JPH0620174U - Side spoiler device - Google Patents

Abstract

(57) [Abstract] [Purpose] For vehicles with high vehicle height, such as vans, trucks, and buses, move the point of application of lateral force generated by the side wind during driving to a lower position and reduce the rolling moment. Prevents turbulence and rollover accidents and ensures stable high-speed driving. [Structure] The spoiler side panel 2 connected and fixed to the body side and the side spoiler main body 3 which is operated and stored (elevated) on the back side are connected by an operation and storage device A, and a track for operation and storage is secured, and rattling is also generated A slider rail mechanism B for guiding the storage and actuation is provided to serve also as the dual purpose.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is installed on the lower part of the side of a high vehicle, such as a van, truck, or bus, to prevent the vehicle from tilting due to the side wind that the vehicle receives while driving, and the side that receives the side wind is lifted and the driving becomes unstable. In particular, the present invention relates to a side spoiler device capable of being housed in a lower end movable portion of a spoiler and also serving as a roll-in prevention device.

[0002]

[Prior art]

 When a car receives a side gust, a large lateral force and rolling moment act on the car with a high overall height. Therefore, the side of a vehicle that receives a lateral force tries to float up and the course of the vehicle is disturbed. The phenomenon of one-sided wheel lifting due to this lateral force occurs more sensitively when the vehicle speed is higher and when the center of gravity is higher. Particularly in the case of vehicles such as trucks, vans and buses where the floor is high and the gap under the vehicle is large and the vehicle height is high, if a lateral gust is received during high-speed driving, the lower airflow will pass through the lower vehicle and rise above. The air flow in the area gives a large lateral force from the center to the upper part of the vehicle height, and there are not a few cases in which a rollover accident develops. Lateral force is always more dangerous than the drag and lift received from the front when a vehicle of high vehicle height travels at high speed. However, because it is a vehicle model whose purpose is to carry more passengers and cargo, the side projected area is made smaller like a passenger car, and many streamlined elements are incorporated into the body shape to prevent lateral force. Is limited. Therefore, in order to improve the aerodynamic performance during high-speed driving, especially the lateral force due to the side winds and the left and right wheel lift generated from the rolling moment to improve high-speed running stability, a large side wall that closes the gap at the bottom of the vehicle Spoilers are required. However, considering the fact that there are roads with bad conditions such as rough roads and uneven roads, the size of the road was limited due to the ground clearance and the ramp angle.

[0003]

[Problems to be Solved by the Invention] As described above, in the conventional side spoiler and body-type side panel, the distance from the road surface to the bottom of the side spoiler, that is, the size of the side spoiler is limited, so that high speed It was not possible to achieve the original lateral force countermeasure effect during driving.

As the position of the side spoiler is lower, the point of application of the lateral force is closer to the center of gravity, the rolling moment is smaller, and the height of the center of gravity moves to a lower position. Therefore, the lift on the left and right wheels is suppressed and the directional stability is improved.

Therefore, in the present invention, the side spoiler projects downward to exert a lateral force countermeasure effect during high-speed traveling in which lateral force and rolling moment sensitively affect the drivability of the vehicle, and during normal low-speed traveling, the side spoiler operates. It is intended to be stored so that the driver can drive safely even on rough roads and uneven roads.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the side spoiler device of the present invention is a spoiler side that also functions as a entanglement prevention device stipulated in Chapter 3-2 of the Road Transport Vehicle Act, Chapter 3, Safety Standards of Road Transport Vehicles. The back side of the panel is supported by the side spoiler body so that it can move up and down, and an operation and storage motor for protruding the side spoiler body downward and storing it on the back side of the spoiler side panel is fixed to the back side of the spoiler side panel. And a slider rail mechanism for guiding the operation and storage for transmitting the power of the motor to the main body of the side spoiler and for smoothly moving up and down the main body of the side spoiler.

[0007]

[Action]

 During normal low speed running, the side spoiler body is in the retracted position. That is, the side body of the side spoiler rises to the back side of the spoiler side panel and is stored, so the ground clearance is high and does not come into contact with the road surface even when traveling on a rough road or a step road.

When the vehicle for high-speed running is driven from this state, when the operation / storing motor is driven, the side spoiler body slides and projects below the spoiler side panel in conjunction with the link of the motor.

As a result, the ground clearance is lowered, and the original function of the side spoiler, that is, the lateral force countermeasure effect is sufficiently exerted. The side spoiler body will return to the retracted position by reversing the operating and retracting motor.

