JPS6127743A - Device for introducing air to rear portion of automobile - Google Patents

Abstract

PURPOSE:To improve a field of rear view and eliminate the reduction of pressure of ground contact of rear wheels by using selectively at will an air introducing plate both for a rear spoiler and a device for preventing a back door glass from stain. CONSTITUTION:A drive mechanism 26 is driven in high speed by a control switch to pivot an air introducing plate 10 to a spoiler operating position S through a gear mechanism 15 so that travelling wind is directed obliquely upward by the air introducing plate 10 as shown by the arrow a and the air introducing plate 10 functions as a rear spoiler. In rainy day when the air introducing plate 10 is pivoted to a wiping position D, a portion of the travelling wind is caught by the air introducing plate 10 to be deflected obliquely downward along a back door glass 5 surface as shown by the arrow b and blow off rain drops and splash for maintaining the back door glass surface clean.

Description

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

In the case of conventional technology automobiles, for example, 18989
As shown in the publication, / (a roof on the upper rear side of the vehicle body to blow away raindrops, splash, dust, etc. that adhere to the door glass and rear window glass and ensure rearward visibility) It is known that a wind guide plate is provided to deflect the wind flowing along the vehicle so that it flows along the door glass or rear window glass surface.

To explain this in detail with reference to FIGS. 6 and 7, I indicates the vehicle body, 2 indicates a back door located at the rear opening of the vehicle body L, and 6 indicates the rear upper part of the vehicle body. This is an air guide plate arranged in the vehicle width direction on the upper side of the back door frame 6. This air guide plate 6 has legs 7t integrally molded on both sides, and the legs 7 are fixed to the packed frame 7 by welding, for example. I'll do it. This baffle plate t is disposed approximately parallel to the back door λ, and its upper end protrudes slightly above the surface of the roof panel 3 so that the air guide plate t is tilted upwardly when driving.
Capture some of the wind flowing along the back door glass! It is deflected along the surface and exerts a wiping function to blow away raindrops, splash, and dust adhering to the back surface, ensuring sufficient rearward visibility for the occupants.

Departure F! Problem that A aims to solve However, with the conventional structure of the cover, while the function of wiping the back door glass I by the wind guide plate B is obtained, a lift force is generated at the rear of the vehicle body to deflect the wind diagonally downward. Particularly when the vehicle is running at high speeds, this tendency becomes more pronounced, resulting in problems such as deterioration of running stability.

Therefore, the present invention not only allows the surface of the para door glass to be wiped away by the wind when driving in the rain, but also functions as a rear spoiler that increases the ground contact force of the rear wheels and reduces air resistance outside of rainy weather. The present invention aims to provide a rear air guide device for automobiles.

A third means for solving the problem In the present invention, a wind guide plate extending in the vehicle width direction is attached to the upper side of the back door frame so as to be able to move in the same direction.
A rotation mechanism is provided between the air guide plate and the upper side of the back door frame to operate the air guide plate to a position where the wind is directed diagonally upward and a position where the wind is directed diagonally downward along the puncture door glass surface. On the other hand, the drive unit is located in the storage area recessed on the rear surface of the rear loop rail of the vehicle body! 1, and the output lever of this drive mechanism and the input lever of the rotation mechanism are connected to each other so as to be freely engageable and detachable as the back door is opened and closed.

Embodiment □ Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings, with the same reference numerals assigned to the same parts as in the conventional structure.

In FIGS. 1 to 6, 10 indicates a wind guide plate, and this wind guide plate 10 has its both sides connected to the upper side of the back door frame ≠A.
It is rotatably mounted on the top via a hinge member //f.

