JPH06312673A - Wind noise preventing mechanism and preventing method in outer mirror - Google Patents

Abstract

PURPOSE:To effectively prevent or reduce the occurrence of a wind noise due to an outer mirror in a vehicle having an outer mirror at the side of a car body. CONSTITUTION:A wind noise preventing mechanism includes a guiding projection streak 12 which is extended outward in the width direction from the inside part of the front surface of the car body toward an outer mirror 11, and adapted to deflect an air current flowing along the front surface of the car body during running and guide the same to the front of the outer mirror.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind noise preventing mechanism and a wind noise preventing method for an outer mirror.

[0002]

2. Description of the Related Art Rearview mirrors are provided to check the rear and side conditions of a vehicle.

The rear-view mirror provides the driver with external information on the rear side and the lateral side without turning to the back, and greatly contributes to the safety of running.

The rearview mirror is attached to the outside of the automobile, mainly for checking the side and rear of the vehicle, and the inner mirror, which is attached to the inside of the automobile, for checking the rear condition mainly through the rear window. There is.

The outer mirror is classified into a fender mirror and a door mirror depending on the mounting location.
In recent years, door mirrors that are attached to the outside of the front part of the front door window are often used.

The fender mirror is provided so as to project obliquely upward and laterally from the outer surface of the upper edge of the front fender. On the other hand, the door mirror is provided so as to project outward in the vehicle width direction from a corner between the lower edge of the front door window opening and the front frame. Since these outer mirrors are provided so as to project from the outer surface of the vehicle body, the airflow during traveling directly collides with the vehicle, which not only deteriorates the aerodynamic characteristics of the vehicle but also causes wind noise.

In particular, in the front portion of the front door where the above-mentioned door mirror is provided, the air flow moving along the windshield and the air flow moving along the side part of the vehicle body collide with each other in a complicated manner, and the door mirror moves in the vehicle width direction. Since it is provided so as to project outward in the direction, air vortices are likely to occur and wind noise often occurs.

Conventionally, in order to prevent or reduce the wind noise, the sealing property of the outer mirror mounting portion is improved to enhance the smoothness of the outer surface of the vehicle body so that the air flow is not disturbed as much as possible. Measures have been taken such as providing the vehicle as far away from the vehicle body surface as possible and setting it in a streamlined shape with less resistance.

However, in order to improve the sealing property of the mounting portion, it is necessary to improve the mounting accuracy. In particular, in a door mirror, it is necessary to improve the accuracy of standing the door. In addition, the sealing property in the vicinity must be improved by using a sealing material such as a weather strip. For this reason, there arises a problem that the manufacturing cost is significantly increased.

On the other hand, it is conceivable to set the outer mirror as far as possible from the vehicle body and set it in a shape with low resistance. However, not only is there a great deal of restriction on the design, but also a safety problem arises, and a sufficient effect is expected. I can't.

In order to solve the above-mentioned inconvenience, for example, as disclosed in Japanese Utility Model Laid-Open No. 61-94484, a deflector is provided on the outer surface of the vehicle body in front of the door mirror to try to collide with the front surface of the door mirror. An invention has been proposed in which airflow is rectified to prevent wind noise.

[0012]

In the invention described in the above publication, a projecting deflector is provided on the vehicle body surface in front of the door mirror so that the air flow flowing along the vehicle body surface does not directly hit the door mirror. Is configured as follows.

However, the effect cannot be exhibited when the door mirror is provided away from the surface of the vehicle body or when the deflector cannot be mounted in front of the door mirror in a one-box car or the like.

Further, since it is intended to control the direction of the air flow which is about to directly collide with the front surface of the door mirror, the effect may not be expected depending on the speed of the vehicle. Further, when the vehicle travels in a windy state, the direction of the air flow that is about to collide with the front surface of the door mirror is different, and a sufficient effect cannot be expected.

The present invention has been conceived under the above circumstances, has solved the above-mentioned conventional problems, and in a vehicle provided with an outer mirror on the side of the vehicle body, a wind noise caused by the outer mirror is generated. An object of the present invention is to provide a wind noise prevention mechanism and a prevention method in an outer mirror that can effectively prevent or reduce the occurrence of the noise.

[0016]

In order to solve the above problems, the present invention takes the following technical means.

That is, the invention described in claim 1 of the present application is, in a vehicle having an outer mirror on a side portion of the vehicle body, extends outward in the vehicle width direction from the inner portion of the front surface of the vehicle body toward the outer mirror, and along the front surface of the vehicle body during traveling It is characterized in that it is provided with a guide ridge for deflecting an air flow flowing therethrough outward in the vehicle width direction and guiding the air flow forward of the outer mirror.

