JPH03281484A - Rear spoiler device - Google Patents

Abstract

PURPOSE:To enhance the rectilinearity of an automobile by providing a rear spoiler device with a center base, laterally extending wings and elevating mechanisms for elevating the outer end parts of the wings so as to equally distribute component forces on both sides. CONSTITUTION:A rear spoiler device 10 is secured to a vehicle body, by means of a center base 11, wings 20 extend on both sides and the outer end parts 25 of the wings are elevated by means of elevating mechanisms 30. When the wings 20 is substantially horizontal, generated component forces are only in the vertical direction, and accordingly, the ground contact characteristic is enhanced. The outer end parts 25 of both wings 20 are elevated by the elevating mechanisms 30 and are held at a height different from that of the inner end parts 21 thereof, lateral component forces are generated so as to enhance the rectilinearity by balancing the component forces.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rear spoiler device that is attached to the rear end of an automobile to straighten air.

``Prior Art'' Some conventional rear spoiler devices are mounted, for example, on the rear end of an automobile, and have movable wings to change the angle of attack of the wings depending on the driving conditions of the automobile.

``Problem to be solved by the invention'' However, such a conventional rear spoiler device can only change the angle of attack of the wing, so although it is effective in stabilizing the grounding of the car, In this case, either no component force is generated, or even if it is generated, it is only a small amount, and it is not directly effective for straight-line stability, and the problem was whether to develop a rear spoiler device that works to make the car go straight.

The present invention is applicable to such conventional HI! A rear spoiler that generates forces in both lateral directions on the wing, and uses these forces to suppress the vehicle's lateral movement and improve straight-line performance, improving driving stability. The purpose is to provide equipment.

"Means for Solving the Problems" The gist of the present invention to achieve the above object is to provide a rear spoiler device that is attached to the rear end of an automobile to rectify air.

a central base fixed to the center of the vehicle body; a wing whose inner end is pivoted to the center base and extends laterally; and a space between the outer end of the wing and the side of the vehicle body. The present invention relates to a rear spoiler device which is attached to the rear spoiler device and includes an elevating mechanism that moves and holds the outer end portion up and down.

``Operation'' When a car is running, the airflow flowing along the car body hits the wing of the rear spoiler device at the rear end of the car body and is rectified.

If the wings extending laterally from the central base are approximately horizontal when viewed from the front, the component force generated on the wings when rectifying the flow is only in the vertical direction.

This component of force contributes to improving the grounding performance of the vehicle.

When it is desired to improve the straightness of the vehicle, the outer ends of both wings are raised or lowered and held using a lifting mechanism.

Since the heights of the inner and outer ends of both wings are different, the downward force generated perpendicularly to each wing when rectifying the flow is the holding force that presses the vehicle body downward and the lateral force acting on the side of the vehicle body. We parted ways.

The holding force improves the grounding performance of the car body, and the lateral force works in opposite directions on each wing distributed from the center of the car body, and by balancing the lateral force in the opposite direction, the lateral movement of the car body is suppressed, and the car Improving straight-line performance.

"Example" Various embodiments of the present invention will be described below based on the five drawings.

1 to 3 show a first embodiment of the present invention.

The rear spoiler device io is attached to the rear end of a vehicle body 1 to straighten air.

A central base 11 is fixedly installed in the center of the vehicle body l.
Wings 20 and 20 extend from the vehicle body 1 to both sides, and a lifting mechanism 30 is installed on the side of the vehicle body 1.

At the top of the central base 11 is a nearly horizontal wing support section 12.
Fitting notches 1 are provided on both sides of the wing support portion 12.
3.13 is formed.

A fitting projection 22 of an inner end portion 21 of the wing 20 is fitted into a fitting notch 13 of a wing support portion 12 of the central base 11 and is pivotally supported by a pivot pin 23 .

The wing 20.20 has a substantially horizontal flap portion 24.24.
extend laterally, and the outer ends 25 are bent downward at the distal ends.

The elevating mechanism 30 is attached to the side of the vehicle body 1 corresponding to the outer end 25 of the wing 20, and moves and holds the outer end 25 up and down.

The elevating mechanism 30 includes a drive motor 32 supported by a housing 31 fixed to the vehicle body 1, a gear member 33 pivotally supported by the housing 31, and an arcuate rack 34 fixed to the outer end 25 of the wing 20. 0 arc rack 3 consisting of ゜34
The arc of 4.34 is centered on the pivot pin 23 of the inner end 21 of the wing 20.

