JP7597612B2 - Automotive exterior parts - Google Patents

Description

The present invention relates to an automotive exterior part that is attached to the front pillar of an automobile.

As shown in Fig. 1, when a vehicle is moving, part of the traveling wind W that flows over the windshield toward the side of the vehicle body separates from the surface of the vehicle body at the front pillar part P, generating a separated flow S that returns to the vehicle body side. The separated flow S also generates a vertical vortex V that rises in a vortex shape along the front pillar part P. It is known that the separated flow S and the vertical vortex V are the cause of wind noise.
As a technique for suppressing the generation of wind noise, for example, Patent Document 1 discloses a straightening device that is configured by arranging a plurality of approximately horizontal straightening fins protruding toward the sides of the vehicle body from top to bottom on the surface of the front pillar section. This straightening device prevents the development of the longitudinal vortex V by dividing the longitudinal vortex V that is generated at the front pillar section and attempts to develop from the bottom to the top along the front pillar section with the straightening fins, thereby reducing wind noise.

Japanese Utility Model Application Publication No. 58-160879

Although the above-mentioned straightening device can prevent the development of vertical vortices V, when the vehicle is moving, the wind is constantly flowing over the surface of the vehicle, and this can result in wind noise due to the separated flow S that is constantly generated by the wind passing between the straightening fins.

The object of the present invention is to provide an automotive exterior part that can reduce wind noise by weakening the separated flow and vertical vortexes that occur when the wind flowing over the windshield separates at the front pillar.

In order to achieve the above-mentioned object, the invention described in claim 1 is characterized in that it is capable of being attached to the outer surface of the front pillar portion of an automobile, and has a protruding portion that protrudes toward the outside of the vehicle body when attached to the front pillar portion, and the protruding portion is formed by combining two or more guide portions for guiding the traveling wind in a desired direction, and each guide portion has one or more first inclined surfaces that incline outward in the left-right direction of the vehicle body from the front to the rear of the vehicle body to generate an outward guided wind , and one or more second inclined surfaces that incline upward from the front to the rear of the vehicle body to generate an upward guided wind , and the first inclined surfaces and the second inclined surfaces make it possible to guide the traveling wind in a plurality of different directions.
The invention described in claim 2 is characterized in that in the configuration of claim 1, the first inclined surface or the second inclined surface is formed as a flat surface.
The invention as set forth in claim 3 is characterized in that in the configuration of claim 1 or 2 , the protrusion is provided on a surface of the main body portion which is attachable to an outer surface of the front pillar portion.
The invention as set forth in claim 7 is characterized in that, in the configuration of any one of claims 1 to 3 , the device is attached to the automobile equipped with a side visor.

In the present invention, forming to be thick means forming by increasing the plate thickness.

According to the invention described in claim 1, the traveling wind is guided by two or more guide parts to give it any directionality, and the first inclined surface can generate an outward guided wind toward the outside of the vehicle body, and the second inclined surface can generate an upward guided wind toward the upper side. The generated outward guided wind and upward guided wind collide with the longitudinal vortices and separated flows, so that the longitudinal vortices and separated flows are offset or attenuated, thereby reducing wind noise. The longitudinal vortices and separated flows are offset or attenuated by the collision with the guided wind, thereby reducing wind noise.
According to the invention as recited in claim 3 , the contact area with the front pillar portion is increased by providing the main body portion, so that the vehicle can be securely attached to the front pillar portion.
According to the invention described in claim 4 , by canceling or attenuating the separated flow by the induced wind, the generation of turbulence that occurs inside the side visor due to the separated flow and that is one of the causes of wind noise can be reduced, thereby reducing wind noise.

