JPS60234075A - Air-wing installation structure for car - Google Patents

Abstract

PURPOSE:To prevent the floating-up of a chassis by supporting an air-wing so that the front part can be moved vertically, having the rear part as fulcrum, at the front and rear leg parts in pairs erected at the rear part of a chassis, and horizontally correcting the air wing against the wind pressure supplied from behind the chassis. CONSTITUTION:Onto the upper surface of a trunk lid 2 at the rear part of a chassis 1, a pair of leg parts 5 and 6 are erected in the longitudinal direction, and an elliptical hole 7 and a circular hole 8 which extend in the vertical direction are formed at a nearly equal height in the upper parts of the leg parts 5 and 6. While, an air wing A2 is formed by a long plate-shaped member extending in the direction of car width of the trunk lid 2, and onto the side edge part, the pins 9 and 10 which can be fitted into the respective holes 6 and 7 are installed projectingly. The pins 6 and 7 are inserted into the respective holes 6 and 7, and the lower edge of a spring 11 whose upper edge is engaged with the pin 9 is engaged with a hook 12 installed in the vicinity of the leg part 5, and the air-wing A2 is supported in swingable ways, having the pin 10 as fulcrum.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Field of Industrial Application The present invention relates to a mounting structure for an air wing provided at the rear of a vehicle body in order to improve the running stability of a vehicle.

(2) Prior Art and Problems Conventionally, as shown in Fig. 1, for example, as shown in Fig. 1, the mounting structure of this type of air wing^1 is such that the legs 3 are erected on the upper surface of the trunk lid 2 at the rear of the vehicle body 1. There was one in which an air wing was fixed to the leg 3 at the rear (see Japanese Utility Model Publication No. 57-94583).

However, in this way, Air Wing AI can be
If the rear part of the vehicle is swayed during a sharp curve and skids, or if the vehicle rotates 180 degrees and travels backwards, the air wing AI will be activated by the wind pressure from the rear of the vehicle. There is a problem in that lift is generated and the vehicle body 1 tends to float up, impairing running stability.

(3) Purpose of the Invention The present invention has been made by focusing on the above-mentioned conventional problems, and its purpose is to provide an air wing mounting structure that can ensure stability of the vehicle body during abnormal driving. It is about providing.

(4) Structure of the Invention As a means for achieving the above object, the present invention includes a pair of front and rear legs erected on the upper surface of a panel at the rear of the vehicle body, an air wing being pivotally supported on one of these legs, and an air wing being pivotally supported on the other leg. The gist is that it is supported so that it can move upward against wind pressure from the rear of the vehicle.

(5) Embodiments of the invention Hereinafter, embodiments of the invention will be described in detail based on the accompanying drawings.

In the first embodiment of the present invention shown in FIGS. 2 and 3, a pair of legs 5 and 6 are erected in the front-rear direction on the upper surface of the trunk lint 2 at the rear of the vehicle body 1. As shown in FIG. A long hole 7 extending vertically is formed in the upper part of the front leg 5, and a circular hole 8 is formed in a part of the rear leg 6 at approximately the same height as the upper end of the long hole 7. has been done.

Although these legs 5 and 6 are provided upright at both ends of the trunk lid 2 in the vehicle width direction, only the leg at the right end of the trunk lid 2 is shown in the drawing.

On the other hand, the air wing ^2 consists of a long plate-like member extending in the vehicle width direction of the trunk lid 2, and the leg portion 5 is attached to the side end.
．． The pins 8 and 10 that are fitted and supported by the air wing A
In addition, one end of a coil spring 11 is secured to the front pin 8.

Therefore, by fitting these pins 9 and 10 into the long holes 7 and circular holes 8 of the legs 5 and 6, and engaging the lower end of the spring 11 with the hook 12 provided near the front leg 5, As shown in FIG. 3, the air wing A2 is supported by a rear pin 10 as a pivot point, and the front side is pulled downward by the action of a spring 11 until the pin 8 comes into contact with the lower end of the elongated hole 7. , a horizontal line 13 extending the center of the rear pin 10, and a straight line 1 connecting the rear pin 10 and the front pin 9.
4 and is supported upward at the rear with an angle θ. Note that the spring 11 is not very strong, and air wing A may be damaged due to the effects of running vibrations and turbulence.
2 is set so that it does not flap.

Therefore, under normal conditions, air wing A2 has spring 1.
1, the front pin 8 comes into contact with the lower end of the elongated hole 7 and is held in an upwardly rearward position, so that when driving at high speeds, this action suppresses the lifting of the vehicle body 1 and ensures running stability, and also prevents sharp curves. When the vehicle body 1 is turned backward due to high-speed driving, etc., the front side of the air wing A2 receives a force in the L direction due to wind pressure from the rear of the vehicle body, and the pin 8 moves into the elongated hole 7 against the spring force. It floats up until it touches the top edge of the
The above-mentioned angle θ becomes zero and a substantially horizontal state is maintained, thereby preventing the vehicle body 1 from floating -L and ensuring the stability of the vehicle body 1.

