JPH082062Y2 - Movable air spoiler for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a so-called wing type air spoiler mounted on the rear part of a vehicle.

(Prior Art) An air spoiler regulates the air flow in the vicinity of the vehicle body when the vehicle is traveling, and in particular, reduces the air resistance during high-speed traveling as well as downforce by the air flow, that is, the force that pushes the vehicle body against the road surface. Generate and reduce lift.

Conventionally, as a so-called wing type rear spoiler,
A type in which the rear edge 2a of the wing 2 is rotated upward, such as the rear spoiler 1 shown in FIG. 11, or a type in which a part of the wing 4 slides backward, such as the rear spoiler 3 shown in FIG. There is one. These movable rear spoilers 1 and 3 both move wings 2 and 4 in accordance with the vehicle speed to obtain downforce in accordance with the vehicle speed, and at the same time regulate the airflow generated in the upper rear surface of the vehicle body.

(Problems to be solved by the invention) By the way, when a vehicle runs on a snowy road or a bad road, as shown by an arrow in Fig. 13, turbulence of airflow occurs at the lower rear part of the vehicle. This turbulent air flow causes snow, dust, and the like to wind up, causing the rear surface of the vehicle body to become dirty. Above-mentioned conventional movable rear spoiler
In Nos. 1 and 3, there was a problem that this air flow could not be suppressed but rather promoted.

The present invention has been made to solve the above-mentioned problems, and aims to reduce the lift during high-speed traveling and prevent snow, dust, etc., from winding up under the rear surface of the vehicle when traveling on snowy roads or rough roads. It is an object of the present invention to provide a movable air spoiler for a vehicle.

(Means for Solving the Problems) In order to achieve the above object, according to the present invention, it extends in the vehicle width direction and is attached to the rear portion of the vehicle via a stay,
In a vehicle air spoiler having a rectifying plate that rectifies the flow of air near the vehicle body when the vehicle is running, the rectifying plate is
It consists of a fixed wing that constitutes the main body of the current plate and a movable wing that is stored under the fixed wing and has a rear edge inclined obliquely upward, for moving the movable wing with respect to the fixed wing. A first guide mechanism for guiding the movement of the movable wing, further comprising driving means, the driving means guiding a movement of the movable wing from a storage position located below the fixed wing to a first operating position protruding rearward of the fixed wing. A second guide mechanism for guiding the movable wing from the first operating position to a second operating position in which the movable wing is rotated downward while maintaining a state of projecting to the rear of the fixed wing; And a drive mechanism for moving the movable wing from the retracted position to one of the first operating position and the second operating position.

(Operation) When the movable wing is moved to the first operating position by the driving means when the vehicle is traveling at high speed, the rear end of the movable wing is inclined obliquely upward, so that the airflow is guided obliquely upward. Lifting force is reduced, and good downforce can be obtained. Further, when the movable wing is moved to the second operating position during traveling on a snowy road or a bad road, an airflow is generated downward along the rear surface of the vehicle body. This airflow suppresses an ascending airflow generated in the lower portion of the rear surface of the vehicle body, and reduces rolling up of snow, dust, and the like.

Embodiment An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of a movable air spoiler for a vehicle to which the present invention is applied. The movable air spoiler 10 is a so-called wing type rear spoiler. The spoiler 10 includes a fixed wing 11, three stays 12 to 14, and a pair of movable wings 15.
And a movable wing drive device (drive means) 16 and the like. The rear end of the movable wing 15 has a predetermined angle and is inclined obliquely upward, and the predetermined angle is, for example, 5 degrees.

The fixed wing 11 is fixed to the rear end edge of the trunk lid 17 via stays 12 to 14. As shown in FIGS. 2 and 3, a movable wing 15 is stored on the lower surface of the fixed wing 11, and a step 11a continuous to the rear end of the fixed wing 11 is formed on each of the stays 12, 13 and It is formed between 13 and 14, respectively. A recess 11b is further formed in the center of the stepped portion 11a in the vehicle width direction, and a slider 20 and a guide mechanism 19 described later are housed in the recess 11b. On the other hand, an electric motor 18, which will be described later, is housed in the center stay 13.

