JP7206850B2 - vehicle front structure - Google Patents

Description

The present invention comprises a front bumper face, a front grill disposed in the upper center portion of the front bumper face and formed with a running wind introduction port, the inner side in the vehicle width direction adjacent to the front grill, and the lower end adjacent to the front bumper face. and headlamps arranged to.

Conventionally, as disclosed in Patent Document 1, the front structure of a vehicle of the above-described example includes a front grill arranged at the upper center of a front bumper face and formed with a running wind introduction port, and a front grill of the vehicle. A side extending portion extending laterally from a widthwise outer end toward a lower edge of the headlamp, and an upwardly extending portion extending upward from a vehicle widthwise outer end of the front grille toward between the front grille and the headlamp. A decorative member (a so-called signature) having an extension is known.

In order to achieve an ideal flow without vortices that generate air resistance in the front part of the vehicle, it is preferable to flow the running wind along the outer surface of the vehicle. In addition to the lower edge of the headlamp, a decorative member is provided between the headlamp and the front grille, and when the decorative member protrudes forward of the vehicle, the decorative member (particularly, its upper extension portion ) becomes a wall, and the wind that hits the blocked part on the side of the front grill does not flow to the headlamp side, and the wind pressure at the blocked part increases, deteriorating the aerodynamic performance.

Therefore, in order to improve aerodynamic performance, it is conceivable to partially cut out the upper end of the upwardly extending portion of the decorative member. If the cutout portion of the upwardly extending portion of the decorative member were enlarged, there would be a problem that the appearance would deteriorate.

JP 2018-52363 A

Therefore, the present invention separates the running wind so that it does not hit the lens surface of the headlamp directly, directs the separated running wind over the hood, and blows the blocked part on the side of the front grill. An object of the present invention is to provide a front structure of a vehicle capable of allowing the wind to flow outward in the vehicle width direction to merge with the wind flowing toward the bonnet, thereby improving the aerodynamic performance.

A vehicle front structure according to the present invention is a vehicle front structure comprising a front bumper face, a front grill disposed in the upper center of the front bumper face and formed with a running wind introduction port, and a vehicle width direction inner side. is disposed on the front grille and the lower end thereof is adjacent to the front bumper face; a decorative member having an upwardly extending portion extending upward from a vehicle width direction outer end toward between the front grille and the headlamp, the front grille being provided with the running wind introduction port at a central portion thereof. In addition, the side portion of the running wind introduction port is closed by the closing portion, and the decorative member at the lower edge of the headlamp protrudes forward from the lens surface of the headlamp and the lower bumper face surface. At the same time, the amount of protrusion of the upwardly extending portion of the decorative member toward the front of the vehicle is set to decrease as it goes upward, and the top portion of the upwardly extending portion of the decorative member is deviated toward the front grille, and A bumper face upper forming an upper frame of the front grill is tapered to a narrow front, and the front end portion of the bumper face upper has a downwardly curved downwardly extending portion. A downwardly extending apex is formed at a position overlapping with in the vehicle width direction, and an upper end of the top of the upwardly extending portion is provided inward in the vehicle width direction from the downwardly extending apex. It is.

According to the above configuration, the running wind is separated from the front end of the decorative member at the lower edge of the headlamp projecting forward from the bumper face surface, and the separated wind flows over the bonnet, so that the running wind is directed to the headlamp. It is possible to suppress the generation of vortices due to direct contact with the lens surface.

Moreover, the wind that hits the side of the front grill where the airflow inlet is blocked flows outward in the vehicle width direction from the upwardly extending portion of the decorative member due to the structure in which the amount of protrusion of the upwardly extending portion of the decorative member is gradually reduced, and flows onto the bonnet. It is possible to merge the wind flowing toward the front grille, suppress the increase in wind pressure at the blocked portion of the side of the front grille, and improve the aerodynamic performance.

In addition, due to these effects, the Cd value (air drag coefficient) is reduced, and the aerodynamic performance can be improved.
Furthermore, deterioration of the aerodynamic performance of the blocked portion of the front grill can be suppressed, and the front grill design can be set large regardless of the actual size of the opening of the front grill.

Furthermore, since the top of the upwardly extending portion of the decorative member is shifted toward the front grille and formed in a tapered shape with a narrow front side of the vehicle, the following effects are obtained.
That is, the wind that hits the blocked portion of the side of the front grille is reliably separated by the tapered top portion of the upwardly extending portion of the decorative member, and the separated wind is flowed outward in the vehicle width direction to the hood. It can be merged with the wind that flows upwards.

