JP2017226244A - Vehicle front spoiler device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle front spoiler device which occupies a small space in an engine compartment.SOLUTION: A vehicle front spoiler device 1 includes: a fixed spoiler 10 having a function of an undercover which covers a lower part of an engine compartment 2; a movable spoiler 20 which is displaced between a storage position where the movable spoiler 20 is stored in a storage part 13 provided at the fixed spoiler 10 and a deployment position where the movable spoiler 20 is deployed from the storage part 13; and an actuator which displaces the movable spoiler 20 between the storage position and the deployment position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle front spoiler device.

2. Description of the Related Art Conventionally, a vehicle front spoiler device that displaces a movable spoiler according to the vehicle speed and stabilizes the behavior of the vehicle is well known.
The movable spoiler employed in the vehicle front spoiler device of Patent Document 1 also has a function as an undercover that covers the lower part of the engine compartment of the vehicle.

JP 63-103775 A

  Since the movable spoiler employed in the vehicle front spoiler device of Patent Document 1 has a function as an undercover, the spoiler and the undercover are heavier than those separately provided. For this reason, it is necessary to enlarge the actuator for displacing the movable spoiler, and the occupied space in the engine compartment is large.

  An object of the present invention is to provide a vehicle front spoiler device that occupies a small space in an engine compartment.

  In order to solve the above-described problem, a vehicle front spoiler device includes a fixed spoiler that functions as an undercover that covers a lower portion of an engine compartment, a storage position that is stored in a storage unit provided in the fixed spoiler, and the storage unit And a movable spoiler that is displaced between the retracted position and the deployed position, and an actuator that displaces the movable spoiler between the retracted position and the deployed position.

  According to this configuration, only the movable spoiler that does not function as an undercover is displaced by driving the actuator. For this reason, since the weight of the part to move is light compared with the past, an actuator is reduced in size. Thereby, the occupation space in an engine compartment becomes small and the arrangement | positioning freedom degree of another vehicle component increases. Furthermore, a greater aerodynamic effect can be obtained by the cooperation of the movable spoiler and the fixed spoiler. Thereby, the behavior of the vehicle during traveling is further stabilized.

  In the above configuration, the fixed spoiler includes a first spoiler portion that overlaps the movable spoiler when viewed from the front of the vehicle when the movable spoiler is in the retracted position, and an under cover portion that is continuous to the rear of the first spoiler portion. The movable spoiler includes a second spoiler part and a support part that is continuous to the rear of the second spoiler part, and the storage part is opened downward and the second spoiler part. It is a site | part where it is stored, Comprising: It has an opening part which connects the said storage part and the said engine compartment, It is preferable that the said movable spoiler is connected to the said actuator via the said support part.

  According to this configuration, the opening is located behind the first spoiler and has a positional relationship overlapping the first spoiler when viewed from the front of the vehicle. Therefore, when the vehicle is traveling, the engine compartment is opened through the opening. Foreign matter is difficult to enter.

  In the above-described configuration, it is provided with spats that interlock with the movable spoiler and are displaced so as to overlap the front tire in a front view of the vehicle as the movable spoiler is displaced from the retracted position to the deployed position. preferable.

  According to this configuration, the aerodynamic effect is enhanced by the cooperation of the movable spoiler and the spats, and the behavior of the vehicle while traveling is stabilized. Further, since the actuator can be shared for the displacement of the movable spoiler and the displacement of the spats, the configuration is reduced accordingly.

The said structure WHEREIN: It is preferable to provide the link mechanism interposed between the said actuator and the said movable spoiler.
Since a large displacement can be obtained with a small driving force by the link mechanism, a smaller actuator can be employed.

  In the above configuration, the link mechanism includes a crank that is fixed to an output shaft on which the actuator rotates by driving, and the crank is located at the retracted position or the deployed position or both of these positions. When it does, it is preferable to be located so that it may extend in a gravitational direction.