The drive motor 32 has a worm 32a fixedly attached to the drive shaft. The gear member 33 includes a worm wheel 33a that meshes with the worm 32a, and a drive gear 33b that meshes with the arcuate racks 34 and 34.

33b is fixed to the pivot 33c.

Next, the effect will be explained.

In the elevating mechanism 30, the worm wheel 33a of the gear member 33 meshes with the worm 32a of the drive motor 32 at a large reduction ratio, so that even if a load is applied to the wing 20, the wing 20 does not reverse rotation, and the wing 20 remains in a constant state. Retained.

When the car is running, the airflow flowing along the car body 1 hits the flap part 24 of the wing 20 of the rear spoiler device 1O at the rear end of the car body 1, and is rectified.

As shown by solid lines in FIGS. 1 and 3, when the flaps 24 extending laterally from the central base 11 are approximately horizontal when viewed from the front, when the air flow is rectified, the flaps 24 of the wing 20 The component force generated is only in the vertical direction, and this component force mainly contributes to improving the grounding performance of the vehicle.

When it is desired to improve the straightness of the automobile, the outer ends 25 of both wings 20 are raised or lowered and held by the lifting mechanism 30.

The drive motor 32 of the lifting mechanism 30 is started and the worm 32
When a is rotated, the worm wheel 33a is decelerated and rotated. The rotation of the worm wheel 33a is based on the axis 3.
3c to the drive gears 33b, 33b, and the drive*
**33b.

When 33b rotates, the arc rack 34 meshes with it.
．． 34 is relatively displaced, and the outer end 25 of the wing 20 moves up and down. When the drive motor 32 is stopped at an appropriate position, the wing 20 is held at that position.

As shown by imaginary lines in Fig. 3, the inner end 21 and outer end 25 of each car wing 20.20 have different heights, so the downward force generated perpendicularly to each wing 20 when rectifying the flow is The force is divided into a holding force that presses the vehicle body 1 downward and a lateral force that acts on the sides of the vehicle body 1.

The holding force improves the grounding performance of the car body l, and the lateral force acts in the opposite direction on each wing 2o distributed from the center of the car body l, and by balancing the lateral force in the opposite direction, the car body l moves in the lateral direction. It works to improve the straightness of the car.

4 and 5 show a second embodiment of the invention.

Inner ends 21, 21 . of wings 20.20. f>) 67 Wrap part 24. Brake indicator light 1 is placed on the edge of the tail end.
5.15 is installed horizontally. Other configurations are common to the first embodiment.

In the second embodiment, wings 20. extend from the center to both sides.
20 brake indicator lights 15.15 appear in a row, and when the outer end 25 of the wing 2o is raised and lowered by the lifting mechanism 30,
It can be changed into a horizontal row or ■-shaped shape, and the brake indicator light 15°15 is lit at a high position, making it easier for vehicles behind to see, improving driving safety.

In addition, each wing can generate a large descending force if it is tilted slightly forward, and if the wings are tilted by changing the height of the inner and outer ends, even if the outer end is lowered. ``Effects of the Invention'' Needless to say are good things. According to the rear spoiler device of the present invention, the wing is tilted by changing the height of the inner end and the outer end, thereby applying force to the wing in both lateral directions. By generating this force and balancing the component forces to both sides, it is possible to suppress lateral movement of the vehicle and improve straight-line performance, thereby improving self-efficiency driving stability.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a perspective view of the interior of the rear spoiler device, and FIG. 2 is a perspective view of the vicinity of the lifting mechanism. FIG. 3 is a rear view showing how it is installed in a car, FIGS. 4 and 5 show the second embodiment, and FIG. 4 is a perspective view showing the inside of the rear spoiler device. FIG. 5 is a rear view showing the state of attachment to an automobile. 10-- Rear spoiler device 11-- Central base 15
- Brake indicator light 21 Inner end 24 Flap 30 Lifting mechanism 33 Gear member 20 Wing 23 Pivot pin 25 Outer end 32 ... Drive motor 34 - ... Outer end of arc rack 25 Fig. 10 Rear spoiler device Fig.

Claims (1)

[Claims] 1. In a rear spoiler device that is attached to the rear end of a vehicle to straighten air, there is a central base fixed to the center of the vehicle body, each inner end of which is pivoted to the central base, A rear spoiler device comprising an extending wing and a lifting mechanism mounted between an outer end of the wing and a side of a vehicle body to move and hold the outer end up and down.