JPH051512Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is attached to the outer surface of the vehicle body of a vehicle such as an automobile to improve aerodynamic characteristics. The present invention relates to a vehicle air spoiler device that improves the contact between the tires and the ground by reducing the lift force of the vehicle.

[Conventional technology]

Among the conventional air spoiler devices of this type, there is one that is capable of adjusting the elevation angle of a spoiler plate that deflects airflow, as disclosed in, for example, Japanese Patent Laid-Open No. 60-234076.

As shown in FIG. 13 (FIG. 13 is a copy of FIG. 2 in the above publication), this conventional device has a support 02 fixed to the top surface of a trunk lid 01 of an automobile. The front end of the flat spoiler plate 03 that is long in the left and right direction is connected to an axis 04 that faces in the left and right direction.
A sector gear 05 having an arc shape centered on the shaft 04 is vertically attached to the lower center of the rear end of the spoiler plate 03, and a worm 06 that meshes with the sector gear 05 is provided on the trunk lid 01. By rotating the motor 07,
The spoiler plate 03 is rotated around an axis 04.

According to this conventional device, by adjusting the elevation angle of the spoiler plate according to the traveling speed of the vehicle,
This has the advantage of always maintaining optimal aerodynamic performance.

[Problem that the invention attempts to solve]

In the air spoiler device in which the elevation angle of the spoiler plate 03 can be adjusted as described above, in order to improve aerodynamic performance, it is preferable to widen the adjustable range of the elevation angle of the spoiler plate 03; In order to do this, for example, in the conventional device described above, the sector gear 05 must be lengthened downward, and in this case, the sector gear 05 must be inserted into the trunk lid 01, or the entire device must be made taller. There is a problem that it must be done.

In addition, like the conventional device described above, the air spoiler device attached to the trunk lid 01 is required to be small and lightweight in order not to interfere with the opening and closing of the trunk lid 01, and the air spoiler device is required to be small and lightweight. The amount of overhang, which is the amount of protrusion from the top, is regulated by safety standards, so there is a demand for thinner products.

An object of the present invention is to solve the above-mentioned problems and to provide a vehicle air spoiler device that satisfies the above-mentioned requirements.

Another object of the present invention is to provide an air spoiler device for a vehicle that has a function of restraining a spoiler plate from moving accidentally due to wind force or other external force at an appropriate stop position.

[Means for solving problems]

As a specific means for solving the above-mentioned problems, the present invention connects the upper end of the inclined link to a portion of the spoiler plate whose base end is pivoted to the vehicle body, and which is remote from the base end. The lower end of the inclined link is connected to a sliding body attached to a guide device fixed to the vehicle body so as to be able to move back and forth, and by a drive device provided on the vehicle body,
By reciprocating the sliding body along the guide device, the inclined link is raised and lowered,
In a vehicle air spoiler device configured to rotate a spoiler plate, at a connecting portion between the lower end of the tilted link and the sliding body, an irregular shaft having a non-circular cross section is attached to either the tilted link or the sliding body. and having a narrow part on the other side that fits with the irregularly shaped shaft and engages with the irregularly shaped shaft at one end in a manner that prevents relative rotation,
and an engagement hole having a wide portion that engages with the odd-shaped shaft in a relatively rotatable manner is provided at the other end, and the sliding body is within a movement range necessary to raise and lower the tilted link by a desired range. The irregularly shaped shaft engages with the wide part of the engagement hole and the sliding body overstrokes beyond the movement range, so that the irregularly shaped shaft engages with the narrow part of the engagement hole. It's like this.

[Effect]

In the vehicle air spoiler device of the present invention,
Under normal conditions, the spoiler plate is stopped at a position that is approximately parallel to the surface of the vehicle body, and when the vehicle is to be driven at high speed, or when the vehicle is traveling at high speed, the drive device is activated.
The sliding body is moved in a predetermined direction along the guide device.

Then, the inclined link stands up, the end of the spoiler plate on the inclined link side is lifted, and the spoiler plate rotates upward about the pivot point to the vehicle body.

When the spoiler plate reaches a desired or predetermined angle of inclination and the drive device is deactivated, the movement of the slide and the tilting link is stopped and the spoiler plate is stopped in that position.

By operating the drive device in the opposite direction to that described above, the spoiler plate can be returned to its original position.