Further, since the top portion of the upper extension portion is formed to be biased toward the front grille side (that is, the vehicle width direction inner side), the light distribution line of the headlamp can be directed toward the vehicle center side.

A vehicle front structure according to the present invention is also a vehicle front structure comprising a front bumper face, a front grill disposed in the upper center of the front bumper face and formed with a running wind introduction port, a vehicle width a headlamp disposed such that its inner side is adjacent to the front grille and its lower end is adjacent to the front bumper face; and a decorative member having an upwardly extending portion extending upward from the vehicle width direction outer end toward between the front grille and the headlamp, the front grille having the running wind introduction port at its central portion. is provided, and the side portion of the running wind introduction port is closed by the closing portion, and the decorative member at the lower edge of the headlamp protrudes forward from the lens surface of the headlamp and the lower bumper face surface. In addition, the amount of protrusion of the upwardly extending portion of the decorative member toward the front of the vehicle is set to decrease as it goes upward, and the top portion of the upwardly extending portion of the decorative member is deviated toward the front grille, and , the vehicle front is formed in a narrow tapered shape, and the lower end of the top of the upwardly extending portion of the decorative member is positioned at the same vehicle width position with respect to the front end of the bumper face upper that forms the upper frame of the front grille, The upper end of the top portion of the upwardly extending portion of the decorative member is provided at a vehicle front position or at substantially the same position in the vehicle front-rear direction, and the upper end portion of the top portion of the upwardly extending portion of the decorative member extends rearward of the vehicle at the same vehicle width position with respect to the front end portion of the bumper face upper. It is provided so as to be positioned.

According to the above configuration, the running wind is separated from the front end of the decorative member at the lower edge of the headlamp projecting forward from the bumper face surface, and the separated wind flows over the bonnet, so that the running wind is directed to the headlamp. It is possible to suppress the generation of vortices due to direct contact with the lens surface.

Moreover, the wind that hits the side of the front grill where the airflow inlet is blocked flows outward in the vehicle width direction from the upwardly extending portion of the decorative member due to the structure in which the amount of protrusion of the upwardly extending portion of the decorative member is gradually reduced, and flows onto the bonnet. It is possible to merge the wind flowing toward the front grille, suppress the increase in wind pressure at the blocked portion of the side of the front grille, and improve the aerodynamic performance.

In addition, due to these effects, the Cd value (air drag coefficient) is reduced, and the aerodynamic performance can be improved.
Furthermore, deterioration of the aerodynamic performance of the blocked portion of the front grill can be suppressed, and the front grill design can be set large regardless of the actual size of the opening of the front grill.

Furthermore, since the top of the upwardly extending portion of the decorative member is shifted toward the front grille and formed in a tapered shape with a narrow front side of the vehicle, the following effects are obtained.
That is, the wind that hits the blocked portion of the side of the front grille is reliably separated by the tapered top portion of the upwardly extending portion of the decorative member, and the separated wind is flowed outward in the vehicle width direction to the hood. It can be merged with the wind that flows upwards.

Further, since the top portion of the upper extension portion is formed to be biased toward the front grille side (that is, the vehicle width direction inner side), the light distribution line of the headlamp can be directed toward the vehicle center side.

A vehicle front structure according to the present invention further comprises a front bumper face, a front grill arranged in the upper center of the front bumper face and formed with a running wind inlet, a vehicle width a headlamp disposed such that its inner side is adjacent to the front grille and its lower end is adjacent to the front bumper face; and a decorative member having an upward extension extending upward from the vehicle width direction outer end toward between the front grille and the headlamp,
The front grille has a structure in which the running wind introduction port is provided in the central portion thereof, and the side portions of the running wind introduction port are closed by blocking portions. The upward extension of the decorative member protrudes forward from the lens surface and the lower bumper face surface of the decorative member, and the amount of protrusion of the upwardly extended portion of the decorative member toward the front of the vehicle is set to decrease as it goes upward, and the upwardly extended portion of the decorative member The top portion is deviated toward the front grille and is tapered toward the front of the vehicle. The top portion of the portion where the inner wall and the outer wall intersect on the front side of the vehicle is formed by a ridge portion that separates the running wind that hits the blocking portion outward in the vehicle width direction. be.

According to the above configuration, the running wind is separated from the front end of the decorative member at the lower edge of the headlamp projecting forward from the bumper face surface, and the separated wind flows over the bonnet, so that the running wind is directed to the headlamp. It is possible to suppress the generation of vortices due to direct contact with the lens surface.