FIG. 2 is an explanatory diagram showing the flow of wind around a front pillar of a vehicle body to which the automotive exterior accessory of the present invention is not attached. 1A and 1B are explanatory views of an automobile exterior part of the present invention, in which FIG. 1A is a perspective view, and FIGS. 1B and 1C are perspective views showing the flow of air induced by the automobile exterior part. 3A is an explanatory diagram showing the protruding width dimension of the automobile exterior part of the present invention, FIG. 3B is an explanatory diagram showing the inclination angle in the vertical direction, and FIG. 3C is a cross-sectional view taken along line A-A in FIG. 3B, showing the inclination angle in the horizontal direction. FIG. 1 is an explanatory diagram showing a vehicle body to which an automobile exterior accessory of the present invention is attached. FIG. 2 is an explanatory diagram showing the flow of wind around a front pillar of a vehicle body with the automotive exterior accessory of the present invention attached. FIG. 1 is a perspective view showing an automobile exterior part of the present invention having a main body portion. 7A and 7B are explanatory diagrams showing a modified example 1 of an automobile exterior part according to an embodiment of the present invention, in which (a) is a perspective view, (b) is a cross-sectional view taken along line B-B in FIG. 7A, and (c) is an enlarged cross-sectional view taken along line C-C in FIG. 7A. 8A and 8B are explanatory diagrams showing another form of the modified example 1 of the automobile exterior part according to the embodiment of the present invention, in which (a) is a perspective view and (b) is an enlarged end view taken along the line DD in FIG. 8A. 9(b) is an explanatory diagram showing the protruding width dimension of the automotive exterior part of modified example 1; (b) is an explanatory diagram showing the inclination angle of the second inclined surface; (c) is an end view of line E-E of Figure 9(b) which is an explanatory diagram showing the inclination angle of the first inclined surface; (d) is an end view of line E-E of Figure 9(b) which is an explanatory diagram showing the inclination angle of the rear end of the first inclined surface; and (e) is an enlarged end view of line F-F of Figure 9(b) which is an explanatory diagram showing the inclination angle between the second inclined surface and the main body portion, the inclination angle between the main body portion of the lower part of the composite guiding portion, the protruding width of the composite guiding portion, the width length of the guiding portion, and the spacing between adjacent composite guiding portions. 10A and 10B are explanatory diagrams showing wind flow around an automobile exterior part of the first modified example, in which FIG. 10A shows an outward flow and FIG. 11(a) is an explanatory diagram showing another form of the modified example 1 of the automobile exterior part of the embodiment of the present invention, (a) is a perspective view, (b) is an enlarged view of the part surrounded by the circular frame M in FIG. 11(a), and (c) is an end view of the line G-G in FIG. 11(a). 1A, 1B, and 1C are explanatory views showing a modified example 2 of an automobile exterior part according to an embodiment of the present invention, in which FIG. 1A is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 2, FIG. 1B is an explanatory diagram showing the inclination angle of the second inclined surface, and FIG. 1C is an explanatory diagram showing the inclination angle of the first inclined surface. 10A to 10C are explanatory diagrams showing the flow of wind around an automobile exterior part of modified example 2, where (a) is the outward flow, (b) is the upward flow, and (c) is the wind flow as viewed from above. 1A and 1B are explanatory diagrams showing a modified example 3 of an automobile exterior part according to an embodiment of the present invention, in which (a) is a perspective view and (b) is a front view. 1A is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 3, FIG. 1B is an explanatory diagram showing the inclination angle of the second inclined surface, and FIG. 1C is an explanatory diagram showing the inclination angle of the first inclined surface. 13A to 13C are explanatory diagrams showing the flow of wind around an automobile exterior part of Modification 3, in which (a) shows the outward flow, (b) shows the upward flow, and (c) shows the wind flow as viewed from above. 11A and 11B are explanatory diagrams showing a fourth modified example of an automobile exterior part according to an embodiment of the present invention, in which (a) is a perspective view and (b) is a front view. 1A is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 4, FIG. 1B is an explanatory diagram showing the inclination angle of the second inclined surface, and FIG. 1C is an explanatory diagram showing the inclination angle of the first inclined surface. 13A and 13B are explanatory diagrams showing the flow of wind around an automobile exterior part of Modification 4, in which (a) shows the outward flow and (b) shows the upward flow. 11A and 11B are explanatory diagrams showing a modified example 5 of an automobile exterior part according to an embodiment of the present invention, in which (a) is a perspective view and (b) is a front view. 1A is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 5, FIG. 1B is an explanatory diagram showing the inclination angle of the second inclined surface, and FIG. 1C is an explanatory diagram showing the inclination angle of the first inclined surface. 13A and 13B are explanatory diagrams showing the flow of wind around an automobile exterior part of the modified example 5, in which (a) shows the outward flow and (b) shows the upward flow. 24A, 24B, and 24C are explanatory views showing a sixth modified example of an automobile exterior part according to an embodiment of the present invention, in which (a) is a perspective view, (b) is a side view, and (c) is a perspective view of a cross section taken along line HH in FIG. 24A. 25(a) is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 6, (b) is an explanatory diagram showing the inclination angle of the second inclined surface, and (c) is a cross-sectional view taken along line II in FIG. 25(b) and showing the inclination angle of the first inclined surface. 13A and 13B are explanatory diagrams showing wind flow around an automobile exterior part of Modification 5, in which (a) shows an upward flow and (b) shows an outward flow.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 2 is an explanatory diagram of the automobile exterior part of the present invention, in which FIG. 2(a) is a perspective view, and FIG. 2(b) and FIG. 2(c) are perspective views showing the flow of wind induced by the automobile exterior part.
As shown in Fig. 2(a) , the automobile exterior part 1 is attached to the front pillar part P ( Fig. 4 ), and includes integrally formed guide parts 2a, 2b, and 2c that protrude in a strip shape with a substantially triangular cross section toward the outside of the vehicle body (to the left in Fig. 2 ) and have different inclination angles α (described later). In the automobile exterior part 1 attached to the front pillar part P, the guide parts 2a and 2c are formed with a first inclined surface T1 that inclines outward in the left-right direction of the vehicle body from the front to the rear of the vehicle body, and as shown in Fig. 2(b) , the running wind W that flows along the first inclined surfaces T1 and T1 of the guide parts 2a and 2c is guided to flow toward the outside of the vehicle body as outward guided wind O. On the other hand, a second inclined surface T2 that slopes upward from the front to the rear of the vehicle body is formed in the guidance sections 2a, 2b, and 2c, and as shown in Figure 2 (c), the running wind W that flows along the second inclined surfaces T2, T2, and T2 in the guidance sections 2a, 2b, and 2c is guided upward as upward guided wind U.

The cross-sectional shape of the automobile exterior part 1 is not limited to a substantially triangular shape, and may be a rectangular shape, an arc shape, or other similar shapes. As long as the automobile exterior part 1 has the first inclined surface T1 and the second inclined surface T2, the automobile exterior part 1 can be designed into any shape, and may be formed, for example, into a plate shape that protrudes toward the outside of the vehicle body when attached to the front pillar part P and has guide parts 2a, 2b, and 2c on the upper side.
In addition, in the automobile exterior part 1, the inclined surfaces T1, T2, T1 of the guiding portions 2a, 2b, 2c are provided continuously with their respective boundaries interposed therebetween, thereby forming a smooth flow of guiding air.
On the other hand, although not shown, the guide portions 2a, 2b, and 2c do not have to be continuous, and for example, the guide portions 2a, 2b, and 2c may be formed as separate guide portions having at least the first inclined surface T1 or the second inclined surface T2, and the automobile exterior part of the present invention may be configured by combining these guide portions. In this case, the mounting position on the front pillar portion P can be arbitrarily set as long as it is possible to guide the running wind as at least the outward guided wind O and the upward guided wind U.