The spoiler plate may be configured to be able to stop in only two positions: a substantially horizontal non-use position and a use position at a predetermined angle of inclination, or it may also be able to stop in a desired intermediate position. Good too.

The above-mentioned effects are effects caused by configurations other than the characteristic parts of the present invention, but in the present invention, the following effects occur due to the configuration of the characteristic parts described above.

That is, when the sliding body is within the movement range necessary to raise and lower the tilted link by a desired range as described above, the irregularly shaped shaft is engaged with the wide part of the engagement hole in a relatively non-rotatable manner. However, when the sliding body is overstroked beyond the above movement range, the irregularly shaped shaft engages with the narrow portion of the engagement hole in a relatively non-rotatable manner, and the inclined link is restrained in a non-rotatable manner with respect to the sliding body. .

Therefore, in this state, since the tilting link is restrained so that it cannot be raised, tilting of the spoiler plate is reliably prevented, and the spoiler plate is prevented from rotating accidentally due to wind pressure or other external force.

〔Example〕

Next, an embodiment of the present invention will be described based on FIGS. 1 to 9.

Reference numeral 11 denotes a vehicle body, and reference numeral 12 denotes a trunk lid which is provided above a trunk room (not shown) at the rear of the vehicle body 11 so as to be openable and closable, and which forms a part of the vehicle body 11.

The vehicle air spoiler device 13 of the present invention includes a spoiler plate 14 in the shape of a horizontally long flat plate disposed above the trunk lid 12, and a spoiler plate 14 attached to the center of the upper surface of the trunk lid 12, as shown in FIG. A central rotation mechanism 15 that rotates between an almost horizontal non-use position and a use position tilted rearward and upward by a predetermined angle of elevation as shown in FIG. A side guide mechanism 16 is attached to the trunk lid 12 and guides the rotation of the spoiler plate 14, and a side guide mechanism 16 is attached to the central rotation mechanism 15 to provide driving force to the central rotation mechanism 15. Drive device 17
It consists of four main parts.

The central rotation mechanism 15 includes a substantially horizontal base member 18 facing in the front-rear direction. Base member 18
On the trunk lid 12, which slopes slightly downward toward the rear, there are two front and rear lids with different lengths in the vertical direction.
By fixing the pair of legs 19 and 20 with setscrews 21, they are supported substantially horizontally.

A pair of upward protrusions 22 on the left and right sides are connected to the front side edges of the base member 18, and each protrusion 22
A long hole 23 is formed in each of the holes 23, the long axis 1 of which is inclined forward and upward with respect to the horizontal plane, and which is curved slightly upward.

As shown in FIG. 6, each protrusion 22 has a pair of left and right support plates 24, 25 that face approximately in the vertical direction, and their lower ends sandwich the protrusion 22 from the left and right sides. They are each supported by being fastened to each other with a bolt 26 and a nut 27 that pass through the long hole 23 of the projecting piece 22. In addition,
The nut 27 may be omitted and the bolt 26 may be screwed into a screw hole (not shown) drilled in one of the support plates 24.

At the upper ends of both support plates 24 and 25 are both ends of a horizontal pivot 31 facing in the left-right direction, which supports the front end of a mounting plate 30 fixed to the lower surface of the spoiler plate 14 with bolts 28 and nuts 29. is supported through it.

The spoiler plate 14 can rotate about this pivot 31 between the above-mentioned use position and non-use position.

Projection piece 22 provided with the above-mentioned long hole 23, support plate 2
4, 25, bolts 26, etc., form a pivot support device 32 that supports the pivot 31 in a position-adjustable manner.

That is, loosen the bolt 26 and
At the same time, both support plates 24 and 25 are moved along the elongated hole 23, and both support plates 2 are moved as necessary.
4 and 25 around the central axis of the bolt 26, and then tightening the bolt 26 again, the vertical and longitudinal positions of the pivot 31 can be freely adjusted.

A pair of upwardly facing protrusions 33 and 34 are connected to the front and rear ends of the base member 18, and both protrusions 33 and 34 are provided with a pair of left and right horizontal guide pins that face in the front and rear direction. Each end of 35 is fixed.

A sliding body 37 having a pair of left and right through holes 36 through which the guide pins 35 pass is mounted to be slidable in the front-rear direction.

