KR960001154Y1 - The rear spoiler of a car - Google Patents

Abstract

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Description

REAR SPOLIER OF A CAR

1 is a schematic configuration diagram of a rear spoiler of a conventional vehicle

2 is a rear spoiler configuration of the first and other examples,

(a) is a perspective view thereof

(b) is a sectional view taken along the line C-C of (a)

3 is an exploded perspective view of the rear spoiler according to the present invention

4 is a diagram illustrating the operation of FIG.

5 is a mounting view of the present invention.

* Explanation of symbols for main parts of the drawings

1: trunk lid 10: support

12: Spoiler 14: support shaft

16: support groove 18: spring

20: corrugated pipe 22: ORIFICE

The present invention relates to a rear spoiler (REAR SPOILER) of the vehicle, specifically, the position of the rear spoiler is variable with increasing vehicle speed, driving stability by reducing the lift and drag of the vehicle. It is about the rear spoiler raised.

The rear spoiler of the vehicle (hereinafter, abbreviated as "spoiler") is a driving stabilizer installed on the trunk lid to assist vehicle stability at high speeds.

That is, in the case of automobiles, especially in passenger cars, the cross-section of the overall shape is in the form of an airfoil (AIRFOLL), so that the air flow is faster than the bottom surface at high speed, and according to Bernoulli theorem, the pressure at the place where the flow velocity is high Lower than this slow pressure, the car has an instability that rises as a whole. This is the same principle that lift is generated on the wing of the aircraft, so when a car running on the ground receives lift, the grip between the tire and the road surface is weakened, the SLIP rate is increased, and the tire driving force is lost. As a result, the braking force becomes weak at the time of braking, and the braking distance increases, so the risk of vehicle collision and rollover is very high.

In order to prevent this, a spoiler having an inverted airfoil cross section is fixed to the rear of the vehicle to improve the traction of the injured vehicle, as well as to improve aerodynamic characteristics, thereby improving fuel economy and driving safety.

Conventional spoilers include spoilers that are supported along the vehicle width on the trunk lid, as well as sports cars, to be installed along the width of the vehicle, to reduce drag in hatchback style passenger cars, and to the rear of the trunk lid. There are many kinds of spoilers, such as formed by recessed grooves, and a variable driving angle of the spoiler has been developed by having a separate driving device for the fixed one. (See FIGS. 1 and 2)

That is, the spoiler is fixedly mounted on the trunk lid 1 or rubber material in the groove 16 of the trunk lid 1, as shown in Patent Publication No. 61-196881 shown in FIG. By installing the spoiler 11 of the, the compressed air from the compressor 19 through the pipe 18 is supplied to the spoiler 11 to swell so that the spoiler shape is changed to change the aerodynamic characteristics of the spoiler There is also.

However, since the trunk lid must be retrofitted, whether fixed or variable wing, the practicality of the application of the trunk lid is largely reduced, and in the case of fixed wing, there is little wearing effect when the vehicle traveling speed changes frequently. The complexities resulted in increased installation costs, less volume in the luggage compartment, and many closures that were not practical for maintenance, including modification of the trunk lid.

Accordingly, the present invention seeks to provide a spoiler that varies according to wind power without changing the external shape of the trunk lid of the vehicle at all.

To this end, the support base is adhesively fixed to both width positions of the trunk lid, and the support shaft groove is formed in the support shaft to which the support shaft of the spoiler can slide, and a spring and a corrugated plate are formed in the support shaft groove. When the vehicle speed increases, the spoiler angle changes to a position where the support shaft slides along the groove to reduce lift, and the spring suppresses the restoration and vibration of the spoiler, and at the same time, the corrugated tube contracts and the orifice is reduced. As it is gradually changed through the spoiler to prevent the vibration caused by the wind.

Therefore, it is easy to install and can be used semi-permanently, thereby improving practicality and improving vehicle running performance and reducing maintenance costs.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

According to the present invention, as shown in FIGS. 3 to 5, support 10 is provided at both ends of the trunk lid 1, and the support shaft 14 of the spoiler 12 is supported by the support 10. However, the support shaft 14 is mounted to be slidable in the support groove 16 forming the arc of the support 10, the support shaft 14 of the spoiler 12 in the support groove 16 The spring 18 which is supported by the spring and the corrugated pipe 20 in contact with the rear end of the support shaft 14 are combined in a configuration in communication with the orifice 22.

3 is an exploded perspective view of the spoiler according to the present invention, the support shaft 14 is formed on the center of gravity line of the spoiler 12, the support shaft 14 is formed by the same curvature of the support groove 16, the sliding It is manufactured to move smoothly, and the arc length of the support groove 16 is determined as the minimum and maximum change angle range in consideration of the change angle range of the spoiler 12.

4 is a configuration diagram in which the support groove 16 of the support 10 and the spring 18 and the corrugated pipe 20 are installed in the support groove 16, and the dotted line shows the spoiler 12.

