JPS60163772A - Rear spoiler for car - Google Patents

Abstract

PURPOSE:To enable stable change of a course, by a method wherein, in a rear spoiler which is disposed to the rear of a car body and provided with a pair of rotatable vertical blades, when a pair of the vertical blades are swung, the rotary angles of the vertical blades are caused to differ from each other. CONSTITUTION:A pair of vertical blades 6, located in juxtaposition with each other at a distance in the direction of the width of a car, and a horizontal blade 8, spanned between the upper ends of the two vertical blades 6, are located to the rear of a car body. The horizontal blade 8 has its opposite ends secured to a stand 10 of lifter 9 through the medium of a cylindrical frame body 11, and is constituted such that it can be vertically swung by means of an arm 23 swung through gear trains 15, 16, a vertical shaft 12 inserted into a frame body 11, and gear trains 19, 18 with the aid of a motor 14. The vertical blades 6 are constituted such that they are pivotally secured to the frame body 11, and the vertical blades 6 can be respectively horizontally swung at different angles from each other through large and small notched gears 21 and 30, combined reversely with combination between the vertical blades 6 on both sides, by means of a toothed belt 33 moved around through driving of a motor, not shown.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention aims to strengthen the directional stability of an automobile when it is running. The present invention relates to an automobile glue boiler that can effectively perform aerodynamic functions to ensure the directional stability of vertical blades.

When a car is running at high speed, airflow is generated from the front of the car to the rear. Is this air flow divided into the upper and lower parts of the car body? ＞In
As a result, the car body is subject to buoyant force from the airflow in the same way as the wing cross section, and in order to suppress this, horizontal wings long in the car width direction are installed at the rear of the car body, and these horizontal wings reduce the flow of air around the car body. On the other hand, the air flow not only pushes down the car body, but also increases the ground contact force. On the other hand, when the car body is hit by a crosswind while traveling straight, the car body is often subjected to a shaking moment that changes the yaw angle along a vertical center line that passes through the 70-fold flood in plan view. This moment impairs the directional stability of the vehicle body, and to prevent this, vertical wings are installed at the rear of the vehicle body. When a vertical wing is tilted, it receives a pushing force greater than 2 mm/cm from the total airflow, which always returns the vehicle body to the straight direction. On the other hand, if the vertical wing is installed in a direction that intersects the longitudinal direction of the vehicle body, the vehicle body receives a swinging moment from the airflow that changes the traveling direction in the direction in which the rear end of the vertical wing swings, and changes its course in that direction.

In this way, the automobile glue boiler plays an aerodynamically effective role in ensuring the directional stability of the vehicle body during high-speed driving. By the way, as disclosed in Japanese Patent Publication No. 47-50291, the conventional vertical wings have a constant direction and simply ensure straight-line stability of the vehicle body. Assist with steering wheel operation,
It is considered to be used as a means to cancel the shaking moment l that is applied to the vehicle body due to crosswinds. However, a pair of vertical wings are installed in the width direction of the vehicle, and they are swung and held in the same way.
When acting like a rudder on an airplane, the same airflow does not act on each vertical wing when subjected to crosswinds. That is, when the vehicle body 1 traveling in the direction A receives a lateral rut W as shown in FIGS. is in the shadow of the roof 2 and receives relatively little air flow. Moreover, in this case, the roof 20
Due to the size, height difference, and other peculiar effects of the shape, the air flow differs greatly between the left and right sides. For this reason, when a pair of vertical wings are swung left and right by the same amount and held at the same rotation angle α, the pressing force F that the vertical blades receive differs greatly on the left and right sides, and the side that is in the shadow of the roof against crosswinds. Vertical J! , 4(
In the case of a crosswind from the right side, the airflow received by the vertical R6 tends to decrease, and there is an inconvenience that the pressing force exerted by the pair of left and right vertical wings from the airflow becomes unbalanced.

In the present invention, a pair of vertical IIIi wings arranged in parallel in the vehicle width direction are both
An object of the present invention is to provide an automobile glue boiler that can efficiently receive pressing force from airflow.

The automobile glue boiler according to the present invention is characterized in that when a pair of vertical blades arranged in parallel in the width direction of the vehicle are oscillated in the same direction, the angles of each vertical blade are made to differ by 1lij.

Furthermore, the automobile glue boiler according to the present invention is provided with a pair of vertical blades arranged in parallel in the vehicle width direction, and the rotation angle of one vertical blade that swings toward the outside of the vehicle body is the same as the rotation angle of the other vertical blade that swings toward the inside of the vehicle. It is assumed that the rotation angle of the vertical wing is set to be greater than the angle of rotation of the vertical wing.