4 and 5 show a second embodiment of the present invention, in which a pair of front and rear legs 5, 8 are erected on the upper surface of a trunk lid 2 at the rear of a vehicle body 1, and the legs 5. A long hole 7 and a circular hole 8 are provided in the upper part of the air wing 6, and a pin 8.10 is provided projecting from the side end of the air wing 2 to be fitted and supported in the long hole 7 and the circular hole 8. However, in this embodiment, a spring 15 is installed above the elongated hole 7, and the front pin 9 inserted into the elongated hole 7 is directly pressed by the spring 15. Incidentally, the pressing force of this spring 15 is also adjusted to such a strength that the air wing ^2 does not flap, as in the previous embodiment.

Therefore, in this embodiment, under normal conditions, the front pin 8
Since the air wing A2 is pressed by the spring 15 and comes into contact with the lower end of the elongated hole 7, the air wing A2 is not only held in the rearward position but also prevents the vehicle from rotating and facing backward when making a sharp turn. In such a case, the pin 9 pushes up the spring 15 due to the wind pressure from the rear of the vehicle body, moves in the L direction, and is maintained in a substantially horizontal state, thereby ensuring the stability of the vehicle body.

In both the first and second embodiments, the upper end of the elongated hole 7 provided in the front leg 5 is at approximately the same height as the circular hole 8 in the rear leg 6, so that vibrations of the vehicle body are reduced during high-speed driving. Even if the spring 11.15 is bent due to air turbulence or air turbulence, and the front side of the air wing A2 moves upward, the air wing A2 will not be in a nearly horizontal state and will not become excavated due to vibrations of the vehicle body, etc. There is no loss of stability.

6 and 7 show a third embodiment of the present invention, in which a pair of front and rear legs If (, 17) are erected on two sides of the trunk lint 2'' as in the above embodiment, and an air wing is provided. A
The pins 8, 10 protruding from the side ends of the legs 18.1
In this embodiment, a circular hole 18 for pivotally supporting the front pin 9 of the air wing A2 is provided in the upper part of the front leg portion 16, and from the circular hole 18, a A stopper portion 19 of the air wing A2 extends, and a buffer member 20 is attached to the tip thereof. Also,
A groove hole 21 that removably supports the rear pin 10 of the air wing A2 is provided at the upper end of the rear leg 17.
It is provided at a higher position than the circular hole 18 of No. 6.

Therefore, the air wing A2 in this embodiment is rotatably supported by the pin 9 on the front side, and movably supported on the rear side between the slot 21 and the stopper part 18. As a result, in normal conditions, by fitting the rear pin 10 into the slot 21, the air wing A2 is supported in a bridge-up state similar to the embodiment described above, so that lifting of the vehicle body 1 is prevented during high-speed driving. This prevents the rear pin 10 from coming out of the slot 21 due to wind pressure from the rear of the vehicle body 1, in the event that the mid-rest 1 rotates during a sharp curve and ends up facing backwards. , as shown by the imaginary line in the seventh cabinet, the rear side rotates to one side and the stomper part 19
It comes into contact with the buffer member 20 at the tip. Therefore, the air wing A2, which stands on its head in this way, provides a large resistance to the wind pressure from the rear, prevents the vehicle body l from floating, and also acts as an air brake. In this embodiment, the effect is further improved by lowering the pickup position of the air wing A2.

(6) As described in detail, according to the air wing for a vehicle according to the present invention, when the vehicle rotates due to a sharp curve etc. and runs backwards, the air wing works to prevent the car body from lifting up, thereby ensuring the stability of the car body.

[Brief explanation of the drawing]

Fig. 1 is a side view of the rear part of a vehicle body showing an example of a conventional air wing for a vehicle, Fig. 2 is a partial perspective view showing a first embodiment of the air wing for a vehicle according to the present invention, and Fig. 3 is an air wing assembly. 4 is a partial perspective view showing the second embodiment of the present invention, FIG. 5 is a side view after the air wing is assembled, and FIG. 6 is a partial perspective view showing the third embodiment of the present invention. The perspective view and FIG. 7 are side views after the air wing is assembled. 1...Vehicle body 2...Trunk lid 5.16...Front leg 6.17...Rear leg AI, A2...Air wing patent applicant Nissan Motor Co., Ltd. Figure 5, Figure 6 figure

Claims (1)

[Claims] A pair of front and rear legs are erected on the top of the panel at the rear of the vehicle.
The air wing is pivotally supported on one of these legs, and
On the other hand, there is a mounting structure for a vehicle air wing, which is supported so as to be movable upward against wind pressure from the rear of the vehicle body.