  According to this configuration, if the crank extends in the direction of gravity, the rotational force associated with the weight of the movable spoiler and the link mechanism is not input from the crank to the output shaft. Therefore, since the position of the crank is maintained without driving the actuator, the energy consumed in the actuator is reduced accordingly. Further, it is not necessary to add a configuration for maintaining the position of the crank and the position of the movable spoiler separately.

  The vehicle front spoiler device of the present invention has the effect that the occupied space in the engine compartment is small.

The exploded perspective view of the front spoiler device for vehicles. The perspective view of the front spoiler device for vehicles except a fixed spoiler. The side view of the front spoiler device for vehicles when a movable spoiler exists in a storing position. The side view of the front spoiler device for vehicles when a movable spoiler exists in a deployment position. The vehicle front view when a movable spoiler exists in a storing position. The vehicle front view when a movable spoiler exists in a deployment position.

Hereinafter, an embodiment of a vehicle front spoiler device will be described with reference to the drawings.
The vehicle front spoiler device 1 (hereinafter referred to as the spoiler device 1) includes a fixed spoiler 10, a movable spoiler 20, and a drive unit 30.

  As shown in FIGS. 1, 3, and 4, the fixed spoiler 10 extends from the first spoiler portion 11 extending in the vehicle width direction and the rear edge portion of the first spoiler portion 11 toward the rear of the vehicle. And an under cover portion 12 that covers a lower portion of the engine compartment 2. Note that the direction in which the vehicle advances (left direction in FIGS. 3 and 4) corresponds to the front of the vehicle, and the direction in which the vehicle moves backward (right direction in FIGS. 3 and 4) corresponds to the rear of the vehicle.

  More specifically, as shown in FIGS. 3 and 4, the under cover portion 12 includes a first plate-like portion 12 a that is inclined so as to gradually rise toward the front of the vehicle, and a front portion of the first plate-like portion 12 a. It has the 2nd plate-shaped part 12b extended toward upper direction from an edge part, and the 3rd plate-shaped part 12c extended toward the front from the upper edge part of 2nd plate-shaped part 12b.

  The first spoiler portion 11 extends downward from the front edge of the third plate-like portion 12c and extends downwardly from the front edge of the third plate-like portion 12c, and downward from the lower edge of the front inclination wall 11a. And a rearward inclined wall 11b extending gradually toward the rear. In addition, the position of the lower edge part of the back inclination wall 11b is substantially equal to the position which extended the 1st plate-shaped part 12a ahead.

  A portion that is surrounded by the second plate-like portion 12b, the third plate-like portion 12c, the forward inclined wall 11a, and the backward inclined wall 11b and that opens downward is defined as the storage portion 13. The storage unit 13 is located behind the first spoiler unit 11 and extends in the vehicle width direction. That is, the storage unit 13 is hidden behind the first spoiler unit 11 and cannot be visually recognized because of the positional relationship overlapping the first spoiler unit 11 when viewed from the front of the vehicle (see FIG. 5).

  As shown in FIGS. 1, 3, and 4, openings 15 that connect the storage portion 13 and the engine compartment 2 are provided at both ends of the second plate-like portion 12 b in the vehicle width direction. . As described above, since the positional relationship overlaps with the first spoiler part 11 when viewed from the front of the vehicle, the opening 15 is hidden behind the first spoiler part 11 and cannot be viewed when viewed from the front of the vehicle (see FIG. 5). ).

  As shown in FIGS. 2, 3, and 4, the movable spoiler 20 includes a second spoiler portion 21 extending in the vehicle width direction and rear ends of both ends of the second spoiler portion 21 in the vehicle width direction. A pair of extending support members 22. The support member 22 corresponds to a support portion.

  More specifically, the second spoiler portion 21 is a solid body having a substantially pentagonal cross section having a top portion 21a that gradually becomes sharper toward the front. On the lower edge of the rear side of the second spoiler portion 21, a protruding portion 21b extending rearward is provided. The support member 22 is continuous with the upper edge portion on the rear side of the second spoiler portion 21 and extends rearward.