/2 is a rotation mechanism disposed approximately at the center of the air guide plate 10 between the back surface of the air guide plate 10 and the upper side of the back door frame, and is rotated between the air guide plate 10t and the third surface of the roof panel. The spoiler action position S directs the wind flowing along the vehicle diagonally upward, and the back door glass! It is rotated to a wiping action position aV that is directed diagonally downward along the surface. This rotating machine $12 is
It is mounted and fixed in a mounting hole provided in the upper part of the back door frame A, and is disposed inside the nine casing 13, and is roughly composed of a T-link mechanism and a gear mechanism IS. The link 16 is the spindle/
It is rotatably attached to the casing 13 by Aa, and its free end is a pin 1cQ/7i. link i
t is similarly rotatably attached to the casing /3 from the support shaft /IaIc, and has a guide slit (19) extending from its free end to approximately the center of its length. The pin 172fi is movably engaged with the link /A), and these links 16 and /I constitute a link mechanism /q-. The gear iso tllt/s is integrally molded on the side surface of the shaft support side of this link 16 concentrically with the support shaft 76a, and is rotatably mounted on the bottom of the casing/3 with the specific gravity gear m and the support shaft (21arc). It is composed of a bevel gear, 2/, which meshes with the bevel gear. This bevel gear 21
An L-shaped input lever η that protrudes outside the casing 13 is integrally fixed to the support shaft sia of the input lever 2-. The through hole ao'g (through which it is formed in the side wall of the upper side part FA of the frame protrudes to the outside).

Both ends of the support shaft/7a of the link IS are arranged to protrude outside the casing 13, and a platen (AII) is fixed to the protruding end. When the input lever n is rotated in the horizontal direction, the wind guide plate 10f is rotated between the spoiler action position 8 and the wiping action position as described above through the slag of the scissor machine w/e link mechanism. It has become. j is a dust boot attached to the input lever J disposed in the through hole.

Here, the links /l and /I are the axis 1s connecting the support shaft /Aa center of the link 16 and the center of the pin /7 when the baffle plate 10 is in the spoiler action position and the wiping action position.
01 is arranged so that the axis 01 connecting the support axis /Its of the link /l and the center and the center of the guide slit /f, that is, the center of the bin /7, makes a substantially right angle.

On the other hand, in the central part of the rear surface of the rear loop rail r of the vehicle body l, a storage part 2t for a drive mechanism, which will be described later, is recessed in a part corresponding to the rotation mechanism /2, and a drive mechanism is provided in this storage part. , ut-platan) 2? For example, 2g (bolt/narrow) is fixed through the t-hole. The drive machine is a combination of a known motor and a reduction gear mechanism, and its pivot 29 has an output lever, ? Ot-Fixed.

At the tip of this output lever 30, there is a two-pronged arm section, 1/
f is formed, and the hinge center H of the bank door λ is
With opening and closing around 0, the arm part, ? / and the engagement piece at the n end of the input lever of the rotating mechanism / are adapted to engage and disengage. Although not shown in the drawings, the drive circuit of the drive mechanism 3 has a built-in switch that opens the drive circuit when the pack door door is opened and the bank door 2 is fully opened. Even if the operation switch for the drive mechanism is accidentally activated while the arm is detached, the drive mechanism 26 remains stopped and the arm, ? /
The arm portion 31 is maintained in a posture in which it can engage with the engaging piece phantom, and when the back door λ is closed, these arm portions 31 and the engaging piece phantom are automatically engaged.

In this embodiment, both the motor and the reduction gear mechanism are housed in the storage area, but only the gear mechanism is housed in the storage area and the rotation of the motor placed at an appropriate location is controlled. It may also be transmitted via a Bowden cable.

(The following is a blank space.) Next, the operation of the embodiment device having the above structure will be explained.

When driving at high speeds even in sunny or rainy weather, the drive mechanism 3 is driven by putting the drive mechanism operation switch (not shown) into the spoiler position, and the drive force is transmitted from the output lever 30 to the input lever n. , the link/6 is rotated clockwise in FIG. 1.8 via the gear mechanism 15 until it is restricted by the side wall of the casing 13. The clockwise rotational force of the link 16 is transmitted to the link 7g, thereby rotating the baffle plate 10f to the spoiler action position and stopping it.
Therefore, the wind flowing backward along the roof panel 3 is directed diagonally upward as shown by the first layer arrow a by the wind guide plate 10, and the wind guide plate 10 functions as a rear spoiler to help the rear wheels contact the ground. It is possible to increase force, ensure running stability, and also reduce air resistance.