[0010]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall perspective view showing an embodiment of a side spoiler device according to the present invention, which is the entire device viewed from the back side. In the figure, 2 is a spoiler side panel attached to the side of the vehicle body, and 3 is a side spoiler main body that moves up and down by an actuating and retracting device A and an actuating and retracting guide rail rail B.

The spoiler side panel 2 and the side spoiler body 3 are made of a press-formed steel plate or a synthetic resin molded product containing urethane or fiber fiber. The base end of the slider rail main body 18 is fixed at several positions between the fixed bracket 5 and the left and right brackets at substantially equal intervals.

The slider rail mechanism B for actuating and retracting guidance, which has the slider rail main body 18 as a main component, is a guide mechanism for the side spoiler body 3 to accurately actuate and retract a certain stroke position, and at the same time, the side By sandwiching the spoiler body 3 between the spoiler side panel 2 and the slider rail mechanism for guiding the operation and storage, it also serves to suppress the rattling of the side spoiler body 3 and the force that tends to bend inward when lateral force is applied. ing.

Brackets 11 for rotatably supporting a link mechanism connected from the operation and storage motor 4 are fixed to upper portions of the left and right ends of the side spoiler body 3, and are provided at several places between the left and right brackets. The operation storage stopper pin 19 fitted in the guide hole 18a of the slider rail body 18 of the operation storage guidance slider rail mechanism B is fixed. The number of slider rail main bodies 18 is the same as the number of actuation storage stopper pins 19.

The spoiler side panel 2 and the side spoiler body 3 are integrated by an actuation storage device A and an actuation storage guide slider rail mechanism B.

The actuating / storing motor 4 fixed to the motor fixing bracket 5 has a proper speed reducing mechanism built in between it and the drive shaft 6, and the drive shaft 6 and the link lever 7 are fixed at their base ends. .

At the tip of the link lever 7, a link lever tip pin 9 (with a small hole into which a pin is inserted) projects, and penetrates through the small hole 10 at the upper end of the elevating link of the elevating link 8 to form a link lever side connecting portion. The flat washer 16 and the pin stopper 17 connect the lifting link 8 in a rotatable state.

The connecting pin 13 is passed through the small hole 12 at the lower end of the lifting link 8 of the lifting link 8 and the small hole 11a of the bracket 11 fixed to the side spoiler body 3, and the flat washer 16a for the bracket side connecting part and the pin fixing 17a is rotatably connected.

This constitutes a link mechanism. When the link lever 7 rotates upward, the side spoiler body 3 is stored up, and when the link lever 7 rotates downward, the side spoiler body 3 projects downward.

The slider rail mechanism B for guiding the operation and storage has a function of preventing the side spoiler body 3 from being displaced or rattling from a predetermined position during the operation and storage.

As can be seen in FIG. 5, the side spoiler body 3 is always sandwiched between the spoiler side panel 2 and the slider rail mechanism B for guiding the operation and storage.

A small bear ring 14 is incorporated on the side of the spoiler side panel 2 that contacts the side spoiler main body 3, and is pressed from the slider rail main body side by a rubber roller 20 attached to the slider rail main body 18. The sliding movement of the side spoiler body 3 and the rear surface of the spoiler side panel 2 do not directly contact with each other and scratches are prevented. Incidentally, the bearing 14 of the spoiler side panel 2 is always installed in a position where it cannot be seen from the outside and the rear side, because it is always in the operation storing process.

A guide hole 18 a for guiding the actuating storage stopper pin 19 fixed to the side spoiler body 3 is bored in the slider rail body 18.

For attachment to the vehicle body side surface 1, the spoiler side panel 2 is fixed by bolts near the uppermost portion, and the stay 15 for preventing tilting in the spoiler side panel is installed from the height of substantially the center of the spoiler side panel 2. One end is fixed to the bottle via the stay mounting bracket, and the other end is fixed to the frame side 1a of the automobile by bolting or welding.

In the above structure, the side spoiler main body 3 is in the retracted state as shown in FIG. 4 when the vehicle is at a low speed (for example, less than 80 km / h). In other words, since the side spoiler body 3 is stored on the back side of the spoiler side panel 2 while being raised, a sufficient ground clearance is secured and the ramp angle is large.

When the vehicle reaches a set high speed state (for example, 80 km / h or more), the actuating / storing motor 4 starts to rotate based on the detection signal, and the direction of the link lever 7 is lowered to a substantially vertical state. The side spoiler body descends due to the power of the link mechanism A that rotates and connects with the operation / storage motor 4 and the operation / storage guidance slider rail mechanism B for maintaining an accurate stroke.