The invention described in claim 2 of the present application is
In the outer mirror that prevents the generation of wind noise of the outer mirror by deflecting the airflow flowing along the front surface of the vehicle body in the vehicle width direction outward when the vehicle is traveling and guiding it toward the front of the outer mirror provided on the side portion of the vehicle body. The present invention relates to a wind noise prevention method.

[0019]

The windshield noise prevention mechanism for the outer mirror according to the present invention extends outward in the vehicle width direction from the inner portion of the front surface of the vehicle body toward the outer mirror, and allows the airflow flowing along the front surface of the vehicle body during traveling to the vehicle width. It is configured to include a guide ridge that deflects outward in the direction and guides the front of the outer mirror.

Since the guide ridge is formed so as to extend outward in the vehicle width direction from the inner portion of the front surface of the vehicle body toward the outer mirror, the air flow along the front surface of the vehicle body which is generated as the vehicle travels is efficiently formed. It can be deflected outward in the vehicle width direction.

By guiding the air flow in front of the outer mirror, it is possible to form a stable air flow outward in the vehicle width direction in front of the outer mirror.
Therefore, the air flow that flows rearward along the vehicle body side portion is deflected by the air flow that is directed outward in the vehicle width direction, and does not directly collide with the outer mirror. Therefore, the turbulence of the air flow near the outer mirror is reduced, and it is possible to prevent or reduce the generation of wind noise.

In particular, in the front part of the window opening where the door mirror is provided, the air flow flowing rearward or upward along the bonnet or the windshield and the airflow flowing rearward along the side part of the vehicle complexly collide with each other. Therefore, by attaching the door mirror, turbulence easily occurs in the air flow passing through this portion.

According to the present invention, an air flow can be generated outward in the vehicle width direction in front of the door mirror, so that the air flow near the door mirror can be stabilized and the air flow can be directly applied to the front surface of the door mirror. The airflow that is about to collide is deflected outward in the vehicle width direction by the airflow traveling outward in the vehicle width direction, so that the airflow is not directly applied to the door mirror from the front in the traveling direction.

Therefore, it is possible to prevent a complicated air flow from being formed around the door mirror, and to effectively prevent or reduce the generation of wind noise of the door mirror.

Further, in the wind noise reducing mechanism and the wind noise reducing method according to the present invention, the air flow in the vicinity of the outer mirror is adjusted by utilizing the air flow flowing along the front surface of the vehicle body. Thus, it is possible to stably form the above-described airflow that is directed outward in the vehicle width direction. Therefore, a stable effect can be expected regardless of the traveling speed and traveling direction of the vehicle, and
Less susceptible to wind and other factors.

Moreover, since the airflow that is about to hit the outer mirror is not directly adjusted in front of the outer mirror, for example, in a one-box car or the like, the door mirror is provided at substantially the same position as the front surface of the vehicle body. Even in this case, it is possible to prevent the generation of wind noise by generating an air flow toward the door mirror.

Moreover, in the present invention, the wind noise can be prevented or reduced only by providing the guide ridges, so that the manufacturing cost does not rise.

[0028]

Description of Embodiments Embodiments according to the present invention will be specifically described below with reference to the drawings.

1 to 4 show a first embodiment according to the present invention.

In the first embodiment, the present invention is applied to a so-called two-box or three-box type automobile door mirror having an engine room in the front of the vehicle body and a hood covering the upper part of the engine room. .

As shown in FIG. 1, at the front of the vehicle,
The front fender 1 provided on the side portion and the hood 2 provided on the upper portion cover the outside of the engine room.

A side member 4 having a door opening 3 is provided behind the front fender 1, and a door 5 is pivotally mounted at the front edge of the door opening 3 so as to be openable and closable.

A window glass 9 is fitted into a front window opening 8 surrounded by a cowl panel 14 provided at the rear of the hood 2, a front body pillar 6 provided at upper fronts of both side members 4, and a roof panel 7. .

A door mirror 11 is integrally formed to project outward in the vehicle width direction from a door mirror mounting base 10 provided at a corner between the lower edge 5a of the window opening of the front door 5 and the front edge 5b of the window frame. .

Now, in this embodiment, the hood 2 is used.
Guide ridges 12 are provided on both sides of the rear edge portion so as to protrude from the outer surface of the hood at a predetermined height and extend along the rear edge portion.

As shown in FIGS. 1 to 3, the guide ridge 12 extends outward from the inner side along the rear edge of the hood 2 in front of the lower edge of the windshield 9. Is provided.

The guide ridge 12 according to this embodiment is shown in FIG.
As shown in FIG. 4, a strip-shaped member made of resin or the like is elastically fitted to the rear edge of the hood 2, and the front surface of the guide ridge 12 is outside the hood 2. It is configured to form a right angle to the surface.

When the vehicle runs, as shown in FIGS. 1 to 3, along the hood 2 and the front window 9,
An air flow is generated that moves toward the rear or the top of the vehicle.