  In addition, the front-rear direction dimension between the top part 21a and the projection part 21b is the front-rear direction dimension of the storage part 13, more precisely, between the lower edge part of the rearwardly inclined wall 11b and the front surface of the second plate-like part 12b. Is set smaller than the front-rear dimension. The vertical dimension of the second spoiler part 21 is the vertical dimension of the storage part 13, more precisely, the vertical dimension between the lower edge part of the rearwardly inclined wall 11b and the lower surface of the third plate-like part 12c. Is set smaller than. For this reason, the second spoiler unit 21 is allowed to be stored in the storage unit 13.

  The support member 22 is a shaft-like member having a small cross-sectional area with respect to the opening area in the opening 15, and is inserted through the opening 15. The support member 22 can be displaced in the vertical direction while being inserted into the opening 15. Thereby, the movable spoiler 20 is displaced between the storage position stored in the storage unit 13 shown in FIG. 3 and the development position developed from the storage unit 13 shown in FIG. As shown in FIGS. 3 and 5, the movable spoiler 20 in the retracted position overlaps with the first spoiler portion 11 when viewed from the front of the vehicle because of the positional relationship overlapping with the fixed spoiler 10 (first spoiler portion 11). Hidden and invisible.

  The drive unit 30 includes a link mechanism 40 and an actuator 50, and is interposed between each support member 22 and a vehicle frame (not shown). In addition, since the structure of the drive part 30 provided in two places in the vehicle width direction is common, it demonstrates using a common code | symbol.

  The link mechanism 40 includes a fixed side bracket 41 fixed to a vehicle frame (not shown) and a movable side bracket 42 attached to the support member 22 of the movable spoiler 20. An actuator 50 is fixed to the fixed side bracket 41.

  The link mechanism 40 includes a crank 43, a connecting rod 44, a first link 45, and a second link 46 interposed between the fixed side bracket 41 and the movable side bracket 42.

  The crank 43 is a shaft-like member, one end of which is fixed to an output shaft 51 that rotates when the actuator 50 is driven, and the other end is rotatable relative to one end of the connecting rod 44. Is pivotally supported. A connecting portion between the crank 43 and the connecting rod 44 is defined as a rotating shaft 47.

  The connecting rod 44 is a shaft-like member longer than the crank 43, and one end portion thereof is pivotally supported so as to be relatively rotatable with respect to the crank 43 as described above (rotating shaft 47), and the other end portion is a first member. The one link 45 is pivotally supported at the center (between both ends) so as to be relatively rotatable.

  The first link 45 and the second link 46 are shaft-like members having the same dimensions, and one end of each of the first link 45 and the second link 46 is relatively rotated with respect to the fixed side bracket 41 in a state of being parallel to each other. The other end of each is pivotally supported so as to be rotatable relative to the movable bracket 42.

The first link 45 is located behind the second link 46 and is pivotally supported by the connecting rod 44 at the center thereof so as to be relatively rotatable as described above.
Driving of the actuator 50 is controlled by a control unit (not shown).

  When the output shaft 51 is at the center, the control unit controls the actuator 50 so that the rotary shaft 47 is positioned between the 12 o'clock position shown in FIG. 3 and the 5 o'clock position shown in FIG. Control the drive.

The control unit drives the actuator 50 in accordance with the vehicle speed detected by a vehicle speed sensor (not shown), and changes the position of the rotating shaft 47 as appropriate.
More specifically, the control unit drives the actuator 50 so that the rotary shaft 47 is positioned at the 12 o'clock position (see FIG. 3) with respect to the output shaft 51 when the vehicle speed is 0 (zero). At this time, the movable spoiler 20 is located at the storage position stored in the storage unit 13. In addition, when it exists in this state, the top part 21a of the 2nd spoiler part 21 is located above the lower edge part of the back inclination wall 11b.