At this time, the operation storage stopper pin 19 installed in the side spoiler body 3 stops at the lowermost position of the guide hole 18 a of the slider rail body 18.

The actuating / storing motor 4 has a built-in relay that determines the stop position for both lifting and lowering. The starting and ending points of the guide hole 18a of the slider rail main body 18 are set according to the vertical stop position of the link lever 7. It

The stop position of the side spoiler main body 3 at the time of downward protrusion is sufficiently low so that the force application point of the lateral force approaches the height of the center of gravity of the vehicle and is moved to a lower position to prevent the disturbance of running due to the lateral force. Descend to the position.

Therefore, when a side gust is received, the side spoiler device generates a side force by the air flow that collides with the vehicle from the central part of the side face to the upper part, and at the same time, passes the underside of the automobile to increase the side lift. By restraining it, the lateral force application point moves to a lower position and the rolling moment becomes smaller.

As a result, the wheel lift on the side receiving the lateral force is suppressed to maintain good balance, and an excellent lateral force suppressing effect can be obtained.

FIG. 8 shows the position and state of the lateral force applied point (aerodynamic center) and rolling moment in the vehicle equipped with the side spoiler device, and FIG. 9 shows the lateral force applied point and rolling of the vehicle in which the side spoiler device is not installed. The position and state of the moment are shown.

As described above, the fact that the side spoiler body 3 has reached the operating position is detected by a relay, a micro switch or the like (not shown), and the operation storing motor 4 is stopped.

When the vehicle speed decelerates below the set speed, the rotation of the operation / storing motor 4 reverses, and the side spoiler body 3 returns to the stowed position again. In this case as well, the operation / storing motor 4 is stopped by detection of a micro switch (not shown) or the like.

In addition, when there are many car accidents due to side gusts on general roads due to differences in regions and seasons, the detection speed is set so that the vehicle can operate at low speed (for example, 50 km / h to less than 80 km / h). It is possible to set in multiple stages.

[0035]

[Effect of device]

 As is clear from the above description, the side spoiler device according to the present invention is driven by high lateral force, which is one of the factors that develops into the most accidents during driving due to strong lateral force. In the above, the side spoiler body protrudes downward, and reversely uses the air flow that tries to increase the side lift by passing through the underside of the vehicle, preventing the center of gravity from moving to an unstable position. As a result, it is possible to secure the aerodynamic performance that prevents lift of the left and right wheels on one side and has excellent lateral force countermeasure effects.

At the same time, it is possible to sufficiently secure the ground clearance and the ramp angle, which are serious problems in practical use. In addition, since the ground clearance during storage is set to 450 mm, it can also be used as a roll-in prevention device defined in Article 18-2 of the safety standards for road transport vehicles, making it a groundbreaking safety product. It can be said that.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a side spoiler device as viewed from the back side.

FIG. 2 is an exploded perspective view of a main part of FIG.

FIG. 3 is a side cross-sectional view of the link splicing unit and the side spoiler main body when the side spoiler device is attached to an automobile in a projecting state.

FIG. 4 is a side cross-sectional view of a retracted state of a link mechanism portion and a side spoiler body when the side spoiler device is attached to an automobile.

FIG. 5 is a side sectional view of the slider rail mechanism for guiding the operation and storage.

FIG. 6 is an external view of a protruding state.

FIG. 7 is an external view of a stored state.

FIG. 8 is a diagram showing a lateral force force point (aerodynamic center) of an automobile equipped with a side spoiler device and the position and state of a rolling moment.

FIG. 9 is a diagram showing a position and a state of a rolling moment and a lateral force application point (aerodynamic center) of an automobile not equipped with a side spoiler device.

[Explanation of symbols]

 A operation storage device B operation storage guide slider rail mechanism 2 spoiler side panel 3 side spoiler body 4 operation storage motor 7 link lever 8 lift link 14 bearing 18 slider rail body 19 operation storage stopper pin 20 rubber roller

Claims (2)

[Scope of utility model registration request] 1. A spoiler side panel (2) having an upper edge portion installed on a lower portion of a side surface of a vehicle body (1), and a side spoiler body (3) supported so as to be able to move up and down on the back side of the spoiler side panel (2). And a link mechanism (6 to 13) connected to the operation storage motor (4) fixed to the back side of the spoiler side panel (2) and an operation for accurately supporting and guiding the operation storage process. Side slider (3) with the storage guide slider rail mechanism (B)
A side spoiler device that doubles as an entrainment prevention device, characterized in that it is operated up and down. 2. The side spoiler device according to claim 1, wherein the mechanism for actuating and storing the side spoiler body (3) comprises a rack and a pinion.