Downward hanging pieces 37a are connected to the lower portions of both sides of the rear part of the sliding body 37, and irregularly shaped shafts 38 are respectively protruded from the outer surface of each hanging piece 37a at a portion lower than the lower surface of the base member 18. It is set up.

As shown in FIGS. 2 to 4 and 10 to 12, the irregularly shaped shaft 38 has a circular shaft portion 38a.
and planed surfaces 38c and 38d which are connected to the tip of the circular shaft part 38a and whose upper and lower edges of a disk having a larger diameter than the circular shaft part 38a widen forward in a V-shape.
By cutting out the shaft portion 38b, the shaft portion 38b has a non-circular, substantially wedge-shaped side surface.

Each irregular shaft 38 has a pair of left and right inclined links 39.
An engagement hole 40 formed in the oval base 39a is fitted therein.

The engagement hole 40 includes an elongated hole 40a into which the circular shaft portion 38a of the irregularly shaped shaft 38 is fitted, and an irregularly shaped hole 40b which is continuous with the outer end of the elongated hole 40a and into which the irregularly shaped shaft portion 38b of the irregularly shaped shaft 38 is fitted. It is made up of.

The irregularly shaped hole 40b has a substantially similar shape with a side surface larger than that of the irregularly shaped shaft portion 38b.
A pair of smooth surfaces 40c and 40d having the same included angle as the planed surfaces 38c and 38d of b are provided, and at the rear,
The irregularly shaped shaft part 38b wedges into both smooth surfaces 40c and 40d, and includes a narrow part 40e that engages them in a relatively non-rotatable manner, and a wide part in the front part that engages the irregularly shaped shaft part 38b in a relatively rotatable manner. It is equipped with 40f.

The portions of the left and right inclined links 39 slightly above the center are connected to each other by a horizontal connecting rod 41, and the planar shape as a whole is approximately H-shaped.

The upper end of each inclined link 39 is pivotally attached to each side of the rear end of the mounting plate 30 with an axis 42 parallel to the pivot 31 .

Thus, as shown in FIGS. 2 and 4, the sliding body 37 reaches the rear limit position where it abuts against the cushioning stopper 43 made of rubber or the like provided at the center of the front surface of the protrusion 34 at the rear of the base member 18. , the circular shaft portion 38a of the irregularly shaped shaft 38 is connected to the elongated hole 40 of the engagement hole 40.
The rear end portion of a and the irregularly shaped shaft portion 38b respectively engage with the narrow portion 40e of the irregularly shaped hole 40b of the engagement hole 40, and the inclined link 39 is in the most collapsed state as it faces forward and upward. The spoiler plate 14 is supported in a substantially horizontal unused position via the mounting plate 30.

At this time, the narrow portion 40e of the irregularly shaped hole 40b is engaged with the irregularly shaped shaft portion 38b in a relatively non-rotatable manner.
Rotation around 8 is reliably prevented, spoiler plate 1
4 is reliably supported without being accidentally rotated by wind or other external forces.

While the sliding body 37 advances along the guide pin 35 from the above-mentioned rear limit position to the operation start position shown by the imaginary line in FIG. 2 and the solid line in FIG. 12, the inclined link 39 remains stationary. The modified shaft 38 simply moves forward relative to the engagement hole 40.

When the sliding body 37 reaches the operation start position, the circular shaft portion 38a of the irregularly shaped shaft 38 comes into contact with the front end of the elongated hole 40a, and the irregularly shaped shaft portion 38b comes into contact with the front end of the irregularly shaped hole 40b, and from then on, the sliding body 37 starts operating. When advancing beyond the starting position, the lower end of each inclined link 39 is pushed forward.

As shown in FIG. 3, from the operation start position of the sliding body 37, the front surface of each hanging piece 37a of the sliding body 37 is connected to the rubber or the like tightly fitted to the hanging piece 44 formed on the lower front surface of the base member 18. While the inclined link 39 advances to the front limit position where it comes into contact with the shock-absorbing stopper 45, the lower end of the inclined link 39 is advanced by the irregularly shaped shaft 38, and gradually rises while rotating upward about the irregularly shaped shaft 38, and the spoiler The rear part of the plate 14 is lifted and the spoiler plate 14 is gradually rotated upward about the pivot 31.

At this time, the irregularly shaped shaft portion 38b engages with the wide portion 40f of the irregularly shaped hole 40b so as to be relatively rotatable, so the inclined link 39 can rotate relative to the irregularly shaped shaft 38.

