JPS60240552A - Rear wind guide device of car - Google Patents

Abstract

PURPOSE:To have the captioned device perform the function as a rear spoiler and the function of cleaning a rear window glass by swivelling, through remote control, the wind guide plate to a diagonally upward position to which the travelling wind points and to a diagonally downward position to which the travelling wind points along the rear surface of a car body. CONSTITUTION:During high-speed travelling, a pinion is rotated by means of a motor, and a link 16 is swivelled counterclockwise until it is engaged with a stopper 25. This swivels a wind guide plate 10 to a rear spoiler operating position (s). Accordingly, the travelling wind, flowing rearward along a roof panel 3, points diagonally upward like an arrow (a) due to the wind guide plate 10 and augments grounding force of the rear wheel. In rainy weather, when the link 16 is swivelled until it is engaged with a stopper 26, said wind guide plate 10 is swivelled up to a wiping operation position D. Due to this, the travelling wind is inclined diagonally downward along the surface of a back door glass 5 like an arrow (b) and wipes said surface. By providing an interval adjusting mechanism 31 on a connection part between a swivelling mechanism 12 and the wind guide plate 10, an assembling error and the like are absorbed to make swivelling of said plate 10 smooth.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a rear air guide device for a motor vehicle.

In conventional automobiles, as shown in Japanese Utility Model Application Publication No. 13939/1983, for example, in order to ensure rear visibility by blowing away raindrops, splash, dust, etc. adhering to the back door glass or rear window glass, It is known that a wind guide plate is disposed on the upper rear side of the vehicle body to deflect the wind flowing along the roof panel surface so that it flows along the back door glass or rear window glass surface. This will be explained in detail by taking a car equipped with a back door as shown in FIGS. This is a wind guide plate disposed in the vehicle width direction on the upper rear side of the back door frame 4, specifically, on the upper side of the back door frame 4. This air guide plate 6 has leg parts 7 integrally molded on both sides, and It is fixed to the door frame 4, for example, by welding. This air guide plate 6 is the back door 2
It is arranged approximately parallel to the roof panel, and its upper end protrudes slightly above the three surfaces of the roof panel, so that it captures a part of the wind that flows along the three surfaces of the roof panel when driving.
The sea urchin is deflected along the back door glass 5 surface and attached to the back door glass 5 surface.

However, in the conventional structure where force is applied, the function of wiping the back door glass 5 by the air guide plate 6 is achieved.

Lifting force is generated at the rear of the vehicle body in order to deflect the airflow diagonally downward, and this tendency becomes particularly pronounced when driving at high speeds, resulting in a problem that deteriorates driving stability.

Purpose of the Invention In view of the conventional situation, the present invention not only allows the surface of the back door glass and rear window glass to be wiped away by the driving wind when driving in the rain, but also increases the ground contact force of the rear wheels outside of rainy weather. It is an object of the present invention to provide a rear air guide device for an automobile that can function as a rear spoiler to reduce air resistance.

Structure of the Invention In order to achieve the above-mentioned object, in the present invention, a wind guide plate is disposed in the vehicle width direction at the upper rear part of the vehicle body, and both ends of the wind guide plate are rotated to the vehicle body through ball joints. A position where the air guide plate is movably mounted between the substantially central portion of the air guide plate and the vehicle body and allows the air guide plate to direct the running wind diagonally upward by remote control from the passenger compartment side.

A rotating mechanism is installed along the rear surface of the vehicle body that operates at a position that points diagonally downward, and at the connection between the rotating mechanism and the air guide plate, the distance between the air guide plate and the vehicle body can be expanded or contracted. It is equipped with a spacing adjustment mechanism.

Embodiments Hereinafter, embodiments of the present invention will be described in detail using a back door type vehicle as an example, with reference to the drawings and with the same reference numerals given to the same parts as in the conventional structure.

In FIGS. 3 to 8, IO indicates a baffle plate, and both ends of the baffle plate 10 are connected to pole joints 11 and 1 on both sides of the rear of the vehicle body, for example, on both sides of the upper side of the back door frame 4.
It is rotatably mounted via 1.

The hole joint 11 is provided horizontally protruding from a socket 33 fixed to the lower surface of the air guide plate 10 with screws 40 and a bracket 37 fixed to the back door frame 41C with screws 39, and is fitted into the socket 33 at the tip via a bush 36. It consists of a supporting shaft having a matching spherical part 35.

A wave washer is mounted between the bracket 37 and the socket 33 to prevent looseness between the support shaft 34 and the socket 33. Reference numeral 12 denotes a substantially central portion of the air guide plate 10, which is located between the back surface of the air guide plate 10 and the back door frame 4.
A rotation mechanism disposed between the spoiler action position S, which directs the wind flowing along the three surfaces of the roof panel diagonally upward, and the spoiler action position S, which directs the wind flowing along the roof panel three surfaces, It is rotated to a wiping action position D where it is directed diagonally downward along the back door glass 5 surface. This rotation mechanism 12 is
It is roughly composed of a link mechanism 14 and a gear mechanism 15 disposed within a casing 13 fixed to the back door frame 4 with screws 41'. The link 16 is rotatably attached to the casing 13 by a support shaft 16a, and has a pin 17 projecting from its free end. Similarly, the link 19 is connected to the support shaft 19.
It is rotatably attached to the casing 13 by a,
A guide slit 20 is provided extending from the free end to a substantially central portion of the length, and the bin 17 is slidably engaged with the guide slit 20 and connected to the link 16. Another link 21 is attached to the support shaft 21 in the upper end of the casing 13.
a It is attached rotatably from Vc, and this lick 2
1 and the link 19 are connected by a link 22. Both ends of the support shaft 21a of the link 21 protrude outside the casing 13, and an arm connected to the baffle plate 10 is fixedly attached thereto.