Moreover, the wind that hits the side of the front grill where the airflow inlet is blocked flows outward in the vehicle width direction from the upwardly extending portion of the decorative member due to the structure in which the amount of protrusion of the upwardly extending portion of the decorative member is gradually reduced, and flows onto the bonnet. It is possible to merge the wind flowing toward the front grille, suppress the increase in wind pressure at the blocked portion of the side of the front grille, and improve the aerodynamic performance.

In addition, due to these effects, the Cd value (air drag coefficient) is reduced, and the aerodynamic performance can be improved.
Furthermore, deterioration of the aerodynamic performance of the blocked portion of the front grill can be suppressed, and the front grill design can be set large regardless of the actual size of the opening of the front grill.

Furthermore, since the top of the upwardly extending portion of the decorative member is shifted toward the front grille and formed in a tapered shape with a narrow front side of the vehicle, the following effects are obtained.
That is, the wind that hits the blocked portion of the side of the front grille is reliably separated by the tapered top portion of the upwardly extending portion of the decorative member, and the separated wind is flowed outward in the vehicle width direction to the hood. It can be merged with the wind that flows upwards.

Further, since the top portion of the upper extension portion is formed to be biased toward the front grille side (that is, the vehicle width direction inner side), the light distribution line of the headlamp can be directed toward the vehicle center side.

In one embodiment of the present invention, the upper end of the upwardly extending portion of the decorative member is connected to a bumper face upper forming an upper frame of the front grille.
According to the above configuration, it is possible to form a continuous frame line around the front grille.

According to the present invention, the running wind is separated so that the running wind does not directly hit the lens surface of the headlamp, and the separated running wind is directed over the bonnet and hits the closed part on the side of the front grill. There is an effect that the wind is caused to flow outward in the vehicle width direction and join the wind flowing toward the bonnet, thereby improving the aerodynamic performance.

FIG. 1 is a perspective view showing the front structure of a vehicle according to the present invention as viewed from the front of the vehicle and from the outside in the vehicle width direction; Front view of Figure 1 Fig. 2 is a side view of the left side of the vehicle in Fig. 1; Enlarged cross-sectional view of the main part along line AA in FIG. Enlarged cross-sectional view of the main part along line BB in FIG. FIG. 2 is a partially enlarged perspective view showing the front structure of the vehicle as viewed from the front and below the vehicle; (a) is a cross-sectional view of an embodiment showing a running wind separation structure by a decorative member under a headlamp, and (b) is a cross-sectional view of a comparative example showing a running wind non-separation structure by a decorative member under a headlamp.

It separates the running wind so that it does not hit the lens surfaces of the headlights directly, and directs the separated running wind over the bonnet, while directing the wind that hits the blocked part on the side of the front grill in the vehicle width direction. In the front structure of the vehicle, a front bumper face and an upper central portion of the front bumper face are arranged for the purpose of improving the aerodynamic performance by flowing outward and joining the wind flowing toward the bonnet. a front grill in which a running wind inlet is formed; headlamps arranged such that their inner sides in the vehicle width direction are adjacent to the front grill and their lower ends are adjacent to the front bumper face; and the outer ends in the vehicle width direction of the front grill. a decorative member having an upwardly extending portion extending laterally from the vehicle width direction outer end toward a space between the front grille and the headlamp and extending laterally toward the lower edge of the headlamp. The front grille is provided with the airflow introduction port in its central portion, and has a structure in which the side portions of the airflow introduction port are closed by blocking portions. The upwardly extending portion of the decorative member protrudes forward from the lens surface of the lamp and the lower bumper face surface, and the amount of protrusion of the upwardly extending portion of the decorative member toward the front of the vehicle is set to decrease as it goes upward. A bumper face upper forming an upper frame of the front grille has a downwardly extending front end curved downward. A downwardly extending apex is formed at a position overlapping the upwardly extending portion of the decorative member in the vehicle width direction, and the upper end of the top of the upwardly extending portion It was realized by a configuration in which it is provided inward in the vehicle width direction from the downwardly extending apex portion.

(Example)
An embodiment of the invention will be described in detail below with reference to the drawings.
The drawings show the front structure of a vehicle, FIG. 1 is a perspective view showing the front structure of a vehicle according to the present invention as viewed from the front and outside in the vehicle width direction, FIG. 2 is a front view of FIG. 1, and FIG. is a left side view of the vehicle in FIG. 1, FIG. 4 is an enlarged cross-sectional view of the main part along line AA in FIG. 3, and FIG. 6 is a partially enlarged perspective view showing the front structure of the vehicle as viewed from the front and below the vehicle.