When the sliding body 37 reaches the front limit position, the inclined link 39 is in an upright state in which the lower end is located almost vertically or slightly forward of the upper end, and the spoiler plate 14 is used at its maximum elevation angle facing rearward. Support in position. At this time, the irregularly shaped shaft portion 38b and the irregularly shaped hole 40b
The positional relationship is as shown in FIG.

When the sliding body 37 is moved backward from the front limit position to the rear limit position, the operation is reversed to the above case.
While the sliding body 37 moves from the front limit position to the operation start position, the inclined link 39 gradually collapses, and the angle of elevation of the spoiler plate 14 toward the rear gradually decreases until it finally reaches the position shown in FIG. Returns to use position,
Further, while the sliding body 37 moves from the operation start position to the rear limit position, the irregularly shaped shaft 38 moves rearward within the engagement hole 40 of the immovable inclined link 39, and the irregularly shaped shaft portion 3
8b engages with the narrow portion 40e of the irregularly shaped hole 40b,
Everything returns to the state shown in FIG.

As described above, the relationship between the irregularly shaped shaft 38 and the engagement hole 40 is such that the sliding body 37 moves from the operation start position to the front limit position, which is the movement range L1 necessary to raise and lower the inclined link 39 by a desired range. When it is between
The irregularly shaped shaft portion 38b rotatably engages with the wide portion 40f of the irregularly shaped hole 40b, and the sliding body 37 overstrokes beyond the movement range L1 to the rear limit position, so that the irregularly shaped shaft portion 38b becomes irregularly shaped. Hole 4
It is adapted to engage with the narrow width portion 40e of 0b.

Of the above-described configurations, the base member 18, guide pin 35, stoppers 43, 45, etc.
A guide device 46 is formed that guides the sliding body 37 so as to be able to reciprocate in the front-rear direction.
The central rotation mechanism 15 is formed by the guide device 46, the irregular shaft 38, the inclined link 39, the engagement hole 40, the mounting plate 30, the pivot 31, the pivot support device 32, and the like.

As shown in FIGS. 1 to 4 and 7, the drive device 17 includes a compression coil spring 48 provided within the central rotation mechanism 15 and a case 49 provided at an appropriate location on the vehicle body 11 away from the trunk lid 12. A winding drum 50 is rotatably supported on this case 49.
, a motor 51 fixed to the case 49 and capable of rotating in forward and reverse directions;
a reduction gear device 52 that reduces the rotational force of the rotational force and transmits it to the winding drum 50; and a sliding body 37 of the central rotation mechanism 15.
The main component includes a cable 53 such as a wire that connects the winding drum 50 and the winding drum 50 to each other.

The compression coil springs 48 are wound around each guide pin 35 and compressed between the front protrusion 33 of the base member 18 and the front end surface of the sliding body 37, so as to keep the sliding body 37 at all times. It serves as a biasing means for biasing backward.

The case 49 includes a board 54 fixed to the vehicle body 11.
and a drum cover 55 that covers the winding drum 50. A motor 5 is mounted on the bottom surface of the board 54.
1 and a speed reducer 52, and a winding drum 50 is mounted on the upper surface of the substrate 54.

The speed reduction device 52 includes, for example, a worm (not shown) linked to the rotating shaft of the motor 51, and a worm wheel (not shown) meshed with the worm and linked to the drum shaft 50a of the winding drum 50.
Any known device may be used.

The cable 53 has one end fixed to the center of the sliding body 37, extends forward from there, passes through the center of the protrusion 33 on the front of the base member 18, and is connected to a flexible guide tube. 56, enters the lower part of the trunk lid 12, and is further guided to the case 49 by the guide tube 56,
After exiting the guide tube 56, the winding guide 50
After being wound around the outer periphery of the winding drum 50, the other end is fixed to the outer periphery of the winding drum 50.

The guide tube 56 has one end connected to the base member 18.
The other end is fixed to the front surface of the protruding piece 33 on the front side of the case 49, and the other end is attached to the upper surface of the base plate 54 of the case 49 with an appropriate stopper 5.
It is fixed with 7.

As shown in FIG. 7, the winding drum 50 has an outer circumference shaped like a perfect circle, and a drum shaft 50a is positioned eccentrically from the center of the winding drum 50, so that one half 50b of the outer circumference is formed. However, cable 5
3, the effective diameters r1, r2, r3...
It is arranged so that rx gradually decreases.