FIG. 3(a) is an explanatory diagram showing the protruding width dimension of the automotive exterior part of the present invention, FIG. 3(b) is an explanatory diagram showing the inclination angle of the second inclined surface, and FIG. 3(c) is a cross-sectional view taken along line A-A of FIG. 3(b) and is an explanatory diagram showing the inclination angle of the first inclined surface.
The protruding width D1 from the front pillar portion P of the automobile exterior part 1 shown in Fig. 3(a) is set in the range of 1 mm ≤ D1 ≤ 100 mm, and preferably in the range of 10 mm ≤ D1 ≤ 50 mm. This allows the traveling wind to be effectively guided as the outward guided wind O and the upward guided wind U.
In addition, the inclination angle α1 of the second inclined surface T2 shown in Figure 3 (b) is set in the range of 1°≦α1≦89°, and preferably in the range of 10°≦α1≦45°, based on a line L1 parallel to the ground when attached to the front pillar portion P.
In addition, the inclination angle θ1 of the first inclined surface T1 shown in Figure 3 (c) is set in the range of 90°≦θ1≦179°, and preferably in the range of 135°≦θ1≦179°, based on a line L2 parallel to the center line connecting the front and rear of the vehicle body when attached to the front pillar portion P.

Next, a method for attaching the automobile exterior part 1 to an automobile and the flow of wind while the automobile is traveling will be described. Fig. 4 is an explanatory diagram showing a vehicle body with the automobile exterior part of the present invention attached. Fig. 5 is an explanatory diagram showing the flow of wind while the automobile is traveling around the front pillar of the vehicle body with the automobile exterior part of the present invention attached.
4, the automobile exterior accessory 1 is attached to the lower outer surface of the front pillar part P by a mounting means (not shown) such as double-sided tape. In the present invention, the lower part of the front pillar part P is defined as the lower half of the front pillar part P in the inclination direction.

As described above, the traveling wind W is guided as the outward guided wind O and the upward guided wind U by the guide sections 2a, 2b, and 2c. Then, as shown in FIG. 5, in the vicinity of the front pillar section P, the outward guided wind O and the upward guided wind U generate a vortex RV that rotates in the opposite direction to the vertical vortex generated with traveling. The generated vortex RV collides with the separated flow and the vertical vortex that cause wind noise, and the separated flow and the vertical vortex are offset or attenuated, so that the wind noise can be reduced. In addition, by providing the guide sections 2a, 2b, and 2c in succession, the outward guided wind O and the upward guided wind U become smooth guided winds, so that the separated flow and the vertical vortex are effectively offset or attenuated, and the wind noise can be reduced.
Since the vicinity of the lower end of the front pillar portion P is the starting point of vertical vortices, by attaching the automotive exterior part 1 near the lower end of the front pillar portion P, the vertical vortices can be offset or attenuated before they develop, thereby effectively reducing wind noise.

The automobile exterior part 1 of the above-mentioned form can be attached to the outer surface of the front pillar part P of the automobile, and when attached to the front pillar part P, it protrudes toward the outside of the vehicle body and is integrally provided with guide parts 2a, 2b, and 2c for guiding the running wind W in different directions.
According to the automobile exterior part 1 configured in this manner, the driving wind W is guided by the guide portions 2a, 2b, and 2c to give it an upward or outward directivity, and is directed upward and outward as the upward guided wind U and the outward guided wind O, and is made to collide with the vertical vortex and separated flow generated around the front pillar. Since the vertical vortex and separated flow are offset or attenuated by the collision with the upward guided wind U and the outward guided wind O, it is possible to reduce wind noise.

In addition, when the guide portions 2a, 2b, and 2c are installed, a first inclined surface T1 that inclines outward in the left-right direction of the vehicle body from the front to the rear, and a second inclined surface T2 that inclines upward from the front to the rear of the vehicle body.
Therefore, the first inclined surface T1 can generate an outward induced wind O that flows toward the outside of the vehicle body, and the second inclined surface T2 can generate an upward induced wind U that flows upward. The outward induced wind O and the upward induced wind U that are generated collide with the longitudinal vortices and the separated flow, and therefore the longitudinal vortices and the separated flow are offset or attenuated, thereby reducing wind noise.

In addition, when a side visor is installed on a vehicle, turbulence caused by separated airflow getting caught inside the side visor is one of the causes of wind noise. However, by canceling out or attenuating the separated airflow with the outward guided air O and upward guided air U, the airflow getting caught inside the side visor can be reduced, thereby reducing wind noise.

The automobile exterior part 1 may be configured to include a plate-shaped main body 50 on the vehicle body side when attached to the front pillar part P, as shown in FIG. 6, for example.
By providing the main body portion 50, the mounting area to the front pillar portion P is increased, so that the automobile exterior accessory 1 can be mounted securely to the front pillar portion P.

FIG. 7 is an explanatory diagram showing a modified example 1 of an automobile exterior part according to an embodiment of the present invention, in which (a) is a perspective view, (b) is an end view taken along line B-B in FIG. 7(a), and (c) is an end view taken along line C-C in FIG. 7(a).
As shown in Figures 7(a), (b), and (c), when the automobile exterior part 1a is attached to the front pillar part P, the width of the protrusion toward the outside of the vehicle body (to the left in Figure 7) increases as it moves rearward, and the automobile exterior part 1a is provided with three protrusions 40 arranged adjacent to each other at a predetermined interval in the vertical direction along the inclination direction of the front pillar part P, in front of the outer surface of the main body part 50, the three protrusions 40 being substantially trapezoidal in shape and having a guide part 2d that functions as a first inclined surface T1 and a guide part 2e that functions as a second inclined surface T2.