The movable wing drive device 16 is composed of an electric motor 18, a guide mechanism 19, a slider 20 and the like. Of these, the guide mechanism 19 and the slider 20 are provided corresponding to each movable wing 15.

As shown in FIG. 4, the guide mechanism 19 is composed of a pair of inner rails 22 and outer rails 23, which are fixed to both sides of each recess 11b of the fixed wing 11. Specifically, the rails 22 and 23 are fixed to both side portions of each recess 11b, for example, with their rear ends tilted upward by about 5 degrees with respect to the fixed wings 11. Each of the rails 22 and 23 has a substantially U-shaped cross-section that opens inward.
The length is set to be substantially the same as the front-rear length of b, and a notch 22b is formed at a position near the rear portion of the bottom plate 22a. Outer rail 23
Is set to approximately half the length of the inner rail 22,
It is arranged at a position corresponding to the latter half of the inner rail 22. The rear end of the outer rail 23 is closed by a stopper 23b.
A leaf spring 24 is provided inside the bottom plate 23a of the outer rail 23 near the stopper 23b (Fig. 5). On the leaf spring 24, an engaging portion 24a which is convex upward is bent and formed, one end of the stopper 23b side is welded to the bottom plate 23a with the engaging portion 24a sandwiched, and the other end is a free end. ing. The locking portion 24a can lock the roller 30 described later at the contact position of the stopper 23b (the position indicated by the chain double-dashed line in FIG. 5).

The slider 20 includes a base plate 25 and a pair of extension pieces 26,2.
It is composed of 7 and 3 pairs of rollers 28-30. The base plate 25 has a substantially rectangular shape, and projecting pieces 25a and 25b are integrally bent and formed upward at the front and rear portions of both side edges thereof. A pin hole is formed in the front protruding piece 25a, and a shaft hole is formed in the rear protruding piece 25b.

The extending pieces 26 and 27 are bottom plates 26a and 27a, and the bottom plates 26a and 27a, respectively.
Inner plates 26b, 27b extending above the inner and outer edges of 27a
And outer plates 26c and 27c, which are integrally bent to have a U-shaped cross section. A shaft hole is formed in the front portion of each inner plate 26b, 27b, and a pin hole is formed in the rear portion thereof. In addition, each outer plate 26c, 27c is provided with a pin hole. These extension pieces 26 and 27 are
It is rotatably attached to the base plate 25 by means of pins 31 fitted in the shaft holes of 25b and the shaft holes of the inner plates 26b, 27b, respectively. Then, the projecting piece 25a, the inner plates 26b, 27b and the outer plates 26c, 27c.
Rollers 28, 29, 30 are rotatably attached to the respective pin holes. That is, the roller 29 is located behind the roller 28.
Are arranged, and the roller 30 is arranged diagonally outside the roller 29.

This slider 20 is a movable wing for the base plate 25.
While screwing and fixing to the center of the upper surface of 15, each roller 28,2
9 is rotatably fitted to each inner rail 22, and the bottom plates 26a and 27a of the extending pieces 26 and 27 are positioned below the inner rails 22 to avoid interference with the inner rails 22 and each roller. The outer rails 23 are fitted with 30 so that they can roll.

Each slider 20 is connected to the electric motor 18 via a cable 32 (FIG. 6). Each cable 32
It is composed of a tube 33 and a wire 34 inserted into the tube 33, and both ends of each tube 33 are fixed to predetermined positions of the fixed wings 11. On the other hand, one end of each wire 34 is fixed to the base plate 25 of the slider 20, and the other end is fixed to the end of the rack 36. Each rack
36 is a pinion 37 fixed to the output shaft of the electric motor 18.
, And they are facing each other so as to sandwich this. Therefore, when the electric motor 18 rotates, each rack 36 pulls or pushes the wire 34 in the tube 33, and slides the slider 20 along the rails 22 and 23 (driving mechanism).