In the following embodiments, the front structure on the left side of the vehicle will be described, but the front structure on the right side of the vehicle is bilaterally symmetrical with that on the left side of the vehicle.
As shown in FIGS. 1 to 3, a front bumper 10 is provided to cover the front of the engine room, and the front bumper 10 is formed in a curved shape from the vehicle front surface toward the vehicle side surface.

The front bumper 10 has a front bumper face 11 and a bumper portion 12 positioned below the front bumper face 11. Both the front bumper face 11 and the bumper portion 12 extend from the vehicle front surface to the vehicle side surface. It is formed so as to curve toward it.

The front bumper face 11 has a front portion 11a located on the front surface of the vehicle and a side surface portion 11b located on the side surface of the vehicle. , and a side portion 12b located on the side of the vehicle.

As shown in FIGS. 1 to 3, a bonnet 13 is provided to cover the upper part of the engine room. As shown in FIGS. 4 and 5, the bonnet 13 is formed by integrally forming a bonnet outer panel 14 and a bonnet inner panel 15 by hemming. It is configured to be openable and closable as

As shown in FIGS. 1 to 3, a front fender panel 16 is provided to cover the sides of the engine room. The front fender panel 16 is a panel member positioned below the end of the bonnet 13 in the vehicle width direction and behind the rear end 11c of the side surface 11b of the front bumper face 11. As shown in FIG.

As shown in FIGS. 1 and 3, both the lower rear end of the side portion 11b of the front bumper face 11 and the lower portion of the front fender panel 16 form a front wheel arch 17. A wheel house 19 (more specifically, a front wheel house) for the front wheels 18 is formed, and an over fender 20 is provided on the outer plate of the vehicle body along the front wheel arch 17 .

In this embodiment, the over fender 20 is divided into a front over fender 20a on the front bumper face 11 side and a rear over fender 20b on the front fender panel 16 side. is attached to the outer panel of the vehicle body, the mating surface 20c thereof coincides with the rear end 11c of the side surface portion 11b of the front bumper face 11 and is formed so as to be continuous in the vertical direction. The over fender 20 may have a non-divided structure in which the front over fender 20a and the rear over fender 20b are integrally formed instead of the front and rear divided structure.

As shown in FIGS. 1 and 2, a horizontally elongated front grille 21 is arranged at the upper center portion of the front portion 11a of the front bumper face 11 in the vehicle width direction. The front grille 21 is formed by combining a plurality of horizontal ribs 22 extending in the vehicle width direction and a plurality of vertical ribs 23 extending in the vertical direction to form a grid-like portion, and between the horizontal ribs 22 and the vertical ribs 23 (that is, between the horizontal ribs 22 and 23). , space of the lattice-like portion), an upper traveling wind introduction port 24 (a so-called opening for introducing outside air) is formed.

A heat exchanger (not shown) such as a radiator is arranged in the engine room. An opening is formed over substantially the same length in the vehicle width direction, and an opening is formed integrally with the front grill 21 at a vehicle width direction side portion of the front grill 21 where the heat exchanger is not present when viewed from the front of the vehicle. A closing portion 26 is formed by the closing member 25, and the closing portion 26 is configured to prevent overcooling of the engine and to suppress generation of a vortex in the engine room. An emblem 27 is attached to the upper center portion of the front grille 21 in the vehicle width direction.
That is, the front grille 21 is provided with an upper airflow introduction port 24 in its central portion, and the side portion of the upper airflow introduction port 24 is closed by a closing portion 26 .

Further, as shown in FIGS. 1 and 2, a lower running wind introduction port surrounded by a laterally long annular frame portion 28 is provided at the upper center in the vehicle width direction of the front portion 12a of the bumper portion 12 below the front bumper face 11. A plurality of vertical ribs 30 extending in the vertical direction are provided between the upper and lower frame portions 28 of the lower running wind introduction port 29, and the lower running wind A vehicle width direction side portion of the wind inlet 29 as a portion where a heat exchanger in the engine room does not exist in the front view of the vehicle is covered with a lid portion 31 integrated with or separate from the bumper portion 12, and this lid portion is provided. 31 is configured to prevent overcooling of the engine and to suppress the generation of swirl in the engine room. A license plate 32 (same as a license plate) is attached to the vehicle width direction central portion of the lower running wind introduction port 29 .
On the other hand, a headlamp 40 as a headlamp is provided outside the front grille 21 in the vehicle width direction and above the front bumper face 11 .

As shown in FIGS. 4 and 5, this headlamp 40 includes an outer lens 41 and a lamp housing 42. As shown in FIGS. is adjacent to the front grille 21, its lower end is adjacent to the front bumper face 11, and its upper end is adjacent to a bumper face upper 60, which will be described later. Specifically, the lower edge of the outer lens 41 is adjacent to the front bumper face 11, and the outer surface of the outer lens 41 as a lens surface is arranged from the vehicle front surface to the vehicle side surface. That is, the outer lens 41 has a front portion 41a whose outer surface is located on the front side of the vehicle, and a side portion 41b whose outer surface is located on the side surface of the vehicle.