Adjacent composite induction sections 3 are arranged with a gap (minimum gap) h1 of at least half the minimum width H1 of the induction section 2d (FIG. 9). Here, the minimum width H1 of the induction section 2d refers to the width H at the position where the vertical width of the induction section 2d is smallest, and the minimum gap h1 refers to the gap h at the position where the vertical width between the composite induction sections 3 is smallest. With this arrangement, the outward induction wind O and the upward induction wind U induced by the multiple composite induction sections 3 disturb the vertical vortex and the separated flow, and cancel or attenuate them, thereby effectively reducing wind noise.
In addition, the multiple composite guiding parts 3 may be provided integrally as the protruding parts 40 or may be provided as independent separate bodies, and the number of them to be provided can be set arbitrarily. However, it is preferable that the number of the composite guiding parts 3 is three or more.
8A and 8B are explanatory diagrams showing another form of the modified example 1 of the automobile exterior part according to the embodiment of the present invention, where (a) is a perspective view and (b) is an enlarged end view taken along the line DD in FIG. 8A.
As shown in Figures 8(a) and (b), an automobile exterior part 1a', which is another form of the automobile exterior part 1a, has multiple composite guiding parts 3 provided as independent separate bodies, so that a path for the traveling wind is formed between one composite guiding part 3 and another composite guiding part 3 from the front end to the rear end of the automobile exterior part 1a', thereby more effectively reducing wind noise.
Furthermore, the composite guiding portion 3 is not limited to an approximately trapezoidal shape, but may be triangular or rectangular as long as it has a guiding portion that functions as a first inclined surface and a guiding portion that functions as a second inclined surface.

FIG. 9(a) is an explanatory diagram showing the protruding width dimensions of the automotive exterior part of modified example 1, FIG. 9(b) is an explanatory diagram showing the inclination angle of the second inclined surface, FIG. 9(c) is an end view of line E-E of FIG. 9(b) and is an explanatory diagram showing the inclination angle of the first inclined surface, FIG. 9(d) is an end view of line E-E of FIG. 9(b) and is an explanatory diagram showing the inclination angle of the rear end of the first inclined surface, and FIG. 9(e) is an enlarged end view of line F-F of FIG. 9(b) and is an explanatory diagram showing the inclination angle between the second inclined surface and the main body portion, the inclination angle between the main body portion of the lower part of the composite guiding portion, the protruding width of the composite guiding portion, the width length of the guiding portion, and the spacing between adjacent composite guiding portions.
The protruding width D2 from the front pillar part P of the automobile exterior part 1a shown in Fig. 9(a) is set in the range of 1 mm ≦ D2 ≦ 100 mm, and preferably set to 5 mm ≦ D2 ≦ 13 mm. The minimum value D2 (min) and the maximum value D2 (max) of the protruding width D2 satisfy the relationship of D2 (min) ≦ D2 (max) < D2 (min) × 7. Furthermore, the composite guiding part 3 satisfies the relationship of D2a ≦ D2b in the protruding width D2a below the composite guiding part and the protruding width D2b above the composite guiding part shown in Fig. 9(e). This allows the running wind to be effectively guided as the outward guided wind O and the upward guided wind U.
In addition, the inclination angle α2a of the second inclined surface T2 shown in Figure 9 (b) is set in the range of 1°≦α2a≦89°, and preferably in the range of 10°≦α2a≦45°, with respect to a line L1 parallel to the ground when the vehicle is attached to the front pillar portion P.
In addition, the inclination angle θ2a of the first inclined surface T1 shown in Figure 9 (c) is set in the range of 90°≦θ2a≦179°, and preferably in the range of 135°≦θ2a≦179°, based on a line L2 parallel to the center line connecting the front and rear of the vehicle body when attached to the front pillar portion P.
The inclination angle θ2b of the rear end of the first inclined surface T1 shown in FIG. 9D is set in the range of 90°≦θ2b≦135° with respect to the surface of the main body 50.
In addition, the inclination angle α2b between the second inclined surface T2 shown in Figure 9 (e) and the inclination angle α2c between the lower part of the composite guiding section 3 and the main body portion 50 are set in the ranges of 90°≦α2b≦135° and 90°≦α2c≦135°, respectively.
9(b) and (e), the width H of the guide portion 2d is set to any value between the minimum width H1 and the maximum width H2. Here, the maximum width H2 refers to the width H at the position where the vertical width of the guide portion 2d is the largest. The minimum width H1 and the maximum width H2 satisfy the relationship H1≦H2<H1×30. The minimum width H1 is preferably 5 mm or more.
Meanwhile, the interval h between adjacent composite guiding sections 3 is set to any value between the minimum interval h1 and the maximum interval h2. Here, the maximum interval h2 refers to the interval h at the position where the vertical width between the adjacent composite guiding sections 3 is the largest. The minimum interval h1 and the maximum interval h2 satisfy the relationship h1≦h2<h1×12. Moreover, the minimum interval h1 is preferably 2 mm or more.
The width H of the combined guiding portion 3 may be smaller at the rear side than at the front side when attached to the front pillar portion P, or may be larger at the rear side than at the front side. The same applies to the interval h between adjacent combined guiding portions 3.
In addition, the inclination angle of each portion may be set to the same value throughout the entire portion within the respective setting range, or the setting value may be changed.

Next, the flow of air around the automobile exterior part of the first modification will be described.
FIG. 10 is an explanatory diagram showing the flow of wind around the automobile exterior part of the first modified example, where (a) shows the outward flow and (b) shows the upward flow.
The automobile exterior part 1a is attached to the lower part of the front pillar part P by a mounting means (not shown) such as double-sided tape. As shown in Fig. 10(a), the guiding parts 2d, 2d, 2d guide the traveling wind W flowing on their surfaces to flow toward the outside of the vehicle body as outward guided wind O. On the other hand, the guiding parts 2e, 2e, 2e guide the traveling wind W flowing on their surfaces to flow upward as upward guided wind U, as shown in Fig. 10(b).
By providing three composite induction sections 3, 3, 3 that induce the running wind W as described above, three induced winds are generated, each of which disrupts the longitudinal vortices and separated flows and cancels or attenuates them, thereby further reducing wind noise.