The electric motor 18 is electrically connected to a controller (not shown), and selectively rotates in both forward and reverse directions according to a drive signal supplied from the controller. The input side of the controller is connected to a vehicle speed sensor, a switch (both not shown) arranged in the driver's seat, etc., and supplies a forward rotation or reverse rotation signal to the electric motor 18 in accordance with signals supplied from these. To do.

 The operation will be described below.

The movable wing 15 is automatically operated by the above-mentioned controller according to the traveling state of the vehicle. That is, when the vehicle is stopped or running at low speed, the controller does not supply a drive signal to the electric motor 18, and the movable wing 15 is housed in the step portion 11a of the fixed wing 11 as shown in FIG. There is.

From this state, the vehicle runs at high speed, for example, the vehicle speed is 80 km.
When / h is reached, the controller supplies a drive signal to the electric motor 18 to move the movable wing 15 to the first operation position rearward by a predetermined distance, for example, 60 mm (first guide mechanism). At this time, as described above, in addition to the inner rail 22 and the outer rail 23 being fixed to both side portions of each recess 11b with their rear ends tilted upward by about 5 degrees, the rear end of the movable wing 15 has a predetermined length. Since the movable wing 15 has moved to the first operating position because it is inclined obliquely upward with an angle (for example, 5 degrees), the movable wing 15 extending rearward from the rear edge of the fixed wing 11 is obliquely upward. And is held in a state of being pushed up by a predetermined angle (for example, 5 degrees) (FIG. 7). FIG. 8 shows the relationship between the sliding amount of the movable wing 15 and the air resistance coefficient and the lift coefficient. When the sliding amount of the movable wing 15 is increased,
The lift coefficient decreases, but the air resistance coefficient increases. Therefore, these are compared and weighed to set the sliding amount of the movable wing 15 to an optimum value.

Then, when the vehicle runs at a low speed, for example, when the vehicle speed becomes 30 km / h or less, the controller drives the electric motor 18 to slide the movable wing 15 to the front storage position, and stores it in the step portion 11a of the fixed wing 11. To do.

On the other hand, when the switch in the driver's seat is turned on, the electric motor 18 causes the movable wing 15 to slide rearward from the first position shown in FIG. At this time, the roller 30 of the slider 20 rides over the locking portion 24a of the leaf spring 24 and contacts the stopper 23b of the outer rail 23 (2 in FIG. 5).
The movement of the extension pieces 26, 27 to the rear is restricted. When the slider 20 is further slid rearward, the roller 29 falls downward from the notch 22a of the inner rail 22, and the base plate 25 and the extending pieces 26 and 27 are separated from each other by the pin 3.
It rotates relative to 1 and bends (Fig. 9). As a result, the base plate 25, that is, the movable wing 15, rotates the rear edge around the roller 28 fitted to the inner rail 22 at a predetermined angle below the storage position of the movable wing 15, for example, 30 degrees. And move to the second operating position (second
Guide mechanism). The movable wing 15 rotated downward rectifies the air flowing under the fixed wing 11 downward along the rear surface of the vehicle body as shown by the arrow in FIG.
It suppresses the generation of turbulent air flow that tries to wind up dust and the like.

If the driver's seat switch is turned off from this state,
The movable wing 15 is housed in the fixed wing 11. Specifically, first, since the roller 30 is locked by the locking portion 24a of the leaf spring 24, when the base plate 25 is pulled,
The base plate 25 and the extension pieces 26, 27 extend relative to each other while lifting the roller 29 so as to be substantially horizontal, the rear end of the movable wing 15 is lifted, and the roller 29 is returned into the inner rail 22. . Further, when the base plate 25 is pulled forward, the roller 30 pushes down the locking portion 24a and rides over it, the base plate 25 and the extending pieces 26 and 27 slide forward, and the movable wing 15 is a stepped portion of the fixed wing 11. It is stored in 11a.

