JPS6328713Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air dam skirt installed at the lower part of the front panel of a vehicle body, and more specifically, to an air dam skirt that has been improved to improve its functionality.

In recent years, some vehicles have been equipped with an air dam skirt at the bottom of the front panel to restrict the flow of air flowing under the vehicle body when the vehicle is running at high speeds, thereby improving aerodynamic characteristics when driving at high speeds.

By the way, since the air dam skirt is subjected to the wind pressure of the traveling airflow, if it is made of a hard material, the straight-line stability of the vehicle during high-speed running may deteriorate. Furthermore, since the air dam skirt is located close to the road surface, it is easily damaged by contact with the road surface. Therefore, as seen in Japanese Utility Model Application Publication No. 57-128571, for example, a structure in which the air dam skirt can be bent backwards has been proposed, but in this case, the air dam skirt is a thin structure that is integrally formed with the skin of the bumper. However, there is a risk that the air dam skirt may not be able to fully demonstrate its original function, and since it is structurally weak, it is easily damaged.

The present invention has been developed to solve the above-mentioned disadvantages.The air dam skirt provides straight-line stability when the vehicle is running at high speed without impairing the original function of the air dam skirt, and can effectively prevent damage from contact with the road surface. The purpose is to provide

For this purpose, the present invention consists of an air dam skirt consisting of an upper structure made of hard urethane fixed to the front panel side and a lower structure made of soft vinyl chloride connected to the lower part of this. do.

The present invention will be explained below based on an embodiment shown in the drawings.

A front bumper 2 and its bumper side 3 are arranged on the front panel 1 of the vehicle body shown in FIG.
Further, a front skirt 4 is arranged below these to provide a rectifying effect to the radiator grille, and these are attached to the front panel 1 by appropriate fixing means (not shown), such as bolts and nuts.

Here, below the front skirt 4, an air dam skirt 5 having a two-tiered upper and lower structure is arranged. This air dam skirt 5 is composed of an upper structure 6 made of hard urethane and a lower structure 7 made of soft vinyl chloride. These include a mounting flange 6a bent rearward in an L-shape at the lower end of the upper structure 6, and a mounting flange 7a bent rearward in a shape along the mounting flange 6a at the upper end of the lower structure 7. Align both mounting flanges 6a,
7a are connected vertically by fastening with bolts 8 and nuts 9. Note that the insertion holes 10 for the bolts 8 bored in the mounting flanges 6a and 7a are as follows:
The air dam skirt 5 is formed as a long hole along the longitudinal direction, and is designed to absorb the difference in deformation due to thermal expansion caused by the difference in the materials of the upper and lower structures 6 and 7.
The air dam skirt 5 having such a two-tier upper and lower structure has a mounting flange 6b bent rearward approximately horizontally at the upper end of the upper structure 6, and is attached to the front skirt 4 by bolts and nuts (not shown).
is fixed at the bottom end of the

In the above configuration, the upper structure 6 of the air dam skirt 5 is made of hard urethane and is rigid, and is fixed to the front skirt 4, which is a member on the side of the front panel 1 of the vehicle body, so that when the vehicle is running at high speed, strong running winds are prevented. It does not deform easily even if it gets hit. In addition, since the lower structure 7 of the air dam skirt 5 is made of soft vinyl chloride and is flexible, both ends thereof are elastically deformed rearward by wind pressure when the vehicle is running at high speed, promoting the discharge of the running air flow. become. Therefore, when the vehicle is running at high speed, the air dam skirt 5 restricts the inflow of the running wind under the vehicle body, improving not only the aerodynamic characteristics but also the straight-line stability of the vehicle. Also, in the case of road surface,
Since the flexible lower structure 7 is on the road surface side, the air dam skirt 5 is not damaged.

As explained above, according to the present invention, the air dam skirt has an upper structure made of hard urethane that is fixed to the front panel of the vehicle body, so its rigidity allows it to easily deform even when the vehicle is hit by strong winds while driving at high speeds. The air dam skirt restricts the flow of wind from flowing under the vehicle body, allowing the air dam skirt to perform its original function. Furthermore, since the lower structure of the air dam skirt is made of soft vinyl chloride and is flexible, both left and right ends of the air dam skirt elastically deform backwards due to wind pressure when the vehicle is running at high speed, promoting the discharge of airflow from the vehicle. Improves straight-line stability. Furthermore, even if the vehicle hits the road, the flexibility of the lower structure prevents the air dam skirt from being damaged.

[Brief explanation of the drawing]

FIG. 1 is a front view of a vehicle showing an embodiment of the present invention, and FIG. 2 is a cross-sectional perspective view taken along the - line in FIG. 1. 1... Front panel, 2... Front bumper, 3... Bumper side, 4... Front skirt, 5... Air dam skirt, 6... Upper structure, 6a, 6b... Mounting flange, 7... Lower structure Body, 7a...Mounting flange, 8...Bolt, 9
...Natsuto, 10...insertion hole.

Claims (1)

[Scope of utility model registration request] The air dam skirt is installed at the bottom of the front panel of the vehicle.The air dam skirt consists of an upper structure made of hard urethane that is fixed to the front panel side, and a lower structure made of soft vinyl chloride that is connected to the bottom of this. An air dam skirt characterized by its composition.