  The control unit changes the position of the rotating shaft 47 with respect to the output shaft 51 in a stepwise manner according to the vehicle speed. For example, when the vehicle speed is speed A (A> 0), the control unit drives the actuator 50 so that the rotation shaft 47 is positioned at the 3 o'clock position (not shown) with respect to the output shaft 51. At this time, although illustration is omitted, the movable spoiler 20 is located at a deployed position where a part thereof is deployed from the storage unit 13. In addition, when it exists in this state, the top part 21a of the 2nd spoiler part 21 is located above the lower edge part of the back inclination wall 11b. In addition, the second spoiler part 21 has a lower part than the top part 21a positioned below the lower edge part of the rearward inclined wall 11b.

  Further, when the vehicle speed is the speed B (B> A), the control unit drives the actuator 50 so that the rotation shaft 47 is positioned at the 5 o'clock position (see FIG. 4) with respect to the output shaft 51. At this time, the movable spoiler 20 is located at the unfolded position completely unfolded from the storage unit 13. In addition, when it exists in this state, as for the 2nd spoiler part 21, the top part 21a is located below rather than the lower edge part of the back inclination wall 11b.

  In this example, the position of the rotary shaft 47 with respect to the output shaft 51 has been described as changing in three stages. However, the number of stages may be appropriately changed to the position of the rotary shaft 47 with respect to the output shaft 51. Moreover, the stepless change which continues smoothly may be sufficient.

Next, the operation and effect of the spoiler device 1 will be described.
The spoiler device 1 includes a fixed spoiler 10, a movable spoiler 20, and a drive unit 30 that displaces the movable spoiler 20.

  The fixed spoiler 10 includes an under cover portion 12 that covers a lower portion of the engine compartment, has a function as an under cover, and is fixed to the vehicle frame. As a result, entry of foreign matter into the engine compartment is always suppressed. There is also an air rectification effect in the lower part of the engine compartment.

  The drive part 30 displaces only the movable spoiler 20 which does not have a function as an undercover. Therefore, since the weight of the object to be displaced by the drive unit 30 is lighter than the conventional one, the actuator 50 employed in the drive unit 30 can be made small. Thereby, the occupation space in the engine compartment 2 by the component of the spoiler apparatus 1 becomes small, and the arrangement | positioning freedom degree of another vehicle component increases.

  Furthermore, when a movable spoiler integrated with an under cover is employed as in the prior art, an opening is generated between the movable spoiler and the front bumper due to the movement of the movable spoiler. The opening extends to the entire vehicle width direction so as to communicate the outside, more precisely, the space ahead of the vehicle and the engine compartment. Therefore, the opening area of the opening is large, and there is a high risk that foreign matter will enter the engine compartment while the vehicle is running. For this reason, in the conventional configuration, in order to suppress the entry of foreign matter into the engine compartment through the opening, it is necessary to arrange a seal member that covers the opening.

  In that respect, according to the spoiler device 1 of the present example, the opening 15 is provided so as to overlap the first spoiler 11 in the front view of the vehicle. Thereby, compared with the conventional configuration, the entry of foreign matter into the engine compartment is suppressed while the vehicle is traveling. Moreover, the opening part 15 is only provided in two places in the vehicle width direction, and the support member 22 is only inserted. That is, since the opening area of the opening 15 is sufficiently small compared to the conventional opening, entry of foreign matter into the engine compartment is further suppressed.

  The movable spoiler 20 is displaced between a storage position stored in the storage unit 13 provided in the fixed spoiler 10 and a deployment position developed from the storage unit 13. When the movable spoiler 20 is in the retracted position, the second spoiler part 21 is in a positional relationship overlapping the first spoiler part 11 when viewed from the front of the vehicle. For this reason, although the aerodynamic effect by the 2nd spoiler part 21 is not acquired, since the aerodynamic effect is acquired by the fixed spoiler 10, a vehicle body is stabilized. When the movable spoiler 20 is in the retracted position, the top portion 21a of the second spoiler portion 21 is located above the lower edge portion of the rearward inclined wall 11b. For this reason, it becomes difficult for the air that passes from the front of the vehicle toward the rear under the rear inclined wall 11b to enter the storage portion 13. Accordingly, turbulence is less likely to occur around the storage unit 13.