FIG. 11 is an explanatory diagram showing another form of the modified example 1 of the automobile exterior part of the embodiment of the present invention, where (a) is a perspective view, (b) is an enlarged view of the part surrounded by the circular frame M in FIG. 11(a), and (c) is an end view of the line G-G in FIG. 11(a).
11(a), in another embodiment 1a'' of the modified example 1, when attached to the front pillar portion P, a recess 50a is formed on the front edge of the protrusion 40a, thereby forming guide portions 2f, 2g from near the lower end to the upper end of the protrusion 40a. Further, the guide portion 2f has a function as the second inclined surface T2, and the guide portion 2g has the functions of both the first inclined surface T1 and the second inclined surface T2.
The inclination angle α2d of the guide portion 2f shown in FIG. 11(b) is set in the range of 5°≦α2d≦20° with respect to a line L1 parallel to the ground when attached to the front pillar portion P.
Further, the inclination angle θ2c of the guide portion 2g shown in FIG. 11(c) is set in the range of 90°<θ2c≦135°.
This enables the running wind to be more effectively guided as the outward guided wind O and the upward guided wind U.

FIG. 12 is an explanatory diagram showing a modified example 2 of an automobile exterior part according to an embodiment of the present invention, where (a) is a perspective view, (b) is a front view, and (c) is a plan view.
The automobile exterior part 1b, when attached to the front pillar part P, has a wing part 6 that protrudes toward the outside of the vehicle body (left direction in FIG. 12) and has a width of protrusion that increases toward the rear as it approaches the rear as shown in FIGS. 12(a) to 12(c). The outer edge of the wing part 6 is formed with a vertical wall part 70 that stands upright upward. The vertical wall part 70 has an extension part 70a that extends upward near the rear of the vertical wall part 70. The extension part 70a is formed in a substantially T-shaped cross section that becomes thicker in the left-right direction of the vehicle body as it approaches the rear as shown in FIG. 10(c). The extension part 70a is provided at an incline toward the vehicle body (right direction in FIG. 12) from the front to the rear as shown in FIG. 12(b).

The wing portion 6 forms the guide portion 2h and functions as the second inclined surface T2, and the thick portion outer surface 70b of the vertical wall portion 70 forms the guide portion 2i and functions as the first inclined surface T1. On the other hand, the thick portion inner surface 70c of the vertical wall portion 70 forms the guide portion 2j and functions as the second inclined surface T2.

The vertical wall portion 70 may be formed at any position on the wing portion 6, and may be formed, for example, at the center of the protruding direction of the wing portion 6 across the front-rear direction of the vehicle body, or may be provided only in front of the outer edge of the wing portion 6. Furthermore, the vertical wall portion 70 may be provided toward the bottom of the wing portion 6, or on both the top and bottom sides. In addition, a plurality of vertical wall portions 70 may be provided on the wing portion 6.
In addition, the cross-sectional shape of the vertical wall portion 70 including the wing portion 6 may be, other than the approximately L-shape as described above, an approximately U-shape, as in variant example 4 described below, or an approximately T-shape, approximately F-shape, or approximately arc-shaped, and is not limited as long as the shape does not diffuse the wind caused by running.

The automobile exterior part 1b may be configured to have a plate-shaped main body on the vehicle body side when attached to the front pillar part P, as shown in FIG.
By providing the main body portion, the mounting area to the front pillar portion P is increased, so that the automobile exterior accessory 1 can be mounted securely to the front pillar portion P.

FIG. 13(a) is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 2, FIG. 13(b) is an explanatory diagram showing the inclination angle of the second inclined surface, and FIG. 13(c) is an explanatory diagram showing the inclination angle of the first inclined surface.
The protruding width D3 from the front pillar portion P of the automobile exterior part 1b shown in Fig. 13(a) is set in the range of 1 mm ≤ D3 ≤ 100 mm, and preferably in the range of 10 mm ≤ D3 ≤ 50 mm. This allows the traveling wind to be effectively guided as the outward guided wind O and the upward guided wind U.
In addition, the inclination angle α3 of the second inclined surface T2 shown in Figure 13 (b) is set in the range of 1°≦α3≦89°, and preferably in the range of 10°≦α3≦45°, with respect to the parallel line L1 with the ground when attached to the front pillar portion P.
In addition, the inclination angle θ3 of the first inclined surface T1 shown in Figure 13 (c) is set in the range of 90°≦θ3≦179°, and preferably in the range of 135°≦θ3≦179°, based on a line L2 parallel to the center line connecting the front and rear of the vehicle body when attached to the front pillar portion P.

Next, the flow of air around the automobile exterior part of the second modification will be described.
FIG. 14 is an explanatory diagram showing the flow of wind around an automobile exterior part of the modified example 2, where (a) shows the outward flow, (b) shows the upward flow, and (c) shows the wind flow as viewed from above.
The automobile exterior part 1b is attached to the lower part of the front pillar part P by a mounting means (not shown) such as double-sided tape. As shown in Fig. 14(a), the guide part 2i guides the traveling wind W flowing on its surface to the outside of the vehicle body as outward guided wind O. On the other hand, as shown in Fig. 14(b), the guide parts 2h and 2j guide the traveling wind W flowing on its surface to the upward direction as upward guided wind U. At this time, the traveling wind W flowing from the windshield is received by the vertical wall part 70 and guided to the guide parts 2h and 2j, so that the traveling wind W can be guided efficiently.
In addition, by providing the vertical wall portion 70 at an incline toward the vehicle body, the space 80 formed by the vertical wall portion 70 and the outer surface of the front pillar portion P is narrowed from the front to the rear as shown in Figure 14 (c). This allows the upward guided wind U to be accelerated as it passes through the space 80, and the outward guided wind O and the accelerated upward guided wind U can effectively cancel out or attenuate the vertical vortices and separated flows, thereby further reducing wind noise.