With this configuration, the winding drum 50 is rotated clockwise in FIG.
When moving forward against the urging force of 8, even if the torque of the motor 51 is always constant, the compression coil spring 48 is gradually compressed and its repulsive force gradually increases in proportion to the The cable 53 can be wound and pulled with gradually increasing force from the winding drum 50 side.

Thus, by operating the drive device 17, that is, the motor 51, and rotating the winding drum 50 in the clockwise or counterclockwise direction in FIG. , pulling the cable 53 to move the sliding body 37 forward against the biasing force of the compression coil spring 48, or moving the sliding body 37 backward by the biasing force of the compression coil spring 48. I can do it.

Although not shown in the drawings, limit switches for detecting when the sliding body 37 reaches the rear limit position and the front limit position are provided at appropriate locations on the guide device 46, and the operation of the motor 51 is controlled accordingly. Good.

Among the above configurations, the case 49, the winding drum 5
0, the motor 51, the speed reducer 52, etc.
A winding device 47 for 3 is formed.

As shown in FIGS. 2 to 5, the inclined link 3
9 and the hanging piece 37a of the sliding body 37, and over the entire length of the movement trajectory of the sliding body 37, the upper surface, both side surfaces, and front and rear surfaces of the sliding body 37 and the guide device 46 are A box-shaped inner cover 58 with a downward opening is provided to cover it.

This inner cover 58 has a forward-facing mounting piece 58a connected to its lower front end on the front foot piece 19, and a rearward-facing mounting piece 5 connected to its lower rear end.
8b on the rear ends of the legs 20 that protrude rearward from the base member 18, respectively, with appropriate setscrews 59.
It is supported by fixing it with.

Reference numeral 60 denotes an outer cover provided further outside of the inner cover 58, and on its upper surface are a pair of left and right support plates long in the front-rear direction that pass through the left and right support plates 24 and 25 so as to be slightly tiltable with the left and right support plates 24 and 25 overlapped with each other. A long hole 61 and a pair of left and right long holes 62 which are long in the front-rear direction and through which the left and right inclined links 39 can tilt are formed.

The outer cover 60 covers the upper surface, both side surfaces, and front and rear surfaces of the entire central rotation mechanism 15 except for the upper portions of the support plates 24 and 25 and the tilted link 39 that protrude upward through the elongated holes 61 and 62. It's on.

The outer cover 60 is attached to the trunk lid 12 by fixing an appropriate number of attachment pieces 60a bent inward from the lower edges on both sides onto the trunk lid 12 with set screws 63. There is.

This double cover structure inside and outside makes the central rotation mechanism 15 waterproof and dustproof.

That is, the outer cover 60 can almost prevent rainwater, dust, etc. from entering the inside thereof, and in the unlikely event that the long holes 6 of the outer cover 60
1 and 62, rainwater, dust, etc. are removed from the outer cover 60.
Even if they get inside the inclined link 39
, and fall onto the top surface of the trunk lid 12 from its lower end, or after falling onto the inner cover 58 , from the top surface down the side surface and onto the top surface of the trunk lid 12 , in any case, they fall onto the top surface of the trunk lid 12 . There is almost no possibility that it will invade the sliding portion between the guide device 37 and the guide device 46.

Therefore, smooth operation can be maintained and durability can be improved.

In the outer cover 60, rainwater that has accumulated on the upper surface of the trunk lid 12 is drained from the gap between the upper surface of the trunk lid 12 and the lower edge of the outer cover 60, or from a drainage hole (not shown) formed as necessary. ) etc., and is discharged to the outside of the outer cover 60.

In addition, a sealing member (not shown) such as a rubber plate with a slit cut therein is appropriately installed in each of the long holes 61 and 62, and the support plates 24 and 25 in each of the long holes 61 and 62 are
It is also preferable to close the gap other than the inclined link 39.

As shown in FIGS. 1, 8, and 9, the left and right side guide mechanisms 16 (as they have the same structure, only one will be described below) are connected to the central rotation mechanism 15. identical components,
It has different component parts.

First, the same components as the central rotation mechanism 15 will be described. The side guide mechanism 16 includes upwardly facing protrusions 64 and 65 at the front and rear ends, and a pair of front and rear legs 66 and 67. It also includes a base member 68 secured onto the trunk lid 12.