  When the movable spoiler 20 is in the unfolded position, an aerodynamic effect is also obtained in the movable spoiler 20. That is, since the greater aerodynamic effect is obtained by the cooperation of the movable spoiler 20 and the fixed spoiler 10, the vehicle body becomes more stable. Even when the movable spoiler 20 is in the deployed position, if the top 21a of the second spoiler portion 21 is located above the lower edge of the rearward inclined wall 11b (when the vehicle speed is the speed A), the vehicle Since air passing from the front toward the rear does not easily enter the storage unit 13, turbulence hardly occurs around the storage unit 13.

  In the vehicle front view, an opening 15 that connects the engine compartment 2 and the storage portion 13 is provided in the second plate-like portion 12b that constitutes the storage portion 13 that is in a positional relationship overlapping the first spoiler portion 11, The support member 22 of the movable spoiler 20 was inserted into the opening 15. Thereby, the drive part 30 can displace the movable spoiler 20 via the support member 22. In addition, since the opening 15 has a positional relationship overlapping the first spoiler part 11 when viewed from the front of the vehicle, entry of foreign matter into the engine compartment 2 through the opening 15 is suppressed by traveling of the vehicle. .

  The drive unit 30 includes a link mechanism 40 and an actuator 50, and transmits the rotation of the output shaft 51 by driving the actuator 50 to the movable spoiler 20 via the link mechanism 40. The link mechanism 40 is a so-called lever crank mechanism in which a connecting rod 44 is interposed between a crank 43 fixed to the output shaft 51 and a first link 45 and a second link 46 that are longer than the crank 43. For this reason, since the movable spoiler 20 can be driven with a small driving force, a smaller actuator 50 can be employed.

  Further, as shown in FIG. 3, when the movable spoiler 20 is in the retracted position, the link mechanism 40, so that the crank 43 and the connecting rod 44 are aligned in the direction of gravity, that is, the crank 43 extends in the direction of gravity. As a result, the drive part 30 was comprised. Thereby, the rotational force due to the weight of the movable spoiler 20 is not input to the output shaft 51 via the connecting rod 44 and the crank 43. For this reason, since the position of the crank 43 is maintained without driving the actuator 50, the energy consumed in the actuator 50 is reduced accordingly. Further, it is not necessary to add a configuration for maintaining the position of the crank 43 or the position of the movable spoiler 20 separately.

In addition, you may change the said embodiment as follows.
In the above embodiment, the spats that reduce the resistance in the tire may be linked to the movable spoiler.

  That is, as shown in FIGS. 3 and 4, the spats 60 are fixed to the rear end portion of the support member 22, and interlock with the movable spoiler 20. 3 and 5, the spats 60 open the front of the front tire T when the movable spoiler 20 is in the retracted position, and the movable spoiler 20 is in the deployed position as shown in FIGS. 4 and 6. When positioned, it is positioned in front of the front tire T. That is, when the movable spoiler 20 is located at the unfolded position, the spats 60 and the front tire T overlap each other. As a result, when the movable spoiler 20 is deployed and a greater aerodynamic effect is to be obtained in cooperation with the fixed spoiler 10, the spats 60 are positioned in front of the front tire T to reduce the air resistance to the front tire T. Since it reduces, a higher aerodynamic effect can be obtained. Accordingly, the behavior of the vehicle while traveling is stabilized.