Note that when the vehicle is traveling at high speed, for example, when the vehicle speed is 80 km / h or more, the controller does not rotate the movable wing 15 downward even if the switch is operated, and prevents the movable wing 15 from increasing air resistance and lift. To do.

The present invention is not limited to the application to the rear spoiler fixed to the rear edge of the trunk lid 17, but may be applied to the roof spoiler in the so-called two-box car or the like.

(Effect of the Invention) As described above, according to the present invention, the straightening plate that extends in the vehicle width direction and is attached to the rear portion of the vehicle through the stay is provided to rectify the air flow near the vehicle body when the vehicle is traveling. In an air spoiler for a vehicle, the straightening vane is composed of a fixed wing that forms the main body of the straightening vane and a movable wing that is stored under the fixed wing and has a rear edge inclined obliquely upward. , Further comprising drive means for moving the movable wing, the drive means comprising:
A first guide mechanism that guides the movement of the movable wing from a storage position located below the fixed wing to a first operating position that projects rearward of the fixed wing, and a first guide mechanism that maintains a state of protruding rearward of the fixed wing. A second guide mechanism for guiding the movable wing from the operating position to a second operating position where the movable wing is rotated downward, and a drive for moving the movable wing from the retracted position to one of the first operating position and the second operating position. Since it is equipped with a mechanism, it is possible to sufficiently reduce the lift force at high speed running, while at the time of traveling on snowy roads and bad roads, while reducing the lift force to some extent by the fixed wings, snow and dust at the rear of the vehicle body There is an excellent effect that it is possible to suppress the winding of the tape.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment in which the movable air spoiler according to the present invention is applied to a rear spoiler, FIG. 2 is a cross-sectional view of the essential part of FIG. 1 seen from the rear, and FIG. 1
FIG. 4 is a side view showing the movable wing drive device shown in FIG.
FIG. 5 is an exploded perspective view showing the movable wing drive device shown in FIG. 5, FIG. 5 is an enlarged view of a main part of the outer rail shown in FIG. 4, and FIG. 6 is a side view showing a rack and pinion connected to the electric motor shown in FIG. FIG. 7 is a side view showing the movable wing drive device in the state in which the movable wing of FIG. 1 is moved to the first operating position, and FIG. 8 is a graph showing the relationship between the sliding amount of the movable wing and the air resistance coefficient and lift coefficient. 9 is a side view showing the movable wing drive device in a state in which the movable wing shown in FIG. 1 is moved to the second operating position, and FIG. 10 is a diagram showing the movable wing shown in FIG. 1 moved to the second operating position. Side view showing the air flow in the state,
11 and 12 are perspective views of a conventional movable rear spoiler,
FIG. 13 is a side view showing an air flow generated behind the vehicle. 10-movable air spoiler, 11-fixed wing, 12-
14 ... Stay, 15 ... Movable wing, 16 ... Movable wing drive device (driving means), 18 ... Electric motor, 19 ... Guide mechanism, 20 ... Slider, 22,23 ... Rail, 28-30
……roller.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Masayoshi Sakoda 5-3-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation (72) Creator Katsumasa Sato 185 Iida, Hachimotomatsu-cho, Hiroshima Prefecture Of 6

Claims (1)

[Scope of utility model registration request] 1. An air spoiler for a vehicle, comprising a rectifying plate extending in the vehicle width direction and attached to a rear portion of the vehicle via a stay, and rectifying a flow of air near the vehicle body when the vehicle is traveling. It consists of a fixed wing that constitutes the main body of the current plate and a movable wing that is stored under the fixed wing and has a rear edge inclined obliquely upward, for moving the movable wing with respect to the fixed wing. A first guide mechanism for guiding the movement of the movable wing to a first operating position projecting rearward of the fixed wing from a storage position located below the fixed wing; And the movable wing is moved from the first operating position to a second operating position in which the movable wing is rotated downward while maintaining a state of projecting to the rear of the fixed wing. The second to guide the grayed
A movable air spoiler for a vehicle, comprising: a guide mechanism; and a drive mechanism that moves the movable wing from the storage position to one of the first operating position and the second operating position.