Here, the spring 18 has elasticity to push the support shaft 14, that is, the spoiler 12 toward the corrugated pipe 20 by touching the front end of the support shaft 14, the rear end of the support shaft 14 The corrugated pipe 20 is in contact with one side of the corrugated pipe 20, and the rear end thereof communicates with the orifice 22 so that the support shaft 14, that is, the spoiler 12, suddenly pushes the corrugated pipe 20. Even when the wind is received, the air in the corrugated pipe 20 does not escape the orifice 22 at once and has a cushioning function as it is compressed, thereby preventing the vibration of the spoiler 12 due to the impact of the wind pressure while driving or the spring ( 18) It is also in contact with the support shaft 14 to assist the cushioning function as well as the positional function of the spoiler 12.

5 is an explanatory view of the mounting of the present invention.

The order of installation is to fix one of the supports 10 on the trunk lid 1 first. At this time, the method of fixed installation may use an adhesive or may fasten on the trunk lid 1 using a separate screw.

In this state, the support shaft 14 is sandwiched between the spring 18 and the corrugated pipe 20 as shown in FIG. 4 with the rounded surface of the spoiler 12 facing down, and the other support 10 being inserted in the same manner. After fitting into the other support groove 16 and fixedly installed on the trunk lid (1) is completed mounting.

The operation of the mounted spoiler 12 as described above will be described with reference to FIGS. 4 (a) and (b).

The state in which the spoiler 12 is located in the support groove 16 below a predetermined speed of the vehicle, that is, below a speed at which the function of the spoiler is unnecessary is as shown in FIG. 4 (a).

At this time, the spoiler 12, that is, the support shaft 14 while maintaining the balance between the spring 18 and the corrugated pipe 20, when the air velocity flowing through the vehicle is accelerated to the vehicle spoiler 12 is It slides to the 4th position (b).

In other words, the spoiler 12 has a camber angle of α as shown in FIG. 4 (a) with respect to the wind power, but the camber angle becomes larger as it changes to α 'as shown in FIG. 4 (b). The speed of flowing the lower surface becomes faster, and the pressure decreases by Bernoulli's theorem, so that the wind force is pressed from the upper surface of the spoiler 12 to the lower surface. .

Here, when the spoiler 12 is changed from the fourth position (a) to the position (b) by vehicle acceleration, the spring 18 is extended and the support shaft 14 presses the corrugated pipe 20. In the case of acceleration, when the angle of the spoiler 12 is suddenly changed (α → α ′), the air in the corrugated pipe 20 should be exhausted while the corrugated pipe 20 is compressed, but only the air flows out through the orifice 22. The air in the corrugated pipe 20 is compressed to exert a shock absorbing function, thereby preventing the sudden change of angle of the spoiler 12, thereby gradually changing, thereby protecting the spoiler 12 from impact.

At this time, the spring 18 has a force (restoration force) for pulling the support shaft 14, that is, the spoiler 12, but is weaker than the wind speed according to the vehicle speed. It is restored to the position, and the corrugated wall of the corrugated pipe 20 is to be assisted with this. Therefore, since the spring 18 and the corrugated pipe 20 support the support shaft 14, there is no so-called flutter phenomenon at the time of high speed driving, and the quiet driving is possible.

Meanwhile, in the above description, the support 10 is simply illustrated as having only the spoiler 12 support function. However, if the support 10 is streamlined to have the function of the vertical wing, the rolling phenomenon of the vehicle is also suppressed to further improve driving stability. It becomes possible.

In addition, since the opis 22 in the support groove 16 is a small hole, it may be made to penetrate into the support 10 to prevent clogging so that the spoiler 12 may not be operated during use.

As described above, the present invention is easy to operate because the spoiler is variable by wind speed according to the vehicle speed, fewer failures, lower manufacturing costs, clear driving stability at high speeds, and the trunk room does not affect the space. Since it can be mounted on the trunk lid, it can also be mounted on an existing vehicle, thereby increasing its practicality.

Claims (4)

In the rear spoiler of the car, Fixed support 10 for the spoiler 12 to both ends on the trunk lid 11, While the support shaft 14 of the spoiler 12 is in contact with the support groove 16 formed in the support 10 so as to slide, The tip of the support shaft 14 is in contact with the spring 18, The rear end of the support shaft 14 is connected to the corrugated pipe 20, The rear spoiler of the vehicle, characterized in that the rear end of the corrugated pipe 20 is formed in communication with the orifice 22 is combined. The method of claim 1, The support (10) is a spoiler (12) of the rear spoiler of the automobile, characterized in that the production is installed so as to have a function of the vertical wing for the horizontal wing. The method of claim 1, The rear spoiler of the vehicle, characterized in that the support 10 is fixedly mounted on the trunk lid 1 using an adhesive. The method of claim 1, The rear spoiler of the vehicle, characterized in that the fixed mounting method on the trunk lid (1) is fastened with a screw.