FIG. 15 is an explanatory diagram showing a modified example 3 of an automobile exterior part according to an embodiment of the present invention, where (a) is a perspective view and (b) is a front view.
The automobile exterior part 1c includes a main body 51 whose plate thickness increases toward the outside of the vehicle body (left direction in FIG. 11) as it approaches the rear when attached to the front pillar part P, as shown in FIG. 15(a), and a protrusion 41 provided near the center in the vertical direction in the inclination direction of the front pillar part P of the outer surface 51a of the main body 51 and protruding outward when attached to the front pillar part P. The protrusion 41 includes a wing part 6 whose protruding width toward the outside increases toward the rear, and a vertical wall part 71 that stands upright upward is provided on the outer edge of the wing part 6. The vertical wall part 71 has an extension part 71a that extends upward near the rear of the vertical wall part 71. The vertical wall part 71 is formed to be inclined toward the vehicle body (right direction in FIG. 13) so that a space 80 formed by the vertical wall part 71 and the outer surface 51a of the main body part 51 narrows from the front to the rear.
The outer surface 51a of the main body 51 forms the guide portion 2k and functions as a first inclined surface T1, and the wing portion 6 forms the guide portion 2h and functions as a second inclined surface T2.

The arrangement of the wing portions 6 on the main body portion 51 is not limited to near the center, but may be provided at any position on the outer surface 51a of the main body portion 51.
In addition, the portion of the main body 51 where the plate thickness increases toward the outside may be formed only in a limited range. For example, when the automobile exterior part 1c is viewed from the side, the plate thickness may be increased only in the range that overlaps with the vertical wall portion 71.

FIG. 16(a) is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 3, (b) is an explanatory diagram showing the inclination angle of the second inclined surface, and (c) is an explanatory diagram showing the inclination angle of the first inclined surface.
The protruding width D4 from the front pillar portion P of the automobile exterior part 1c shown in Fig. 16(a) is set in the range of 1 mm ≤ D4 ≤ 100 mm, and preferably in the range of 10 mm ≤ D4 ≤ 50 mm. This allows the traveling wind to be effectively guided as the outward guided wind O and the upward guided wind U.
In addition, the inclination angle α4 of the second inclined surface T2 shown in Figure 16 (b) is set in the range of 1°≦α4≦89°, and preferably in the range of 10°≦α4≦45°, with respect to the parallel line L1 with the ground when attached to the front pillar portion P.
In addition, the inclination angle θ4 of the first inclined surface T1 shown in Figure 16 (c) is set in the range of 90°≦θ4≦179°, and preferably in the range of 135°≦θ4≦179°, based on a line L2 parallel to the center line connecting the front and rear of the vehicle body when attached to the front pillar portion P.

Next, the flow of air around the automobile exterior part of the third modification will be described.
FIG. 17 is an explanatory diagram showing the flow of wind around an automobile exterior part of the modified example 3, where (a) shows the outward flow, (b) shows the upward flow, and (c) shows the wind flow as viewed from above.
The automobile exterior part 1c is attached to the lower part of the front pillar part P by a mounting means (not shown) such as double-sided tape via the inner surface of the main body part 51 (to the right in FIG. 17). As shown in FIG. 17(a), the guide part 2k guides the traveling wind W flowing on its surface to the outside of the vehicle body as outward guided wind O. On the other hand, as shown in FIG. 17(b), the guide part 2h guides the traveling wind W flowing on its surface to the upward direction as upward guided wind U. At this time, the traveling wind W flowing from the windshield is received by the vertical wall part 71 and guided to the guide parts 2h and 2k, so that the traveling wind W can be guided efficiently.

In addition, as shown in FIG. 17(c), the space 80 is formed so as to narrow from the front to the rear, so that the upward guided wind U and the outward guided wind O passing through the space 80 can be accelerated. The accelerated upward guided wind U and the outward guided wind O can effectively cancel out or attenuate the longitudinal vortex and the separated flow, so that the wind noise can be further reduced.

FIG. 18 is an explanatory diagram showing a fourth modified example of an automobile exterior part according to an embodiment of the present invention, where (a) is a perspective view and (b) is a front view.
As shown in FIG. 18(a), the automobile exterior part 1d is provided with a main body 51 whose plate thickness increases toward the outside of the vehicle body (left direction in FIG. 18) as it approaches the rear, and a protruding part 42 protruding toward the outside of the vehicle body on the outer surface 51a of the main body 51. The protruding part 42 has a wing part 6 that slopes upward toward the rear, and is provided with an inverted L-shaped vertical wall part 72 that stands upright upward and forms a tunnel-like space 81 between the wing part 6 and the outer surface 51a of the main body 51 over the entire area in the front-rear direction of the wing part 6. The vertical wall part 72 is formed so that the space 81 narrows from the front to the rear, as shown in FIG. 18(b). The upper end of the vertical wall part 72 does not have to be in contact with the vehicle body, but it is preferable that it is in contact with the vehicle body.
The outer surface 51a of the main body 51 forms the guide portion 2k and functions as a first inclined surface T1, and the wing portion 6 forms the guide portion 2h and functions as a second inclined surface T2.

FIG. 19(a) is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 4, (b) is an explanatory diagram showing the inclination angle of the second inclined surface, and (c) is an explanatory diagram showing the inclination angle of the first inclined surface.
The protruding width D5 from the front pillar portion P of the automobile exterior part 1d shown in Fig. 19(a) is set in the range of 1 mm ≤ D5 ≤ 100 mm, and preferably in the range of 10 mm ≤ D5 ≤ 50 mm. This allows the traveling wind to be effectively guided as the outward guided wind O and the upward guided wind U.
In addition, the inclination angle α5 of the second inclined surface T2 shown in Figure 19 (b) is set in the range of 1°≦α5≦89°, and preferably in the range of 10°≦α5≦45°, with respect to the parallel line L1 with the ground when attached to the front pillar portion P.
In addition, the inclination angle θ5 of the first inclined surface T1 shown in Figure 19 (c) is set in the range of 90°≦θ5≦179°, and preferably in the range of 135°≦θ5≦179°, based on a line L2 parallel to the center line connecting the front and rear of the vehicle body when attached to the front pillar portion P.