A projecting piece 70 having an inclined slightly arcuate elongated hole 69 is connected to both intermediate sides of the base member 68, and this projecting piece 70 is provided with support plates 71 and 72 that sandwich it from the left and right, and support plates 71 and 72 that sandwich it from the left and right, and A pivot support device 75 consisting of a bolt 73 and a nut 74 passing through the elongated hole 69 is attached.

Support plates 71 and 7 in this pivot support device 75
A pivot 77 that pivots the front end of the mounting plate 76 fixed to the lower surface of the spoiler plate 14 by the upper end of 2.
It is supported so that its position can be adjusted.

If the pivot shaft 31 in the central rotation mechanism 15 and the pivot shafts 77 in the left and right side guide mechanisms 16 are not completely aligned, the rotation of the spoiler plate 14 may be hindered or the rotation may be interrupted. Since this is impossible, each pivot support device 32, 75 is a position adjustment means for positioning each pivot 31, 77 so perfectly in line.

Next, to explain the difference from the configuration of the central rotation mechanism 15, in the center of each of the front and rear projecting pieces 64, 65 of the base member 68, each end of one horizontal guide pin 78 facing the front and rear direction is provided. The parts are fixed.

A sliding body 80 having a through hole 79 through which the guide pin 78 passes is mounted on the guide pin 78 so as to be slidable in the front-rear direction.

A base member 68 is located at the center of the lower surface of the sliding body 80.
A rectangular long hole 8 that is long in the front-rear direction is bored in the center of the
A hanging piece 81 that penetrates through the base member 68 and protrudes downward is connected to it, and a cylindrical part 83 that passes below the base member 68 and extends to both sides is connected to the left and right side surfaces of the hanging piece 81. has been done.

A lower end of an inclined link 84 is pivotally attached to the tip of each cylindrical portion 83 with a shaft 85 parallel to the pivot 77 . Both inclined links 84 are integrally connected to each other near their upper ends by connecting rods 86 facing in the lateral direction, and have a generally H-shaped planar shape as a whole.

This inclined link 84 is located on the opposite side of the central rotation mechanism 15 from the inclined direction of the inclined link 39.
That is, it is inclined rearward and upward, and its upper end is pivotally attached to the rear end of the mounting plate 76 with a shaft 87 parallel to the pivot 77 .

This shaft 87 is the shaft 4 in the central rotation mechanism 15.
There is no particular need to arrange it in a straight line with 2, and
The length of the inclined link 84 does not need to match the length of the inclined link 39 in the central rotation mechanism 15. In the embodiment, the inclined link 84 is connected to the inclined link 3.
It is slightly longer than 9.

A compression coil spring 88 is compressed between the rear surface of the sliding body 80 and the rear projection piece 65 of the base member 68 so as to be wound around the guide pin 78. As a result, the sliding body 80 is always urged forward.

As shown by the solid line in FIG. 8, the sliding body 80 is at the front end position where the hanging piece 81 abuts against a stopper 90 made of rubber or the like fitted to a hanging piece 89 hanging from the front edge of the elongated hole 82. And, as shown by the imaginary line in Figure 8,
The hanging piece 81 is movable between a rear limit position where it abuts a stopper 92 made of rubber or the like fitted to a hanging piece 91 hanging from the rear edge of the elongated hole 82 .

When the spoiler plate 14 is maintained at the unused position by the central rotation mechanism 15, the sliding body 80 is held at the front end position by the biasing force of the compression coil spring 88, and the inclined link 84 is moved as shown in FIG. As shown by the solid line in , the spoiler plate 14 is supported at both rear sides thereof so as not to vibrate vertically unintentionally with the upper part tilted most backward.

The spoiler plate 14 is rotated upward to the use position by the central rotation mechanism 15, that is, by pulling the cable 53 and erecting the inclined link 39 against the biasing force of the compression coil spring 48. In this case, along with this upward rotation of the spoiler plate 14, the upper end of the inclined link 84 is pulled up, the inclined link 84 is made to stand up as shown by the imaginary line in FIG. 8, and the sliding body 80 is It is moved to the rear limit position against the biasing force of the compression coil spring 88.

When the spoiler plate 14 is moved from the use position to the non-use position by the central rotation mechanism 15, the biasing force of the compression coil spring 88 assists the spoiler plate 14 in the direction of inversion.