As shown in FIGS. 1 and 2, a signature 50 as a decorative member is provided between the front bumper face 11 and the front grille 21 described above.
The signature 50 consists of a lower side portion 51 formed to extend in the vehicle width direction between the lower edge of the front grille 21 extending in the vehicle width direction and the front surface portion 11a of the front bumper face 11, and the lower side portion 51 extending in the vehicle width direction. a side portion 52 obliquely extending upward and outward in the vehicle width direction from the width direction end between the side edge of the front grille 21 in the vehicle width direction and the front surface portion 11a of the front bumper face 11; A side extending portion 53 extends outward in the vehicle width direction from the upper end of the side portion 52 corresponding to the outer end of the grille 21 in the vehicle width direction toward between the upper end of the front bumper face 11 and the lower edge of the headlamp 40 . and an upwardly extending portion 54 extending upward from the upper end of the side portion 52 toward between the outer upper portion of the front grille 21 in the vehicle width direction and the inner end portion of the headlamp 40 in the vehicle width direction.

As shown in FIGS. 1, 2, 3, 4, and 6, the lateral extension 53 of the signature 50 extends from the vehicle front surface to the vehicle side surface. A front surface portion 53a located between the front surface portion 11a of the bumper face 11 and the front surface portion 40a of the headlamp 40, and a side surface portion located between the side surface portion 11b of the front bumper face 11 and the side surface portion 40b of the headlamp 40. 53b and .

As shown in the cross-sectional view of FIG. 4, the front surface portion 53a of the side extension portion 53 of the signature 50, which is the decorative member for the lower edge of the headlamp 40, is the lens surface of the outer lens 41 of the headlamp 40 (the front surface of the outer lens 41). side outer surface) and a lower bumper face surface (refer to the front side outer surface of the front portion 11a of the front bumper face 11).

As shown in the figure, the front surface portion 53a of the side extension portion 53 has an upper surface portion 53c and a lower surface portion 53d, and the upper surface portion 53c and the lower surface portion 53d are tapered forward. A sharp front end portion 53e is formed by setting the angle formed by these both surfaces to 79 degrees to 83 degrees.

As shown in FIGS. 4 and 5, between the rear end of the front surface portion 53a and the outer lens 41 (see FIG. 4) in the lateral extension portion 53 extending from the vehicle front surface to the vehicle side surface, and within the vehicle width direction of the side surface portion 53b. A rear extension 55 is provided between the end and the outer lens 41 (see FIG. 5).
As shown in FIGS. 1, 2 and 3, a bumper face upper 60 is provided to form the upper frame of the front grille 21 described above.

The bumper face upper 60 includes a front surface portion 60a extending in the vehicle width direction along the upper edge of the front grille 21, and a vehicle side surface extending from the vehicle width direction end of the front surface portion 60a along the upper edge of the outer lens 41 of the headlamp 40. A side portion 60b that wraps around is integrally formed.

As shown in FIG. 4, the bumper face upper 60 is formed by integrally forming an upper surface portion 60c and a lower surface portion 60d. The lower surface portion 60d adjacent to the front surface portion 41a of the outer lens 41 of the headlamp 40 is formed substantially horizontally.
As shown in FIG. 3, the rear end 60e of the side surface portion 60b of the bumper face upper 60 coincides with the rear end 11c of the side surface portion 11b of the front bumper face 11 so as to be continuous in the vertical direction.

As shown in FIG. 4 which is a cross-sectional view of the headlamp 40 arrangement portion, the front end portion 60f of the bumper face upper 60 at the arrangement portion of the headlamp 40 is the lens surface of the outer lens 41 of the headlamp 40 (outer lens surface). 41), and the sharp front end portion 53e of the side extension portion 53 of the signature 50 further protrudes forward of the vehicle with respect to the front end portion 60f. In other words, the lens surface of the outer lens 41 of the headlamp 40 is arranged in a recessed position behind the vehicle with respect to the front end portion 60f of the bumper face upper 60 and the front sharpened portion 53e of the side extension portion 53 of the signature 50. ing.

FIG. 7(a) is a simplified view of the main part of FIG. 4, and FIG. 7(a) is a cross-sectional view of an embodiment showing a separation structure of running wind by the signature 50 under the headlamp 40. FIG. 7(b) is a cross-sectional view of a comparative example showing a non-separation structure of the signature 50 under the headlamp 40 against running wind. For convenience of illustration, parts (a) and (b) of FIG. 7 are given the same reference numerals.