Next, the flow of air around the automobile exterior part of the fourth modification will be described.
FIG. 20 is an explanatory diagram showing the flow of wind around an automobile exterior part of the fourth modified example, where (a) shows the outward flow and (b) shows the upward flow.
The automobile exterior part 1d is attached to the lower part of the front pillar part P by a mounting means (not shown) such as double-sided tape via the inner surface of the main body part 51 (to the right in FIG. 20). As shown in FIG. 20(a), the guide part 2k guides the traveling wind W flowing on its surface to the outside of the vehicle body as outward guided wind O. On the other hand, as shown in FIG. 20(b), the guide part 2h guides the traveling wind W flowing on its surface to the upward direction as upward guided wind U. At this time, the traveling wind W flowing from the windshield is received by the vertical wall part 72 and guided to the guide parts 2h and 2k, so that the traveling wind W can be guided efficiently.

In addition, because the space 81 is formed so as to narrow from the front to the rear, the upward guided wind U and the outward guided wind O passing through the space 81 can be accelerated. The accelerated upward guided wind U and outward guided wind O can effectively cancel out or attenuate the vertical vortex and separated flow, thereby further reducing wind noise.

FIG. 21 is an explanatory diagram showing a modified example 5 of an automobile exterior part according to an embodiment of the present invention, where (a) is a perspective view and (b) is a front view.
As shown in FIG. 21(a), the automobile exterior part 1e is provided with a main body 51 whose plate thickness increases toward the outside of the vehicle body (leftward in FIG. 21) as it approaches the rear, and a protruding portion 43 protruding outward from an outer surface 51a of the main body 51. The protruding portion 43 has a wing portion 6 that slopes upward as it approaches the rear, and two straightening fins 9, 9 are provided in parallel above and below the wing portion 6. In addition, an inverted L-shaped vertical wall portion 72 is provided over the entire area of the wing portion 6 in the front-rear direction, which is inverted upward and forms three tunnel-like spaces 82 between the wing portion 6 and the outer surface 51a of the main body 51 together with the wing portion 6 and the straightening fins 9, 9. The vertical wall portion 72 is formed so that the space 82 narrows from the front to the rear, as shown in FIG. 21(b). Furthermore, on the outer surface of the vertical wall portion 72, at positions where the flow straightening fins 9, 9 are provided on the inside, ribs R, R protruding outward in a mountain shape are provided.
The outer surface 51a of the main body 51 forms an induction portion 2k and functions as a first inclined surface T1, the wing portion 6 and the straightening fins 9, 9 each form an induction portion 2h, and the upper surfaces of the ribs R, R form an induction portion 2l, all of which function as a second inclined surface T2.
The position and number of the rectifying fins 9 are not limited as long as they are between the main body portion 51 and the vertical wall portion 72. In addition, the left and right edges of the rectifying fins 9 are provided in contact with either or both of the main body portion 51 and the vertical wall portion 72.

In addition, ribs R and straightening fins 9 may be appropriately provided on the outer surface 51a of the main body 51, the wing portion 6, and the vertical wall portion 72 for the purpose of straightening the wind generated during running. Instead of the ribs R and the straightening fins 9, the surface may be molded into an uneven shape.
In addition, the cross-sectional shape of the space 82 formed by the blade portion 6 and/or the flow straightening fin 9, the vertical wall portion 72 and the outer surface 51a of the main body portion 51 can be designed to be any shape, such as a substantially circular shape other than a substantially rectangular shape.

Figure 22(a) is an explanatory diagram showing the protruding width dimension of an automobile exterior part of modified example 5, (b) is an explanatory diagram showing the inclination angle of the second inclined surface, and (c) is an explanatory diagram showing the inclination angle of the first inclined surface.
The protruding width D6 from the front pillar portion P of the automobile exterior part 1e shown in Fig. 22(a) is set in the range of 1 mm ≤ D6 ≤ 100 mm, and preferably in the range of 10 mm ≤ D6 ≤ 50 mm. This allows the traveling wind to be effectively guided as the outward guided wind O and the upward guided wind U.
In addition, the inclination angle α6 of the second inclined surface T2 shown in Figure 22 (b) is set in the range of 1°≦α6≦89°, and preferably in the range of 10°≦α6≦45°, with respect to the parallel line L1 with the ground when attached to the front pillar portion P.
In addition, the inclination angle θ6 of the first inclined surface T1 shown in Figure 22 (c) is set in the range of 90°≦θ6≦179°, and preferably in the range of 135°≦θ6≦179°, based on a line L2 parallel to the center line connecting the front and rear of the vehicle body when attached to the front pillar portion P.

Next, the flow of air around the automobile exterior part of the fifth modification will be described.
FIG. 23 is an explanatory diagram showing the flow of wind around an automobile exterior part of the modified example 5, where (a) shows the outward flow and (b) shows the upward flow.
The automobile exterior part 1e is attached to the lower part of the front pillar part P via the inner surface of the main body part 51 (to the right in FIG. 23) by a mounting means (not shown) such as double-sided tape. As shown in FIG. 23(a), the guide part 2k guides the traveling wind W flowing on its surface to the outside of the vehicle body as outward guided wind O. On the other hand, as shown in FIG. 23(b), the guide parts 2h and 2l guide the traveling wind W flowing on its surface to the upward direction as upward guided wind U. At this time, the traveling wind W flowing from the windshield is received by the vertical wall part 72 and guided to the guide parts 2h and 2l, so that the traveling wind W can be guided efficiently.

In addition, because the space 82 is formed so as to narrow from the front to the rear, the upward guided wind U and the outward guided wind O passing through the space 82 can be accelerated. The accelerated upward guided wind U and outward guided wind O can effectively cancel out or attenuate the vertical vortex and separated flow, thereby further reducing wind noise.

