JPS5822870Y2 - front spoiler device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a front spoiler device for a vehicle.

It is known that a front spoiler (air dam) is effective in reducing the aerodynamic performance of a vehicle, particularly in reducing drag and front wheel lift.

It also has the effect of increasing the amount of air flowing into the radiator.
It is also connected to the cooling performance of the radiator.

However, when considering the practicality of a vehicle, it is difficult to make the front spoiler thicker due to the limited ground clearance, which requires considerable compromise in pursuit of performance.

In this design, the front spoiler comes out when driving at high speeds, and the front spoiler comes out when driving at low speeds, in order to pursue sufficient aerodynamic performance and satisfy practicality without having to make this compromise. It is stored under the front spoiler, and satisfies the aerodynamic performance and radiator cooling performance of the front spoiler, while solving the low ground clearance and approach angle. A front spoiler that reduces air resistance, saves fuel consumption, improves straight-line stability by reducing front wheel lift, protects the motor unit from mud and flying stones when driving at low speeds, and is convenient to set as an optional part. The purpose is to provide a device.

This invention will be explained as follows with regard to the embodiment shown in the drawings.

1 and 2 show a first embodiment of this invention, in which an upper half 1a is located on the back side of a front apron 31 whose front end is inclined toward the road surface in front of the vehicle body. The upper half 1a and the lower half 1b of the front spoiler main body 1 are bent at their end surfaces so that the lower half 1b is located on the downward extension of the front apron 31, and the left and right sides of the upper half are bent. Both edges are bent to the back side to form bearing flanges 2, 2, and symmetrical brackets 3, 3 are fixed on the left and right sides of the lower front of the vehicle body,
The bearing flanges 2.2 are made to circumscribe the brackets 3, 3, and the pivot shafts 4, 4 are inserted therethrough and fixed with nuts 5, so that the front spoiler main body 1 can be rotated about the pivot shafts 4.4.

6 is a washer.

A bracket 7 is fixed near the center of the left and right sides of the back side of the front spoiler main body 1, and one end of the link A is pivotally connected to the bracket 7, and one end of the other end of the link A is pivotally connected to the shaft 9 of the motor M. Pivotally connect to the other end of link B.

Thereby, the front spoiler main body 1 can be rotated between the storage position and the operating position.

A ducting gear (not shown) is provided between the motor M and the shaft 90.

Reference numeral 8 denotes an immersion knob, which is connected by appropriate gears between the immersion knob 8 and the shaft 9 of the motor M, and when the immersion knob 8 is turned by hand, the motor M
However, the present invention is not limited to this, and for example, a clutch means, a screw tightening means, etc. may be provided at appropriate positions between the shaft 9 of the motor M and the link B, and the screw tightening means may be loosened. The clutch means may be removed.

The motor M is associated with the circuit shown in FIG.

10 is a front cross member. 3 and 4 show a second embodiment of this invention, in which the lower edge of the float/toe apron 31 is cut out in a U-shape, and the width of the float/toe apron 31 is cut out in the U-shaped notch 32. The lower part of the front spoiler main body 1 is bent to the back side to form bearing flanges 2, 2, and brackets 3, 3 are fixed symmetrically on the left and right sides at the lower front of the vehicle body. The bearing flanges 2, 2 are circumscribed on 3, 3, and the pivot shafts 4,
4 is inserted through and a nut 5 is fixed, and the upper part of the front spoiler main body 1 is fitted into the U-shaped notch 32 so as to be rotatable about the pivot shafts 4, 4.

6 is a washer. A bracket 7 is fixed near the left and right center of the upper back surface of the front spoiler main body 1, one end of the link A is pivotally connected to the bracket 7, and the other end of the link A is connected to the motor shaft 9 of the motor M. Pivotally attached to the other end of B.

8 is an immersion node. The motor M is associated with the circuit shown in FIG.

As described above, the circuit shown in FIG. 5 used in the first and second embodiments will be explained when the vehicle speed becomes high (for example, 8
0km/h) or when stopped and the manual switch is turned on.
When the relay is activated and connected to the b terminal, the motor M is connected and the front spoiler main body 1 is
It comes out as shown by arrow P in the figure.

(Goes down.) At this time, the limit switch port is in a conductive state.

When the front spoiler main body 1 comes out completely, the limit switch port is mechanically turned off (not shown) and the motor M is stopped.

