JPH0241988A - Rear spoiler in automobile - Google Patents

Abstract

PURPOSE:To improve the stability of a car body by elastically supporting the front portion of a wing body fitted to the rear of the car body by an elastic body such as a spring or the like. CONSTITUTION:A support leg 1 is fixed to the upper surface of a truck lid (a). A wing body is formed on a flat plate, the rear portion thereof is supported on the support leg 1 in such a manner as to freely turn and the front portion thereof is supported by a spring 3 in such a manner as to freely oscillate vertically. When an automobile runs at high speed, the wind pressure applied to the wing body 2 is increased, whereby the spring 3 is bent in such a manner as to increase the forward inclination of the wing body.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates primarily to a rear spoiler for ordinary passenger cars capable of traveling at high speeds.

Prior art and its problems A rear spoiler in a conventional automobile is fixedly provided at the rear of the vehicle body. Therefore, even during normal driving, the vehicle suffers from unnecessary wind resistance, resulting in a loss of fuel efficiency.

In addition, some special automobiles such as racing cars are equipped with an adjustment mechanism that allows the angle of the wing body to be adjusted by hydraulic pressure, but this was considered inappropriate for -a automobiles due to the high cost.

Means for Solving the Problems The present invention aims to eliminate the drawbacks of the above-mentioned prior art and provide a rear spoiler that can always run efficiently by utilizing air resistance, even in ordinary passenger cars that can run at high speeds. It is something.

That is, the present invention provides a structure in which, in a motor vehicle capable of running at high speed, a wing body having a front part inclined downwardly is rotatably supported on support legs fixedly provided at the rear of the vehicle body, and The gist of this invention is the structure of a rear spoiler for an automobile, characterized in that the front part of the body is elastically supported by an elastic body such as a spring.

Operation This invention is constructed as described above, and when traveling at high speed,
The wing body tilts forward in response to wind resistance, compressing the rear of the vehicle and improving stability.

When the wind pressure weakens as the speed decreases, the elastic body restores itself and the front of the wing rises to a horizontal state, where it is no longer subject to wind resistance. This makes it possible to prevent loss of fuel efficiency during normal driving.9 Example of the Present Invention To explain this with reference to the illustrated embodiment, (1) is the degree of support, which is fixedly provided on the upper surface of the trunk lid +a+. (The wing body 21 is usually formed into an elongated flat plate, and the rear part is rotatably supported by a shaft with respect to the above-mentioned support level (1), and the front part is vertically supported by a spring (3). It is elastically supported so that it can swing freely.

This spring (3) is attached to the wing body (
When the wind pressure on 2) increases, the forward inclination increases, and when the speed decreases, the support level (1) increases so that it returns to the horizontal state.
) and the wing body (2).

In addition, by absorbing the recoil when the spring (3) expands and contracts,
It is recommended to provide a damper (in order to smooth the vertical movement of 4Ctz).

To explain the operation of the above embodiment, when the car reaches high speed, as shown in Fig. 3, the wing body (2) tilts forward due to wind pressure, and the rear part of the car body is pressed against the ground surface, so that the car can run efficiently and stably. When the speed becomes low, as shown in Fig. 4, the wing body (2) returns to a horizontal state and wind pressure is no longer applied, allowing the vehicle to travel without losing fuel efficiency.

Effects of the Invention As described above, according to the present invention, since the blade body is tilted at an arbitrary angle depending on the traveling speed of the vehicle, there is an effect that even an ordinary passenger car capable of traveling at high speed can always travel efficiently.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the state in which the device is mounted on an automobile, FIG. 2 is a vertical side view, and FIGS. 3 and 4 are views showing the operating state. The symbols in the figure are explained as follows. il+ is the degree of support (2 is the wing body [31 is the spring (4) is the damper Fig. 3 2 [2I Cυ degree of support ■ Wing body ゑ Trunk lid

Claims (1)

[Claims] In a car that can run at high speeds, a wing body whose front part is tilted downward is rotatably supported on support legs fixed to the rear part of the car body, and the front part of the wing body is supported by a spring. A rear spoiler for an automobile, characterized in that it is elastically supported by an elastic body such as.