In this way, the left and right side guide mechanisms 16
When the spoiler plate 14 is rotated around the pivots 31 and 77 by the central rotation mechanism 15,
Guide the both sides of the spoiler plate 14, and
Make the rotation of 4 smooth.

Of the above-described configurations, the base member 68, guide pin 78, stoppers 90, 92, etc.
A guide device 93 is formed that guides 0 in a reciprocating manner in the front and back direction.

94 is an inner cover similar to the inner cover 58 of the central rotation mechanism 15, and 95 is an outer cover similar to the outer cover 60.

Next, the overall operation of the apparatus of this embodiment will be briefly explained.

When the spoiler plate 14 is in the horizontal non-use position, the sliding body 37 is positioned at the rear limit position by the biasing force of the compression coil spring 48, and the sliding body 8
0 is positioned at the front limit position by the biasing force of the compression coil spring 88, and the inclined link 39 is moved forward.
Further, the inclined links 84 support the spoiler plate 14 in a state in which they are respectively laid down rearward.

From this state, when the motor 51 of the drive device 17 is activated and the winding drum 50 is rotated clockwise in FIG. 7 to wind up the cable 53, the sliding body 37 starts operating from the rear limit position. position, the compression coil spring 48 resists the urging force of the compression coil spring 48, and from the operation start position to the front limit position, the compression coil spring 48
Besides the biasing force of
etc., it acts indirectly on the sliding body 37)
The sliding body 37 is gradually moved forward against the
While moving from the operation start position to the front limit position,
The inclined link 39 stands up, and the rear end of the spoiler plate 14 is rotated upward about the pivots 31 and 77.

Along with this, the upper end of the inclined link 84 in each side guide mechanism 16 is pulled up, so that the inclined link 84 is erected, and its lower end and the sliding body 80 resist the biasing force of the compression coil spring 88. and be moved backwards.

When the sliding body 37 reaches the front limit position, the inclined link 39 is in an upright position, and the spoiler plate 14 is in the use position. At this time, the inclined link 84 stops in an inclined state where the lower end is located slightly forward of the upper end,
Moreover, the sliding body 80 stops at the rear limit position.

In this way, when the car runs at high speed while the spoiler plate 14 is maintained in the use position, the spoiler plate 14 tilts upward at the rear.
The wind pressure acting on the top surface generates a force that pushes the rear of the vehicle downward, and this force pushes the tires against the ground against the wind-induced lift when the vehicle is running at high speeds, improving the tire's ground contact. do.

When the spoiler plate 14 is in the use position, the motor 51 is operated to rotate the winding drum 50 in the counterclockwise direction in FIG.
3 is unwound from the winding drum 50, the sliding body 37 is moved rearward by the biasing force of the compression coil spring 48, and the sliding body 80 is moved forward by the compression coil spring 88, and the inclined link 39 and the inclined link 84 are gradually lowered in opposite directions, the spoiler plate 14 is lowered so that the angle of elevation gradually becomes smaller, and the sliding body 37 is at the operation start position and the sliding body 80 is at the front limit position. Once each is reached, the spoiler plate 14 is returned to its original, non-use position.

Note that the spoiler plate 14 can also be stopped at a position halfway between the use position and the non-use position by stopping the operation of the motor 51.

When the sliding body 37 is further moved from the operation start position to the rear limit position, the irregularly shaped shaft 38
The spoiler plate 14 is retracted until it engages with the narrow portion 40e of the engagement hole 40, and the spoiler plate 14 is reliably supported in a horizontal state without rotating unnecessarily.

The present invention relates to the structure of the connecting portion between the sliding body 37 and the inclined link 39, which are comprised of the irregularly shaped shaft 38, the engagement hole 40, etc., in the above-described embodiments, and the structure of this portion is changed to the structure of the present invention. By doing so, it is possible to achieve the effects described below as effects of the invention.

In addition, in the above-mentioned embodiment, the sliding body 37
By overstroking backward from the operation start position, the irregularly shaped shaft 38 engages with the narrow portion 40e of the engagement hole 40 to prevent the rotation of the inclined link 39 in the laid down state, and the spoiler plate 14 For example, by overstroking the sliding body 37 forward beyond the movement range L1 required to raise and lower the inclined link 39 by a desired range, the irregularly shaped shaft can be 3
8 may be engaged with the narrow portion 40e of the engagement hole 40 to prevent rotation of the inclined link 39 in the upright state, thereby reliably supporting the spoiler plate 14 in the use position.