In the embodiment shown in FIG. 7(a), a sharp front end portion 53e is provided in which the angle between the upper surface portion 53c and the lower surface portion 53d is set to 79 degrees to 83 degrees. In the comparative example, a non-sharp portion 53f is provided in which the front end of the upper surface portion 53c and the front end of the lower surface portion 53d are connected by a curved rounded portion.

In the comparative example shown in FIG. 7B, the non-sharpened portion 53f protrudes forward from the bumper face surface of the front surface portion 11a of the bumper face 11, and the tip of the non-sharp portion 53f is a curved rounded portion. Therefore, the traveling wind e11 is not separated by the non-pointed portion 53f, and flows rearward along the upper surface portion 53c of the side extension portion 53 of the signature 50 and the rear extension portion 55 behind it (see traveling wind e12). , this running wind e12 directly hits the outer lens 41 of the headlamp 40 to generate a large swirl.

On the other hand, in the embodiment shown in FIG. 7A, the running wind e1 is separated by the front end sharp portion 53e, and the separated running wind e2 passes through the upper surface portion 60c of the bumper face upper 60. It is possible to suppress the generation of a vortex caused by direct contact with the lens surface of the headlamp 40 (the outer surface of the outer lens 41) of the running wind e2 flowing toward the bonnet 13. In the embodiment shown in FIG. 7(a) as well, a vortex e3 is formed immediately downstream of the front tip portion 53e as shown in FIG. 7(b). is sufficiently small against the swirl caused by the running wind e12 directly hitting the lens surface of the headlamp 40. As shown in FIG.

Incidentally, as shown in FIG. 2, the upwardly extending portion 54 of the signature 50, which is a decorative member, has an inner wall 54a positioned inside in the vehicle width direction and an outer wall 54b positioned outside in the vehicle width direction. . In addition, as shown in FIGS. 4 and 6, the upward extension portion 54 is set so that the amount of protrusion toward the front of the vehicle decreases as it goes upward. That is, the amount of protrusion of the upper extension portion 54 toward the front of the vehicle is formed to be large at the lower portion and gradually decrease toward the upper portion.

Moreover, the front end portion of the upper extension portion 54 has a ridge line portion x1 as a peeling portion that directs the running wind that hits the blocking portion 26 in the direction of the running wind e2 that flows toward the bonnet 13 shown in FIG. is formed. The ridgeline portion x1 is formed at a portion where the inner wall 54a and the outer wall 54b intersect on the front side of the vehicle, and the ridgeline portion x1 is formed at the front end portion of the upper extension portion 54 along the longitudinal direction (vertical direction). It is a thing.

As a result, as shown in FIG. 6, the wind that hits the side portion of the front grille 21 where the upper airflow introduction port 24 is blocked by the blocking portion 26 gradually reduces the amount of protrusion of the upwardly extending portion 54 of the signature 50. As a result, the upper extension portion 54 flows outward in the vehicle width direction (see traveling wind e4), and the traveling wind e4 joins the traveling wind e2 flowing toward the bonnet 13, thereby closing the side portion of the front grille 21. It is intended to suppress the increase in wind pressure and improve aerodynamic performance.

Further, as shown in (a) of FIG. 7 , the running wind e1 is separated at the front end sharp portion 53e, and the separated running wind e2 is caused to flow over the hood 13, so that the lens surface of the headlamp 40 In addition to suppressing the generation of a vortex due to direct hit, the increase in wind pressure at the closed portion 26 on the side of the front grill 21 is suppressed, so these effects reduce the Cd value (air drag coefficient). , the aerodynamic performance is improved, the deterioration of the aerodynamic performance of the blocked portion of the side of the front grille 21 is suppressed, and the front grille design is set large regardless of the actual opening size of the front grille 21. It is what I did.

As shown in FIG. 1 , the upper end of the upwardly extending portion 54 of the signature 50 is connected to the lower surface portion 60 d of the bumper face upper 60 forming the upper frame of the front grill 21 . As a result, a continuous frame line is formed around the front grille 21 without interruption.

The ridgeline portion x1 of the upwardly extending portion 54 constitutes the top portion 54c of the upwardly extending portion 54 of the signature 50. The top portion 54c is deviated toward the front grille 21, that is, toward the vehicle width direction inward side, and It is formed in a tapered shape that is narrow in front of the vehicle (see FIGS. 1, 2, and 6).