At this time, the limit switch port is connected to the limit switch I, so the limit switch I is in a conductive state.

However, since the relays are activated, the switch in the relay is 11 connected to the b terminal.

(The front spoiler is the only one that came out.

) Next, when the vehicle speed becomes low (for example, less than 80 km/h)
When this happens, the relay will no longer operate and the switch in the relay will be connected to the a terminal.

At this time, since the limit switch I is in a conductive state, the motor M rotates in reverse, and the front spoiler main body 1 is retracted (up).

When the front spoiler body 1 is completely retracted, the limit switch is mechanically turned off, so the motor M
stops.

C and 2 are the vehicle speed switch, E is the manual switch, G is the pilot lamp for operation indication, H is the ignition switch, and G is the circuit breaker.

Next, to explain the operation of this device, in this device, when the traveling speed reaches a high speed, for example, 80 km/h, the vehicle speed switch 8 built into the speedometer is turned on, the motor M rotates, and when driving at high speed Lower the front spoiler body 1 at position 1.

When the vehicle speed becomes low, for example, less than 80 km/h, the vehicle speed switch 8 is turned OFF, the motor M is reversely rotated, and the vehicle returns to its original low-speed running state.

The fact that the front spoiler main body 1 is set for high-speed driving is notified to the driver by means of an operation display pilot lamp.

A manual switch is provided to facilitate checking, cleaning, and repair of this device, and it can be activated even when the vehicle is stopped.

If the front spoiler body 1 does not return from high speed to low speed due to a failure of the motor, etc.,
It is also possible to return the emergency knob 8 that has been attached to it by rotating it by hand.

Front spoiler 1 body 1 may be made of striped steel plate, but for greater safety (front spoiler 1 body 1 is suitable for high-speed driving)
(to prevent interference with the road surface) It is convenient to use a material such as urethane.

The bearing flange 2 provided on the front spoiler body 1
, 2 may be provided as separate parts fixed to the front spoiler main body 1, and the structure of the links A, B, etc. that transmit the rotation of the motor M to move the front spoiler main body 1 is limited to the above embodiment. It's not something that can be done.

As mentioned above, this idea was designed to retract the front spoiler body when driving at low speeds, and to expose the front spoiler body only when driving at high speeds.
While satisfying sufficient aerodynamic performance and cooling performance, it was possible to solve the problems of low ground clearance and low approach angle, which had been seen as practical problems in the past.

Also, since the front spoiler body is made to come out only when driving at high speed, it is possible to form a front spoiler body with a sufficient size, which reduces the air resistance of the vehicle and improves fuel efficiency.

Also, by reducing front wheel lift at high speeds, straight-line stability is improved.

Also, when driving at low speeds, the front spoiler itself can protect the motor unit from mud and flying stones.

Further, since there is an apron, there is relatively little change in the shape of the front part of the vehicle between when the front spoiler is exposed and when it is housed, so changes in appearance can be reduced.

Furthermore, since the front spoiler device of this invention is formed as a unit independent of the outer panel (apron), it is convenient to set it as an optional part.

Furthermore, in this design, the lower half of the front spoiler body is positioned on the downward extension of the front end of the front apron, which is slanted toward the road surface in front of the vehicle, increasing the amount of air taken into the radiator. However, there are effects such as being able to lower the temperature of the cooling water, especially when driving at high speeds.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the components of the first embodiment, and FIG. 2 is a perspective view of the components of the first embodiment.
3 is a perspective view of the components of the second embodiment; FIG. 4 is a longitudinal sectional view showing the operation of the front spoiler device of the second embodiment; FIG. 5 is a circuit diagram of the first embodiment and the second embodiment. 1...Front spoiler body, A, B...
...Link, M...Motor.

Claims (1)

[Scope of utility model registration request] The front end of the front apron is inclined toward the road surface in front of the vehicle body, and a front spoiler main body is pivotally supported on the back surface of the front apron, and the main body of the front spoiler is pivoted between a retracted position and an operating position. The front spoiler body is connected to the motor via a link so that the lower half of the front spoiler body is positioned on the downward extension of the front apron, and the front spoiler body is moved to the operating position at a predetermined speed or higher and retracted at a speed lower than a predetermined speed. to rotate it into position.
A front spoiler device characterized in that a vehicle speed switch that is activated when the vehicle reaches a predetermined speed is provided in the control circuit of the motor.