In rainy weather, when the aforementioned drive mechanism operation switch is placed in the deflector position, the drive mechanism is activated! B is driven in the opposite direction to the above, and the output lever, ? The link /l is rotated counterclockwise via the O1 input lever n and the gear mechanism lS until it is regulated by the side wall of the casing 13, and this rotation is transmitted to the link /1 and has a wiping effect on the baffle plate lO. Rotate to 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 is deflected diagonally downwardly, rather than along the surface of the back door glass, as already indicated by the arrow in FIG. Bank door glass! It is possible to keep the surface clean by blowing off raindrops and splashes adhering to it, and it is possible to ensure rearward visibility for the occupants.

! ! Just in case, even on sunny days when boating at medium or low speeds in urban areas, the wind guide plate 10f should be rotated to the wiping action position p.

If you stop it, the back door glass! It is possible to avoid dust from adhering to the surface.

Here, no matter where the baffle plate IO is at the spoiler action position tSl wiping action position described above, the axis @Os of link /A and the axis 0. Since they form a substantially right angle, the following advantages can be obtained.

That is, when the baffle plate 10 is in the spoiler action position S, the baffle plate 70 receives a pressing force P1 in the clockwise direction in FIG. 3 due to the traveling wind. This pressing force P1 acts as a biasing force on the link /l in the clockwise direction in the figure, but this biasing force is applied to the link /j on the axis 0! direction, and no rotational moment acts on the link /l. On the other hand, the baffle plate io is at the wiping action position p.
, a counterclockwise pressing force P acts on the air guiding and the plate 10, and acts on the link /l as an urging force in the same direction. However, in this case as well, the biasing force acts on the link /l in the direction of the axis @o1, and the yaw/AK rotational moment does not act on it. As a result, regardless of whether the baffle plate 10 is at the spoiler action position S or the wiping action position tD, the rotation mechanism */1 does not move due to the wind pressure while traveling, and the set position of the baffle plate 10 is determined. It is possible. The link 16 and the link ig are connected through the pin/7 and the guide slit 19, and the structure is such that the operation of the link/l is slowed down near the start and stop positions, so the operation of the baffle plate io is greatly reduced. It can be done smoothly.

Effects of the Invention As described above, according to the present invention, the air guide plate can be used as a rear spoiler and as a dirt prevention device for the back door glass. It has the advantage of solving the problem of reduced ground force, further improving safety, and reducing air resistance.
The Wl, 11!1 mechanism is placed on the rear roof rail, close to the rotation mechanism, and the output lever and input lever are connected so that they engage and disengage when the back door is opened and closed, which simplifies the drive transmission system. This has a great practical effect in that it is easy to organize the layout, and the cost can be reduced.

Brief explanation of the previous surface Fig. 1 is a cross-sectional explanatory diagram showing one embodiment of the present invention, Fig. 2 is an exploded perspective view of the same, Fig. 8 is an explanatory diagram of the operation of the rotating mechanism, and Fig. 4 is an explanatory diagram of the rotating mechanism. A perspective explanatory view of the mechanism; FIG. 6 is a rear perspective view of a ninety-wheel vehicle employing the same embodiment device; FIG. 6 is a rear perspective view of a northbound vehicle equipped with the conventional device; FIG. 7 is a cross-section of the same essential parts. It is a diagram.

/...Vehicle body, λ...Puncture door, 3...Roof panel, Hiro...Back door frame, Hiro A...Huck door frame top part,! ...back door glass,
t...Rear 7 rail, ri...storage section, 10.
...Air guide plate, /2...Rotating mechanism, Sword...Input lever, Lagoon...Drive mechanism 1.70...Output lever.

2 people outside Figure 4

Claims (1)

[Claims] (1) A wind guide plate extending in the vehicle width direction is rotatably mounted on the upper side of the back door frame, and a wind guide plate is installed between the air guide plate and the upper side of the back door frame to direct the driving wind. A rotating mechanism is installed that operates in two positions: one pointing diagonally upward and the other pointing diagonally downward along the back door glass surface, while a drive mechanism is installed in a recessed storage area on the rear surface of the rear loop rail of the vehicle body. and an output lever of this drive mechanism,
A rear air guide device for an automobile, characterized in that the input lever of the rotation mechanism is connected to the input lever so as to be freely engageable and detachable as a back door is opened and closed.