved surface whose lower end protrudes forward from the upper end in the vertical direction, and has a shape in which the center protrudes forward from the left and right ends in the left-right direction.
A first groove extending in the width direction of the vehicle is formed between the front member and the bottom member.
A front spoiler characterized in that a second groove extending in the vertical direction is formed between the front member and the pair of left and right members. The front spoiler according to claim 1, wherein the first groove and the second groove are continuously formed as one groove. The front member includes a frame above the curved panel.
The front spoiler according to claim 1 or 2, wherein a third groove extending in the width direction of the vehicle is formed between the curved panel and the frame. The front spoiler according to claim 3, wherein the first groove, the second groove, and the third groove are formed as one continuous groove. The front spoiler according to any one of claims 1 to 4, wherein the front spoiler is integrally molded by injection molding using a mold.

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