As a result, the wind that hits the blocking portion 26 on the side of the front grill 21 is reliably separated by the tapered top portion 54c of the upwardly extending portion 54 of the signature 50, and the traveling wind e4 after this separation is directed in the vehicle width direction. The light distribution line of the headlamp 40 is formed by flowing outward and joining with the running wind e2 flowing toward the bonnet 13, and by forming the top portion 54c of the upper extension portion 54 to be biased toward the front grille 21 side. It is configured to distribute light toward the center of the vehicle.
In the drawings, arrow F indicates the front of the vehicle, arrow R indicates the rear of the vehicle, arrow IN indicates the inside in the vehicle width direction, arrow OUT indicates the outside in the vehicle width direction, and arrow UP indicates the top of the vehicle. indicate.

As described above, the vehicle front structure of the above-described embodiment is a vehicle front structure, and includes the front bumper face 11 and the running wind introduction port (upper running wind introduction port) disposed at the upper center of the front bumper face 11. 24) is formed, a headlamp 40 arranged so that the inner side in the vehicle width direction is adjacent to the front grille 21 and the lower end is adjacent to the front bumper face 11, and the front grille 21. An upward extension portion 54 extends laterally from the widthwise outer end toward the lower edge of the headlamp 40 and also extends upward from the vehicle widthwise outer end toward between the front grille 21 and the headlamp 40 . and a decorative member (see signature 50), and the front grill 21 is provided with the running wind introduction port (upper running wind introduction port 24) at the center thereof, and the running wind introduction port (upper running wind introduction port 24). The side portion of the introduction port 24) is closed, and the decorative member (signature 50) at the lower edge of the headlamp 40 is the lens surface of the headlamp 40 (see the outer surface of the outer lens 41) and the lower bumper face. The upward extension 54 of the decorative member (signature 50) protrudes forward from the surface (refer to the outer surface of the front surface portion 11a of the front bumper face 11). (See FIGS. 1, 4 and 6).

According to this configuration, the running wind is separated at the front end of the decorative member at the lower edge of the headlamp 40 projecting forward from the bumper face surface (see the side extension portion 53 of the signature 50), and the separated wind (running The wind e2) is caused to flow over the bonnet 13, and it is possible to suppress the generation of a vortex caused by the running wind e2 directly hitting the lens surface of the headlamp 40.

Moreover, the wind that hits the portion (see the blocking portion 26) that blocks the running wind introduction port (upper running wind introduction port 24) on the side of the front grille 21 causes the upward extension portion 54 of the decorative member (signature 50) to protrude. Due to the gradual decrease structure, the air flows from the upper extension portion 54 to the outside in the vehicle width direction (see running wind e4), and can be joined with the wind flowing toward the bonnet 13 (running wind e2). It is possible to suppress an increase in the wind pressure at the closed portion (closed portion 26), thereby improving the aerodynamic performance.
In addition, due to these effects, the Cd value (coefficient of aerodynamic efficiency) is reduced, and the aerodynamic performance can be improved.

Further, deterioration of the aerodynamic performance of the blocked portion on the side of the front grille 21 can be suppressed, and the front grille design can be set large regardless of the actual opening size of the front grille 21. - 特許庁

In one embodiment of the present invention, the upper end of the upwardly extending portion 54 of the decorative member (signature 50) is connected to the bumper face upper 60 forming the upper frame of the front grille 21 ( See Figure 1).
According to this configuration, a continuous frame line can be formed around the front grill 21 without discontinuity.

Further, in one embodiment of the present invention, the top portion 54c of the upwardly extending portion 54 of the decorative member (signature 50) is deviated toward the front grille 21 and formed into a tapered shape that is narrow in front of the vehicle. (See FIG. 6).
According to this configuration, the wind hitting the blocked portion (blocked portion 26) on the side of the front grille 21 is reliably separated by the tapered top portion 54c of the upward extension portion 54 of the decorative member (signature 50). , the wind (driving wind e4) after the separation can be caused to flow outward in the vehicle width direction to join with the wind (driving wind e2) flowing toward the bonnet 13 .

Further, since the top portion 54c of the upper extension portion 54 is formed to be biased toward the front grille 21 side (that is, the vehicle width direction inner side), the light distribution line of the headlamp 40 can be directed toward the vehicle center side. can.

In correspondence with the configuration of the present invention and the above-described embodiments,
The running wind introduction port of the present invention corresponds to the upper running wind introduction port 24 of the embodiment,
and so on,
Although the decorative member corresponds to the signature 50,
The present invention is not limited to the configurations of the above embodiments.