Furthermore, the automobile glue boiler according to the present invention includes a pair of vertical blades arranged in parallel in the vehicle width direction B, and the rotation angle of one vertical blade that swings toward the inside of the vehicle body is the same as that of the other vertical blade that swings toward the outside of the vehicle body. It is characterized by being set larger than the rotation angle of the vertical wing.

The present invention will be described below with reference to the accompanying drawings.

Figure 2 (a) shows a car body 5 attached to an automobile glue boiler (hereinafter simply referred to as a rear spoiler) as a practical example of the present invention. The rear spoiler is circumference, figure 6 and figure 1.
・As shown in Figure 4, a pair of Tsumugi Naokyo 6 and 7 are arranged at the rear of the vehicle body 5 and are arranged in parallel in the vehicle width direction B, and a horizontal wing 8 is constructed over the upper end of the side stones and bicycles. Equipped with The horizontal plate 8 has a pair of fixed parts 801 at both ends and a pair of tilting parts 80 on the left and right sides.
It is formed by 2.

Each fixing part 8U1 is a lifter shown in Fig. 4 and Fig. 7. It is fixed to a stand 10 via a cylindrical frame 11.

The frame 11 has a vertical shaft 12 and a rotating shaft 16 concentrically fitted therein (see Figure 5). A worm wheel 16 and a worm 19 for rotating a worm wheel 18 on a horizontal shaft 17 are respectively attached to the upper end.The horizontal shaft 17 is pivotally supported by a fixed part 801K via a bearing 20, and an arm 26 is attached to the end thereof. The pin 24 at the rotating end of the arm engages with one of the tilting parts 802K.The left and right fixing parts 8[11 are made symmetrically, and the two parts are connected via the horizontal movement 25. Both parts 802 are pivotally connected to this horizontal shaft 25, and each arm 25
The 0 rotation allows rotation from the low speed position to the high speed position K (the position shown by the chain line in Figure 8). On the other hand, the pair of vertical wings 11 are pivotally connected to the frame 11 with their front and rear ends facing in the longitudinal direction C of the vehicle body, and their lower ends are integral with the frame 14 and are vertically centered vertically and horizontally. Shaft 12, rotation axis 16 and frame 1
1 are installed coaxially. The rotation shaft 13 is located at the top thereof.
A beautiful projection piece 27 is integrally attached to the vertical wing 6, and a pair of notched gears 21 and 22 are integrally attached to the lower part.

As shown in Fig. 9, the pair of notched gears 21 and 22 form a part of a vertical blade actuating means 28 that generates a rotation angle difference and swings the left and right pair of vertical blades 6.7 in the same direction. do. That is, the vertical blade actuating means 28 operates the pair of straight blades 6 and 7 in the direction of the solid line or in the direction of the broken line, with the reference position being a position offset by an angle θ toward the vehicle body 11Ill with respect to the longitudinal direction C of the vehicle body. let The large notch gear 30 and the small notch gear 51, which are attached integrally with the left rotation shaft 13Vc, mesh with each other. This left drive shaft 29
A drive gear (see Figure 7) 62 is integrally attached to the lower part of the drive gear Ipii, i
A J motor 64 is connected. NajN, number 65 in the fang 9 diagram
indicates a pressure roller. The drive motor 64 is supported by a horizontal plate 66 installed between the left and right stands 10, as shown in FIG. By the way, the small notch gear 21 and the large notch gear 30 that mesh with the small notch gear 21 rotate an appropriate amount in the direction indicated by the broken line, but teeth are formed only between them and not in other parts. On the contrary, the large notch gear 22 on the lower side and the small notch gear 61 that meshes with it rotate an appropriate amount in the direction indicated by the solid line, but teeth are formed only between them, and there are no teeth in the other parts. Not formed. The four single rows of notch teeth and the symmetrical single row of notch teeth actuate the right vertical wing 7. Therefore, when the gear 66 directly connected to the drive motor 64 rotates and moves the toothed belt 66 in the direction of the broken line, the small notch gear 51 rotates, the large notch gear 60 rotates the small notch gear 21, and the small notch gear 60 rotates to the left. The vertical wing 6 of the is rotated from the reference position in the direction indicated by the broken line. At this time, since the combination of the left and right large and small notch gears 21 and 30 is reversed, the left vertical wing 6 swings more thickly than the right vertical wing 7 in the direction indicated by the W line, and is held just before the meshing portions of each other disengage. be done. Conversely, when the drive motor 64 rotates in the opposite direction and moves the toothed belt 63 in the solid line direction, the large notched gear 60 idles, the small notched gear 31 rotates the large notched gear 22, and the left vertical wing 6 etc. Rotate from the reference position in the direction indicated by the solid line. At this time, the left vertical wing 6 swings smaller than the right vertical wing 5K7 in the direction indicated by the solid line and is held.