In this embodiment, since the guide ridges 12 are provided on both sides of the rear edge of the hood 2, the air flow flowing from the front of the vehicle body to the rear along the upper surface of the hood 2 is the guide ridges. The vehicle is guided by 12 and is deflected outward in the vehicle width direction.

Since the deflected airflow crosses the front of the door mirror 11 and travels outward in the vehicle width direction, as shown in FIG. 3, the air that is about to collide with the front surface of the door mirror 11 directly. The flow is forcibly deflected outward in the vehicle width direction by the deflected air flow.
For this reason, the airflow flowing along the vehicle body side portion to the door mirror 11 does not directly hit the door mirror, and the flow in the vicinity of the door mirror can be stabilized.

As a result, it is possible to effectively prevent or reduce the generation of wind noise due to the provision of the door mirror 11.

Further, in the wind noise reducing mechanism according to the present embodiment, the air flow flowing toward the rear of the vehicle along the surface of the hood 2 is forcibly deflected by the guide ridge 12, and is forward of the door mirror 11. Since it guides, the airflow can be stably formed by the traveling of the vehicle. Therefore, the effect can be expected regardless of the traveling speed or traveling direction of the vehicle, and
Less susceptible to wind and other factors.

Moreover, the wind noise reducing mechanism according to the present embodiment can be constructed by simply fitting the guide ridge 12 to the rear edge of the hood 2, so that the vehicle and the door mirror 11 can be constructed.
There is no need to change the shape of, and a large effect can be obtained at low cost.

The embodiment shown in FIGS. 5 and 6 is one in which the present invention is applied to a so-called one-box car.

Since the one-box car does not have the hood as shown in the first embodiment,
The guide ridge cannot be installed in front of the door mirror 11.

In this embodiment, the front panel 13 below the windshield 9 is provided with a pair of guide ridges 12a in a reverse inverted V shape when viewed from the front so that an air flow that moves upward along the front surface of the vehicle body is provided. It is configured to be deflected outward in the vehicle width direction and guided in front of the door mirror 11.

As shown in FIG. 5, the guide ridge 12a according to this embodiment has a substantially triangular cross section, and is attached to the front panel 13 of the vehicle body by adhesion or the like.

In the wind noise reducing mechanism having the above structure,
The airflow that is in contact with the front surface of the vehicle body or that flows upward along the front surface is deflected outward in the vehicle width direction so as to be guided in front of the door mirror 11. Therefore, it is possible to expect a sufficient effect without directly providing the guide protrusion 12a in front of the door mirror 11. Moreover, since the guide ridges 12a are set at symmetrical positions on the front surface of the vehicle body, the appearance of the front surface of the vehicle body hardly deteriorates.

The present invention is not limited to the above embodiments. In the embodiment, the invention of the present application is applied to the door mirror 11, but the invention of the present application can also be applied to a fender mirror projecting obliquely laterally upward from the outer surface of the upper edge of the front fender. Further, the present invention can be applied to the outer mirror attached to the front body pillar.

Further, in the first embodiment, the guide ridge 12 is provided by being fitted to the rear edge of the hood 2, but the front window molding 15 for sealing the lower edge of the front window against the cowl panel. It is also possible to form the guide ridge by molding the above into a fin shape protruding from the surface of the windshield.

Further, the rear edge portion of the hood may be bent upward so that the guide ridge is integrally formed with the hood. Further, the guide ridge can be formed by using a wiper garnish of a wiper provided below the front window.

Further, in the second embodiment, the pair of guide ridges 12a are provided in the inverted V shape, but the arrangement position and shape of the guide ridges are changed depending on the shape or the mounting position of the door mirror. You can also

Furthermore, the cross-sectional shape of the guide ridges is not limited to the embodiment, and it may be formed in other cross-sectional shapes such as a semi-circular shape.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment according to the present invention.

FIG. 2 is a front view of the vehicle according to FIG.

FIG. 3 is a plan view of the vehicle according to FIG.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a side view showing a second embodiment of the present invention.

FIG. 6 is a front view of the second embodiment shown in FIG.

[Explanation of symbols]

 11 Outer mirror (door mirror) 12 Guide ridge

Claims (2)

[Claims] 1. A vehicle having an outer mirror on a side portion of a vehicle body, which extends outward in a vehicle width direction from an inner portion of a front surface of the vehicle body toward the outer mirror, and an airflow flowing along the front surface of the vehicle body while traveling is outward in the vehicle width direction. A wind noise suppressing mechanism for an outer mirror, comprising a guide ridge for deflecting and guiding the front of the outer mirror. 2. A wind noise of the outer mirror is generated by deflecting an air flow flowing along the front surface of the vehicle body in a vehicle width direction outward while the vehicle is traveling and guiding the air flow forward of an outer mirror provided on a side portion of the vehicle body. Method for preventing wind noise in outer mirrors to prevent wind.