INDUSTRIAL APPLICABILITY As described above, the present invention includes a front bumper face, a front grill disposed in the upper center portion of the front bumper face and formed with a running wind introduction port, the front grill on the inner side in the vehicle width direction, and the lower end on the front grill. and headlamps disposed adjacent to each front bumper face.

11 --- Front bumper face 21 --- Front grille 24 --- Upper running wind introduction port (running wind introduction port)
26... Closing part 40... Head lamp 50... Signature (decorative member)
54...Upward extension part 54c...Top part 60...Bumper face upper 60f...Front end part

Claims (4)

A vehicle front structure,
front bumper face,
a front grill disposed at the upper center of the front bumper face and formed with a running wind introduction port;
a headlamp having a vehicle width direction inner side adjacent to the front grill and a lower end adjacent to the front bumper face;
An upward extension extending laterally from the vehicle width direction outer end of the front grill toward the lower edge of the headlamp and upwardly extending from the vehicle width direction outer end toward between the front grill and the headlamp. A decorative member having
The front grill has a structure in which the running wind introduction port is provided in the central portion thereof, and the side portions of the running wind introduction port are blocked by blocking portions,
The decorative member at the lower edge of the headlamp protrudes forward from the lens surface of the headlamp and the lower bumper face surface,
The amount of protrusion of the upwardly extending portion of the decorative member toward the front of the vehicle is set to decrease toward the top,
the apex of the upwardly extending portion of the decorative member is deviated toward the front grille and formed in a tapered shape with a narrow front side of the vehicle;
The bumper face upper, which forms the upper frame of the front grille, has a downwardly extending portion whose front end portion is curved downward. , a downwardly extending apex is formed, and
In the vehicle front structure, an upper end portion of the top portion of the upwardly extending portion is provided inward in the vehicle width direction from the downwardly extending apex portion. A vehicle front structure,
front bumper face,
a front grill disposed at the upper center of the front bumper face and formed with a running wind introduction port;
a headlamp having a vehicle width direction inner side adjacent to the front grill and a lower end adjacent to the front bumper face;
An upward extension extending laterally from the vehicle width direction outer end of the front grill toward the lower edge of the headlamp and upwardly extending from the vehicle width direction outer end toward between the front grill and the headlamp. A decorative member having
The front grill has a structure in which the running wind introduction port is provided in the central portion thereof, and the side portions of the running wind introduction port are blocked by blocking portions,
The decorative member at the lower edge of the headlamp protrudes forward from the lens surface of the headlamp and the lower bumper face surface,
The amount of protrusion of the upwardly extending portion of the decorative member toward the front of the vehicle is set to decrease toward the top,
the apex of the upwardly extending portion of the decorative member is deviated toward the front grille and formed in a tapered shape with a narrow front side of the vehicle;
The lower end portion of the top portion of the upper extension portion of the decorative member is positioned in front of the vehicle or substantially at the same position in the vehicle longitudinal direction with respect to the front end portion of the bumper face upper that forms the upper frame of the front grille at the same vehicle width position. provided in
A front portion structure of a vehicle, wherein an upper end portion of the top portion of the upwardly extending portion of the decorative member is provided so as to be positioned rearward of the vehicle at the same vehicle width position with respect to the front end portion of the bumper face upper. A vehicle front structure,
front bumper face,
a front grill disposed at the upper center of the front bumper face and formed with a running wind introduction port;
a headlamp having a vehicle width direction inner side adjacent to the front grill and a lower end adjacent to the front bumper face;
An upward extension extending laterally from the vehicle width direction outer end of the front grill toward the lower edge of the headlamp and upwardly extending from the vehicle width direction outer end toward between the front grill and the headlamp. A decorative member having
The front grill has a structure in which the running wind introduction port is provided in the central portion thereof, and the side portions of the running wind introduction port are blocked by blocking portions,
The decorative member at the lower edge of the headlamp protrudes forward from the lens surface of the headlamp and the lower bumper face surface,
The amount of protrusion of the upwardly extending portion of the decorative member toward the front of the vehicle is set to decrease toward the top,
the apex of the upwardly extending portion of the decorative member is deviated toward the front grille and formed in a tapered shape with a narrow front side of the vehicle;
The upward extension includes an inner wall located inside in the vehicle width direction and an outer wall located outside in the vehicle width direction,
The vehicle front structure, wherein the top portion of the portion where the inner wall and the outer wall intersect on the vehicle front side is formed by a ridge portion that separates traveling wind that hits the blocking portion outward in the vehicle width direction. The vehicle front structure according to any one of claims 1 to 3, wherein the upper end of the upwardly extending portion of the decorative member is connected to a bumper face upper forming an upper frame of the front grille.

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