In the above embodiment, the link mechanism 40 is described as a lever crank mechanism, but a link mechanism other than the lever crank mechanism may be employed.
In the above embodiment, the crank 43 is positioned so as to extend in the gravitational direction when the movable spoiler 20 is positioned at the retracted position, but is positioned so as to extend in the gravitational direction when the movable spoiler 20 is positioned at the deployed position. Also good. In addition, the crank 43 may be positioned so as to extend in the direction of gravity only when the movable spoiler 20 is positioned at the deployed position.

In the above embodiment, the opening 15 may extend in the vehicle width direction.
In the above embodiment, a lip member or the like that follows the displacement of the support member 22 may be provided in the opening 15 to further suppress entry of foreign matter from the opening 15 into the engine compartment 2.

  In the above-described embodiment, the movable spoiler 20 located at the storage position does not exhibit the aerodynamic effect, but the movable spoiler 20 may exhibit the aerodynamic effect even at the storage position.

  In the above embodiment, the shape of the fixed spoiler 10 and the shape of the movable spoiler 20 may be changed as appropriate. For example, by making the dimensions of the forward inclined wall 11a and the backward inclined wall 11b shorter than those in the above embodiment, the vertical dimension of the storage unit 13 is reduced so that the movable spoiler 20 at the storage position exhibits an aerodynamic effect. May be. Further, for example, the protrusion 21b may be omitted, and the size of the second spoiler portion 21 in the front-rear direction can be reduced, so that the storage portion 13 can be downsized. In addition, the protrusion 21b contributes to the rectification effect.

DESCRIPTION OF SYMBOLS 1 ... Front spoiler device for vehicles, 2 ... Engine compartment, 4 ... Connecting rod, 10 ... Fixed spoiler, 11 ... First spoiler part, 11a ... Forward inclined wall, 11b ... Back inclined wall, 12 ... Under cover part, 12a ... First 1 plate-like part, 12b ... 2nd plate-like part, 12c ... 3rd plate-like part, 13 ... storage part, 15 ... opening part, 20 ... movable spoiler, 21 ... 2nd spoiler part, 21a ... top part, 21b ... protrusion , 22 ... support member (support part), 30 ... drive part, 40 ... link mechanism, 41 ... fixed side bracket, 42 ... movable side bracket, 43 ... crank, 44 ... connecting rod, 45 ... first link, 46 ... 2nd link, 47 ... rotating shaft, 50 ... actuator, 51 ... output shaft, 60 ... spats, T ... front tire.

Claims (5)

A fixed spoiler that functions as an undercover covering the lower part of the engine compartment;
A movable spoiler that is displaced between a storage position stored in a storage unit provided in the fixed spoiler and a deployment position developed from the storage unit;
A vehicle front spoiler device, comprising: an actuator provided in the engine compartment for displacing the movable spoiler between the retracted position and the deployed position. In the vehicle front spoiler device according to claim 1,
The fixed spoiler includes a first spoiler portion that overlaps the movable spoiler when viewed from the front of the vehicle when the movable spoiler is in the retracted position, and an under cover portion that is continuous to the rear of the first spoiler portion. ,
The movable spoiler has a second spoiler part and a support part continuous to the rear of the second spoiler part,
The storage unit is a part that is opened downward and stores the second spoiler unit,
Connecting the storage part and the engine compartment, and having an opening through which the support part is inserted,
The movable spoiler is a vehicle front spoiler device connected to the actuator via the support portion. The vehicle front spoiler device according to claim 1 or 2,
A vehicle front spoiler device comprising spats that are linked to the movable spoiler and that are displaced so as to overlap the front tire when viewed from the front of the vehicle as the movable spoiler is displaced from the retracted position to the deployed position. In the vehicle front spoiler device according to any one of claims 1 to 3,
A vehicle front spoiler device comprising a link mechanism interposed between the actuator and the movable spoiler. In the vehicle front spoiler device according to claim 4,
The link mechanism has a crank fixed to an output shaft on which the actuator rotates by driving,
The vehicle front spoiler device, wherein the crank is positioned so as to extend in a gravitational direction when the movable spoiler is located at the retracted position or the deployed position or both of these positions.

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