As shown in Figures 4 and 7, the lifter 9 includes a pair of guides 68 fixed to a floor plate 67 of the vehicle body, and a stand 10 attached via rollers 69 to a pair of vertical holes 681 formed in the guides. , a worm and a worm gear train 44 are connected to the lift motor 40 which is pivotally supported across the left and right stands and is attached to the left stand 10Vc.
It is formed of a mouth/throat 41 which receives rotational force through the rod, and a binioff gear 43 which is fixed to both ends of this rod and meshes with a rack 42 on a guide 68. Therefore, when the lift motor 40 rotates, the pair of stands 10 and the horizontal plate 36 move together with the vertical blades 6, 7 and the horizontal blade 8 between the daytime speed position P1 shown in Fig. 4 and the low speed position PO shown by the two-dot chain line. Move up and down.

The pair of tilt motors 14, drive motors 34, and tilt motors 4U are each operated by respective drive circuits (not shown) that operate in response to commands from the control unit 450. This control unit 45 includes a microcomputer, and as shown in FIG. 12, a vehicle speed sensor 46,
Brake sensor 4 outputs an ON signal when the brake is operated
7. An accelerator sensor 48 that outputs an on signal when the accelerator is released, and an accelerator sensor 48 that is attached to the left and right sides of the vehicle body 1.
A digitized input signal is received from a lateral louse sensor 49 consisting of a manometer.

The control unit 45 controls the vehicle speed or a set value (for example, 6
0 Km/h), a lift signal is output,
Activate the lift motor 40 to move each member on the stand 10 from the low speed position PO to the high speed position P1,
Hold. Conversely, when the vehicle speed falls below the set value, a down signal is output, and the lift motor 40 is rotated in the reverse direction to return both wings etc. to the low speed position.

Next, when the vehicle speed exceeds the set value, the crosswind sensor 49 sends a signal to the control unit 45, for example, to confirm that the crosswind is being received from the left side and its level as shown in Figure 2 (a). Enter that the value exceeds the set value. In this case, the control unit 45 preprocesses a map of basic control values of the swing direction and rotation angle α corresponding amount of the vertical blade 6 corresponding to the level of the crosswind W in a memory (not shown). The value obtained thereby is further corrected according to the vehicle speed. After processing in this way, the drive motor 64 is rotated according to the rotation angle corresponding amount (this value is the value of the rotation amount of the drive! 1↓b mork 54), and the right vertical wing 7, which is the left type 1 section wing, is rotated. Hold with a large rotation angle. Note that when a crosswind is received from the right side 1, the left vertical wing 6 is held at a smaller rotation angle than the right vertical wing 7.

By the way, when the control unit 45 receives an ON signal from the brake sensor 47 or the accelerator sensor 48 while driving at high speed, the control unit 45 operates the left and right tilting motors 14, and the pair of tilting motors 1112 are decelerated by the tilting angle β shown by the two-dot chain line in FIG. Hold in digits.

When a car equipped with such a Yassu boiler is running, at low speeds of 61 J Km/h or less, the horizontal blade 8 holds its upper surface in a position along a continuous curve from the roof side of the car body 1, so the rear spoiler moves backward. There is no way to reduce visibility. On the other hand, when driving at high speed, the rear spoiler is held at the screening speed position P1, and in this case, the horizontal blade 8
obtains the downward force from the airflow that prevents the car body from lifting up. Moreover, the two wings 6.7 at the reference position ensure straight-line stability of the vehicle body. In this case, when the vehicle body 5 receives a crosswind, the vehicle body 5 receives a swaying motor around its center of gravity 0. At this time, LO is the length between the center of gravity G and the line of action).

As a result, the vehicle body 5 would normally sway as shown by the two-dot chain line in Figure 1 (, ), but here the control unit 45 adjusts the rotation angle to the optimum angle according to the horizontal direction and level of the crosswind W and the vehicle speed. Based on the value VC, the left and right vertical wings were calculated to be 6.7.