The gear mechanism 15 is attached to the casing 13 by a gear 18 formed on the peripheral edge of the shaft support side of the link 16 and a support shaft 241L and meshes with the gear 18, and is connected to a remote control mechanism 2 described later.
The rotation of the link 16 is transmitted to the arm 23 via the links 19, 22, and 21, and the baffle plate 1o is moved to the spoiler action position S as described above. , wiping action value ltD. Stoppers 25 and 26 for regulating the rotation of the link 16 are protrudingly provided on the casing 3, and when the link 16 engages with these stoppers 5 and 26 and stops, the baffle plate 1O performs the spoiler action. It is prevented from rotating beyond the position or the wiping action position. The links 16 and 19 are the links 16 and 19 when the baffle plate IO is in the spoiler action position and the wiping action position.
The axis line 0. which connects the center of the support shaft L61L and the center of the bottle 17. , the center of the support shaft 19 a of the link 19 and the guide slit 20
The axis 0. which connects the center, that is, the center of the bottle 17. and are arranged so that they form a substantially right angle.

Reference numeral 27 indicates a remote control mechanism, and in this embodiment, it is a combination of a motor 4 and a rotation transmission cable 29, which are driven by the operation of a switch placed in a part that is most easily operated by the driver, such as an instrument panel in the vehicle interior (not shown). I am using it. The motor A is disposed within the bank door frame 4, and a rotation transmission cable 29 is routed within the back door frame 4 and is connected to the rotating shaft 30 of the motor and the spindle 24a of the binion U. It is. The outer tube 29 & the socket portions 29 b at both ends of the cable 29 are screwed into the protruding boss portion 28 & of the rotary shaft 30 of the motor and the boss portion 13 a through which the support shaft 24 a of the casing 13 is inserted.

On the other hand, at the connecting portion between the baffle plate 1o and the rotating mechanism 1s12, there is a space between the baffle plate 10 and the center of rotation of the rotating mechanism 12, that is, the center of the support shaft 21a to which the arm device is fixed. A space adjustment mechanism 31 is provided to freely adjust the distance.

In this embodiment, this interval adjustment mechanism 31 is formed by molding a small piece part 23a in a stepped manner at the tip of the arm device, and by forming an insertion hole tOa on the back surface of the air guide plate 1°, and inserting a small piece into the insertion hole 10a. Part 2
3a are inserted and engaged so that they can move forward and backward, and the small piece 23 of the arm 23 and the baffle surface of the air guide plate 10! A spring 32 is elastically mounted between the L-shaped base and the L-shaped base.

In this way, both ends of the baffle plate 100 are connected to the back door frame 4 via the ball joint 11, and the interval adjustment mechanism 31 is installed at the connection between the rotation mechanism 12 and the baffle plate IO.
By arranging the pole joints on both sides due to assembly errors, molding errors, etc.) 11, the support shaft 34 of 11,
34 center and the rotation center of the rotation mechanism 12, that is, the arm 2
It is difficult to accurately align the centers of the spindles 21a to which the ball joints 11 and 3 are fixed, but even if the centers are not aligned, the rotatability of the ball joints 11 and the spacing adjustment mechanism 31 (that is, the distance between the center of rotation of the rotation mechanism 12 and the baffle plate 10 can be changed in a freely expandable/shrinkable manner). The plate can be rotated smoothly, and the spring 32 allows the arm 2 to rotate smoothly.
3 and the baffle plate 10 can be suppressed from floating, and a photographic absorption effect can be obtained.

Next, the operation of the embodiment device having the above structure will be explained.

When driving at high speed even in sunny or rainy weather, operate the remote control mechanism 270 switch (not shown) to the spoiler position, rotate the motor forward, and engage the pinion 24 and the lever 16 with the stopper 25. Rotate counterclockwise as shown in Figure 8. The counterclockwise rotational force of the link 16 is transmitted to the arm n via the links 19, 22 and 21, thereby rotating the baffle plate 1o to the spoiler operating position S and stopping it. Therefore, the wind flowing backward along the roof panel 3 is directed by the wind guide plate 10 as indicated by the arrow a in FIG.
The air guide plate 10 is oriented diagonally upward as shown in , and functions as a rear spoiler to increase the ground contact force of the rear wheels, ensuring running stability and reducing the air resistance value. You can also do it.