FIG. 24 is an explanatory diagram showing a modified example 6 of an automobile exterior part according to an embodiment of the present invention, where (a) is a perspective view, (b) is a side view, and (c) is a perspective view of a cross section taken along line HH in FIG. 24(b).
As shown in Fig. 22(a), the automobile exterior part 1f includes a thick, plate-shaped main body 52 that protrudes toward the outside of the vehicle body (to the left in Fig. 24) when attached to a front pillar part P. In the main body 52, a groove 11 having a substantially V-shaped cross section is formed in an V-shape in side view from the lower front edge to the upper rear edge of the main body 52, as shown in Fig. 24(b).
The bottom surface 11a of the rear part of the groove 11 formed with a steep slope forms a guide portion 2m, and as shown in Figures 24(b) and 24(c), it slopes upward from the front to the rear of the vehicle body and slopes outward in the left-right direction of the vehicle body, so it functions as both the first slope T1 and the second slope T2. The bottom surface 11b of the front part of the groove 11 formed with a gentle slope forms a guide portion 2n and functions as the second slope T2.

The cross section of the groove is not limited to an approximately V-shape, but can be changed to an approximately U-shape, an approximately C-shape, etc., as appropriate. In addition, the directionality of the induced air can be further improved by providing multiple protrusions and recesses on the bottom surface of the groove.

Figure 25(a) is an explanatory diagram showing the protruding width dimension of the automobile exterior part of the present invention, (b) is an explanatory diagram showing the inclination angle of the second inclined surface, and (c) is a cross-sectional view taken along line II in Figure 25(b) and is an explanatory diagram showing the inclination angle of the first inclined surface.
The protruding width D7 from the front pillar portion P of the automobile exterior part 1f shown in Fig. 25(a) is set in the range of 1 mm ≤ D7 ≤ 100 mm, and preferably in the range of 10 mm ≤ D7 ≤ 50 mm. This allows the traveling wind to be effectively guided as the outward guided wind O and the upward guided wind U.
In addition, the inclination angle α7 of the second inclined surface T2 shown in Figure 25 (b) is set in the range of 1°≦α7≦89°, and preferably in the range of 10°≦α7≦45°, with respect to the parallel line L1 with the ground when attached to the front pillar portion P.
In addition, the inclination angle θ7 of the first inclined surface T1 shown in Figure 25 (c) is set in the range of 90°≦θ7≦179°, and preferably in the range of 135°≦θ7≦179°, based on a line L2 parallel to the center line connecting the front and rear of the vehicle body when attached to the front pillar portion P.

Next, the flow of air around the automobile exterior part of the sixth modification will be described.
FIG. 26 is an explanatory diagram showing the flow of wind around the automobile exterior part of the modified example 5, where (a) shows the upward flow and (b) shows the outward flow.
The automobile exterior part 1f is attached to the lower part of the front pillar part P by a mounting means (not shown) such as double-sided tape via the inner surface of the main body part 52 (to the right in FIG. 26). As shown in FIG. 26(a), the guide parts 2m and 2n guide the traveling wind W that enters the groove part 11 from the opening 12 at the front end of the groove part 11 to go upward as the upward guided wind U. On the other hand, as shown in FIG. 26(b), the guide part 2m guides the traveling wind W that flows on its surface to go toward the outside of the vehicle body as the outward guided wind O. At this time, the upward guided wind U and the outward guided wind O pass through the inside of the groove part 11, so that they are less affected by the unguided traveling wind W, and more stable upward guided wind U and outward guided wind O can be formed, which can further reduce wind noise.

The present invention has been described above based on the illustrated examples, and the technical scope of the present invention is not limited to these. For example, a plurality of automotive exterior parts may be attached to the front pillar. In this case, parts with different shapes may be combined.
Further, the automobile exterior product is preferably attached below the front pillar, but may be attached anywhere on the front pillar.
The inclination of the guiding portion may be a flat surface or a curved surface. In the case of a curved surface, the inclination angle of the guiding portion is set as the angle between a reference line that is a line parallel to the ground or a line parallel to the center line connecting the front and rear of the vehicle body, and a tangent to the curved surface.
Further, in this specification, the second inclined surface is described as being inclined upward, but it may be inclined downward.
In addition, the space formed by the wing portion, the vertical wall portion, and the front pillar portion or the main body portion may be a narrow space formed behind a wide space, and the configuration for this purpose may be designed as desired. For example, the rear of the vertical wall portion may be inclined toward the vehicle body or made thicker, or a separate member may be provided on the space side of the front pillar portion, the main body portion, or the vertical wall portion, or a different shape may be formed.
In addition, in an automobile equipped with a side visor, the present invention can also be applied to the periphery of the front pillar above the side visor.
Moreover, various dimensions are set within a range that does not cause any problems in terms of regulations such as road transport vehicle safety standards.

1, 1a, 1a', 1a'', 1b, 1c, 1d, 1e, 1f...Automotive exterior products, 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2j, 2k, 2l, 2 m, 2n...guiding part, 40, 41, 42, 43... protruding part, 50, 51, 52... main body part, P... front pillar part, T1... first inclined surface, T2... th 2 slope.

Claims (4)

It can be attached to the outer surface of the front pillar of the automobile,
a protruding portion that protrudes toward an outer side of a vehicle body when the front pillar portion is attached to the front pillar portion,
The protruding portion is formed with two or more combined guide portions for guiding the running wind in a desired direction,
Each of the guiding sections has one or more first inclined surfaces that are inclined outward in the left-right direction of the vehicle body from the front to the rear of the vehicle body to generate an outward guiding wind , and one or more second inclined surfaces that are inclined upward from the front to the rear of the vehicle body to generate an upward guiding wind ,
An automobile exterior part, characterized in that the first inclined surface and the second inclined surface are capable of guiding the traveling wind in a plurality of different directions. 2. The automobile exterior part according to claim 1, wherein the first inclined surface or the second inclined surface is formed as a flat surface. 3. The automobile exterior part according to claim 1 , wherein the protrusion is provided on a surface of a main body that is attachable to an outer surface of the front pillar. 4. The automobile exterior part according to claim 1, which is attached to an automobile equipped with a side visor.

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