Alternatively, the engaging hole 40 may be bored on the sliding body 37 side, and the irregularly shaped shaft 38 may be bored on the base end side of the inclined link 39.

Further, the side surface shape of the irregularly shaped shaft portion 38b of the irregularly shaped shaft 38 is set to be, for example, a plate shape or another shape, and accordingly, the shape of the wide portion 40f of the engagement hole 40 is changed to a circular hole, and the shape of the narrow portion 40e is also changed to a circular hole. Many variations are possible, such as making it into a long hole shape.

[Effect of idea]

As is clear from the above, according to the present invention, by overstroking the sliding body, the irregularly shaped shaft is engaged with the narrow part of the engagement hole in a relatively non-rotatable manner, thereby preventing rotation of the inclined link. Therefore, when the spoiler plate is stopped, the inclined link can be prevented from rotating unnecessarily, and the spoiler plate can be prevented from rotating or rattling accordingly, and the spoiler plate can be reliably supported. It has the advantage of being able to

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing an embodiment of the present invention mounted on a vehicle body, and Fig. 2 is a longitudinal cross-sectional side view of the central rotation mechanism when the spoiler plate is located in the non-use position. Figure 3 is a vertical sectional side view similar to Figure 2 when the spoiler plate is in the use position, Figure 4 is a partially broken plane seen from line A-A in Figure 2. Figure 5 shows B-B in Figure 2.
The longitudinal rear view along the line, Figure 6, is C-C in Figure 2.
7 is a partially cutaway plan view of the drive device, FIG. 8 is a vertical sectional side view of the side guide mechanism, and FIG. 9 is a view taken from above in FIG. 8. The partially cutaway plan view, FIG. 10, is taken from D-D in FIG.
A cross-sectional plan view of the main part along the line, FIG.
Fig. 12 is a longitudinal sectional side view taken along the line E-E in the figure, Fig. 12 is a longitudinal sectional side view of the same part as Fig. 11 when the sliding body reaches the operation start position, and Fig. 13 is a longitudinal sectional side view of the conventional air spoiler device. It is a partially cutaway perspective view showing an example. 11...Vehicle body, 12...Trunk lid, 13
... Air spoiler device for vehicle, 14 ... Spoiler plate, 15 ... Central rotation mechanism, 16 ... Side guide mechanism, 17 ... Drive device, 18 ... Base member,
31, 77... Pivot, 35... Guide pin, 3
7, 80...Sliding body, 38...Irregular shaft, 38b...
...Unusual shaft part, 39, 84... Inclined link, 40...
...Engagement hole, 40b...Unusual hole, 40e...Narrow width part, 40f...Wide width part, 46, 93...Guide device, L1...Sliding body necessary to raise and lower the inclined link by the desired range movement range.

Claims (1)

[Claims for Utility Model Registration] (1) An upper end of an inclined link is connected to a portion remote from the base end of a spoiler plate whose base end is pivotally attached to the vehicle body, and a lower end of the inclined link is , is connected to a sliding body that is reciprocably attached to a guide device fixed to the vehicle body, and is driven by a drive device installed on the vehicle body.
In the air spoiler device for a vehicle, the tilting link is raised and lowered by reciprocating the sliding body along the guide device, and the spoiler plate is rotated, wherein the lower end of the tilting link and the sliding body In the connection part, an irregularly shaped shaft having a non-circular cross section is fixed to either one of the inclined link and the sliding body, and the other is fitted with the irregularly shaped shaft, and one end is configured to rotate relative to the irregularly shaped shaft. An engagement hole is provided that includes a narrow portion that engages irrevocably and a wide portion that engages the odd-shaped shaft in a relatively rotatable manner at the other end, and the sliding body raises and lowers the inclined link by a desired range. within the range of movement necessary to
The irregularly shaped shaft engages with the wide part of the engagement hole, and the sliding body overstrokes beyond the movement range, so that the irregularly shaped shaft engages with the narrow part of the engagement hole. A vehicle air spoiler device characterized by: (2) The vehicle according to claim 1, wherein the irregularly shaped shaft has a substantially wedge-shaped cross-sectional shape, and the engagement hole has a large wedge shape that is substantially similar to the irregularly shaped shaft. Air spoiler device.