In rainy weather, the aforementioned switch is operated to the deflector position to reverse the motor 28. According to this, the link 16 is rotated clockwise until it engages the stopper 26, and this rotation is caused by the links 19, 2
2 and 21 to the arm 23, and the wind guide plate 10
Rotate to the wiping action position and stop.

Therefore, a part of the wind flowing along the surface of the roof panel 3 is captured by the baffle plate 10 and deflected diagonally downward along the surface of the back door glass 5 as already indicated by the arrow in FIG. Raindrops and splashes adhering to the five back door glass surfaces can be blown away to keep them clean, ensuring rearward visibility for the occupants.

In addition, when driving at medium to low speeds in urban areas even on sunny days, the wind guide plate lO is rotated to the wiping position.

If it is stopped, dust can be prevented from adhering to the back door glass 5 surface.

Here, the baffle plate 10 is at the spoiler action position S described above.

Link 1 in any of the wiping action positions.
Since the axis 01 of the link 6 and the axis o of the link 19 are substantially perpendicular to each other, the following advantages can be obtained. That is, the air guide plate 1
When 0 is at the spoiler action position, this baffle plate 10 receives a pressing force P in the clockwise direction in FIG. 8 due to the traveling wind.

This pressing force P acts as a biasing force on the link 19 in the counterclockwise direction in the figure through the arms 21 and 22, but this biasing force is applied to the link 16 along the axis 0. There is no rotational moment acting on the link 16. On the other hand, when the baffle plate 10 is in the wiping action position #LD, a counterclockwise pressing force P acts on the baffle plate 10, contrary to the above, and acts on the link 19 as a clockwise biasing force. . However, in this case as well, the biasing force acts on the link 16 in the direction of the axis 01,
No rotational moment acts on the link 16.

As a result, even if the baffle plate 10 is tilted to the spoiler action position [S, the wiping action position], the rotating mechanism 12 does not move due to the wind pressure of the vehicle, and the set position of the baffle plate 10 is determined. It is possible. Further, the link 16 and the link 19 are connected via the pin 17 and the guide slit 20, and the structure is such that the movement of the link 19 in the vicinity of the starting and stopping positions is decelerated, so that very smooth operation can be obtained.

In addition to the above-mentioned remote control device 1127, a combination of an operating lever disposed near the driver's seat in the vehicle interior and a Bowden cable pulled and pushed by this operating lever can be used; in this case, As the inch wire of the Bowden cable, a guard wire that meshes with the peripheral gear of the link 16 may be used so that the link 16 can be rotated by pulling or pushing the guard wire. Also, as the gear mechanism 15, links 21 and 22 are omitted and link 1 is used.
It is also possible to fix the binion coaxially to the arm 23 and coaxially fix the sector gear or the binion to the arm 23 so that these gear members mesh with each other.

Furthermore, it goes without saying that the present invention can be applied to not only back-door type cars but also four-door type cars, in which case the air guide plate is attached to the rear end of the roof panel or the upper end of the rear cabin, and the rear surface of the vehicle body is attached to the rear window glass. Become.

Effects of the Invention As described above, according to the present invention, the air guide plate can be arbitrarily selected and used as a rear spoiler and as a dirt prevention device for the rear surface of the vehicle body such as a back door glass or a rear window glass.

It is possible to solve the conflicting problems of improved rear visibility, reduced rear wheel ground contact force, and increased air resistance, further improving safety and driving performance. Moreover, assembly errors and molding errors 2
Even if the support points at both ends of the baffle plate and the center of rotation of the rotation mechanism are not aligned in line due to dimensional tolerances, the stick phenomenon does not occur in the rotation of the baffle plate, ensuring smooth operation. This has a great practical effect.

[Brief explanation of the drawing]

FIG. 1 is a rear perspective view of an automobile equipped with a conventional device, FIG. 2 is a cross-sectional view of the same essential parts, FIG. 3 is a rear perspective view of an automobile adopting an embodiment of the present invention, and FIG. Figure 5 is a cross-sectional view of the ball joint, Figure 6 is a cross-sectional view of the interval adjustment mechanism, Figure 7 is an exploded perspective view of the rotation mechanism, and Figure 8 is an explanatory diagram of its operation. It is. 1... Vehicle main body, 2... Back door, 5... Rear surface of vehicle body (back door glass) %10... Wind guide plate, 11.
...Ball joint, 12...Rotation mechanism, 27...
- Remote control mechanism, 31... Interval adjustment mechanism, S... Spoiler action position, D... Wiping action position. Figure 5 1n Figure 6

Claims (1)

[Claims] (1) A wind guide plate is placed in the vehicle width direction on the upper rear part of the vehicle body,
Both ends of the air guide plate are rotatably attached to the vehicle body via ball joints, and the air guide plate is installed between the approximate center of the air guide plate and the vehicle body by remote control from the vehicle side. A rotating mechanism is installed at the connection between the rotating mechanism and the wind guide plate, and a rotating mechanism is provided to operate the wind direction in a position where the wind is directed diagonally upward and a position where the wind is directed diagonally downward along the rear surface of the vehicle body. 1. A rear air guide device for an automobile, characterized in that a space adjustment mechanism is provided to freely expand and contract the space between the air guide plate and the center of rotation of the rotating mechanism.