Make a small rotation. As a result, the left vertical wing R6 receives a pressing force SF from the airflow, and the left vertical wing 7 also receives a pressing force sr from the airflow, that is, a return moment that cancels the swinging moment M)
Both image straight lines 11 receive M effectively from the airflow. In addition, component force SF1 of SF and point of action distance L1
, component force SF' of SF' 1 and point of action distance II L2
The sum with the product of is the return moment -M. This eliminates the influence of crosswinds on the vehicle body 1 and automatically ensures stability in all directions.

As described above, the rear spoiler according to the present invention can obtain directional stability of the vehicle body from airflow by swinging its vertical wings. In particular, as shown in Figure 2 (a), in the case of a left side crosswind, by reducing the rotation angle α of the right vertical wing 7 that shadows the roof R, the air flowing relatively along the right side of the roof can be reduced. It can receive the flow a, and can receive a relatively large pressing force SF' applied to the right vertical wing 7. Furthermore, since such effects are based on the unique shape of the unit, it is necessary to determine through experiments, etc. whether it is better to reduce the rotation angle toward the inside of the vehicle body and increase the rotation angle extending outside the vehicle body. Bye. In particular, as shown in Figure 2 (a), the roof R
If the width of the vertical wing actuating means 2 shown in Figure 9 is relatively small and the distance between the two straight lines 6.7 is sufficiently large compared to this,
8 can be used effectively. Hatchet, 1ti outside the vehicle!
In place of the vertical blade actuating means 28 for making the rotation angle toward the inner side 1 larger than the rotation angle toward the inner side 1 of the vehicle body, a vertical blade actuating means 51 of the Phnom Yupurwaya type described later may be used. In this case, each wire and the lever may be connected in the opposite manner to the case described later.

Figure 2 (D) shows a car body 50 to which a glue boiler is attached as another example of the present invention. This car body has roof R
The width is relatively thick, and the distance between the two types of iM blades 6.7 installed on the Yasu boiler is relatively small. The Riyasu boiler explained here is shown in Figure 2 (a).
In place of the vertical blade actuating means 28 of the Yasu boiler explained in
Except for using the vertical blade actuating means 51 shown in Fig. 10, all the components are the same as those of the paste boiler in Fig. 2 (a), so in the following explanation, the vertical blade actuating means 51 will be mainly explained to avoid redundant explanation. do.

The boiler shown in Figure 2 (b) has the same horizontal blade 8 as shown in Figure 4, a pair of vertical blades 6 and 7, a lifter 9, the vertical blade operating means 51 in Figure 10, and the same blade as shown in Figure 12. A control unit 45 is provided.

The vertical blade actuating means 51 includes a drive motor 54, a pinion 54 directly connected to the VC, a rack 56 meshing with the pinion 54 and attached to the body 52 in a sliding manner, and a pair of left and right pull rods that are engaged with and pulled by the ends of the rack. 57°59 and
A pair of left and right bushing rods 58 pressed against the same rack end
．． 60, a lever 55 that rotates integrally with the left vertical wing 6, a pull rod 57, and a shoe/nibble wire (hereinafter simply referred to as a wire) that connects each of the pull rods 57 and 58.
Y, as well as the pull rod 59 and bush rod 60
and a wire Y connecting the right vertical wing 7 and the integral lever b6vc, respectively. Note that both the straight arms 6 and 7 of both hands are formed to have relatively large lengths in the vertical direction. Furthermore, the wire is composed of an inner cable part and a pipe part fitted onto the inner cable part, and is capable of transmitting pressing force and tensile force. When receiving a crosswind W from the left, the drive motor 64 is activated and rotates in the direction of the broken line, and the rack 53 also moves in the direction of the broken line.

Then, the bushing rod 58 swings the left vertical wing 6 out of the vehicle via the lever 55, and at the same time, the pull rod 59 swings the left vertical wing 6 out of the vehicle via the lever 55.
Shake the right vertical noon 7 to the inside of the car. (Refer to Fig. 2 (b)) At this time, the lever 550 action point f1 is larger in distance from each rotation center point 0 than the lever 560 action point f2.
The amount of operation becomes smaller, and the left vertical wing 6 has a smaller rotation angle than the right vertical wing N7. In this case, the crosswind from the left tends to be relatively difficult to act on the right vertical wing 7 which is in the shadow of the roof R, but the wing 6.7 is of both types and Because of its large height, it tends to receive air flow that goes over the roof R. For this reason,
Since the vertical wing 7 with the crest 11 is held at a large rotation angle relative to the left side, the pressing force 1 exerted by the right vertical I wing 6 is reduced as a result.
3F Receives a pressing force SF' close to K. As a result, the crosswind W
Return moment that cancels swing moment M due to K) -1,
The directional stability of the car body is ensured because each vertical wing 6°7 receives all the airflow. In addition, when a crosswind is received from the right side 1, all the above-mentioned operations can be performed symmetrically.

This spear 2 figure (o) K is shown, and Yasuboira is also tusk 2 figure (a)
Similarly to what is shown in K, in order to prevent the pressing forces received by the pair of left and right vertical wings 6 and 7 from being greatly biased from left to right, the viewing angles of each wing are set to be different, thereby creating an anobalance of the left and right pressing forces in the light. Measures can be taken to prevent this.

The vertical wing actuating means 11 shown in FIG. Figure 2 (a
) To set the rotation angle of the vertical blades that swing toward the outside of the vehicle body to be larger than those of the vertical blades that swing toward the inside of the vehicle body, such as in a glue boiler, move the left and right valley pull rods 57 to the rack 56 as shown in Figure 13. 59 and Puseonyurondo 58 and 60 can be exchanged vertically, and this can be used in place of the vertical wing actuating means 28 shown in Fig. 9.

In this way, by varying the rotation angles of the left and right vertical wings 6 and 7 according to the shape of the car body, the left and right vertical wings 6 and 7 can be returned to the car body without being biased, allowing them to work together as sources of M) in a well-balanced manner. Available. Furthermore, in the above description, the left and right vertical wings were operated based on the input signal of the lateral roach sensor 49, but this is not limited to this, and they may be operated in response to the amount of rotation of the steering wheel (not shown). and left and right vertical y
Similar effects can be obtained when using the open side method 1 in which the steering wheel is operated 1 dH in the same way as the rudder.

1j11 Simple explanation of the above Figure 1 is an explanatory diagram of the operation of a conventional glue-boiler, and Figures O and 2 (
a) and (b) are explanatory diagrams of the functions of the different rear spoilers of the present invention, Fig. 3 is a plan view of the main part of the paste boiler shown in Fig. 2 (a), and Fig. 4 is a side sectional view of the main part of the same upstream boiler. Figure 5 is a cross-sectional view of the vertical blade blade of the same upstream boiler, Figures 1 and 6 are plan views of the horizontal blade operating system of the same upstream boiler, Fang 7 is an exploded perspective view of the lid of the same upstream boiler, and Fang 8 is a is an explanatory diagram of the operation of the horizontal blades of the same upstream boiler, Figure 9 is a plan view of the vertical blade operating means of the same upstream boiler, and Figure 10 is the diagram of Fang 2 (b).
) Schematic layout of Nori Yasu boiler, Fang 11 is Fang 2 (b
) A cross-sectional plan view of the vertical blade actuating means of the Nori Yasu boiler, fang 1
FIG. 2 is a block diagram of a control system used in the glue-boiler according to the present invention, and FIG. 16 is a plan view of the main part of the vertical blade operating means used in the glue-boiler according to another embodiment of the present invention.

1... Vehicle body, 6, 7... Vertical wing, 28.51...
Vertical blade actuation means, B...vehicle width direction, α...rotation angle,
l...Rotation center line

Claims (1)

[Scope of Claims] 1. A pair of vertical wings are provided at the rear of the vehicle body and are arranged in parallel in the vehicle width direction, and the vertical wings swing appropriately in the vehicle width direction along the rotation center line of the vertical wings. An automobile glue filet boiler which is held in such a manner that when the pair of vertical blades are oscillated in the same direction, the rotation angles of the valley vertical blades are made different. 2. An automobile seat that is provided with a pair of vertical wings arranged at the rear of the vehicle body and arranged in parallel in the vehicle width direction, and that swings and holds the vertical wings appropriately in the vehicle width direction along its rotation center line. An automobile seaweed boiler characterized in that the rotation angle of one vertical blade that swings toward the outside of the vehicle body is set to be larger than the rotation angle of the other vertical blade that swings into the vehicle body. 3. An automobile seat that is provided with a pair of vertical wings arranged at the rear of the vehicle body and arranged in parallel in the vehicle width direction, and that swings and holds the vertical wings appropriately in the vehicle width direction about its rotation center line. An automobile seaweed boiler characterized in that the rotation angle of one vertical blade that swings on the inside of the vehicle body is set larger than the rotation angle of the other vertical blade that swings toward the outside of the vehicle body.