Rectification device

Abstract

To inhibit the load for the flow deflecting body to be rotated in a retraction direction due to action of an external force from becoming higher.SOLUTION: In a flow deflecting device 10, when an external force is applied to a flow deflecting body in a deployed position or a retreated position to rotate the flow deflecting body in a retraction direction B, limiting projections 22A of a stand 22 are maintained in an inserted state into limiting recesses 24A of a case 24 or rotational projections 44A of a clutch 44 are maintained in an inserted state into rotational recesses 42B of an output gear 42. Accordingly, the limiting projections 22A are not disengaged from the limiting recesses 24A or the rotational projections 44 are not disengaged from the rotational recesses 42B, thereby, a load for the flow deflecting body to be rotated in the retraction direction can be inhibited from becoming higher.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an airflow straightening device that suppresses airflow to the front wheels of a vehicle. [Background technology]

[0002] In the vehicle straightening device described in Patent Document 1 below, the convex portion (pressed portion) of the second collar member on the drive unit side is inserted into the concave portion of the first collar member on the straightening member side by the biasing force of a spring, and an external force is applied to the straightening member, causing the first collar member to rotate relative to the second collar member, thereby allowing the straightening member to rotate.

[0003] Here, in this vehicle straightening device, in order for the straightening member to be rotated by the application of an external force (the first collar member to be rotated relative to the second collar member), a load is required to disengage the convex portion of the second collar member from the concave portion of the first collar member against the spring force. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-93785 A Summary of the Invention [Problem to be solved by the invention]

[0005] In consideration of the above, an object of the present invention is to provide a flow straightening device capable of suppressing an increase in the load caused when the flow straightening device is rotated in the storage direction by the action of an external force. [Means for solving the problem]

[0006] The straightening device according to the first aspect of the present invention is a straightening device that is deployed in front of a front wheel of a vehicle by rotating in a deployment direction to suppress an air flow to the front wheel, and is stored in a vehicle body by rotating in a storage direction, and the straightening device has a function of rotating the straightening device by engaging the vehicle body side with the straightening side. Can be madeAt the same time, the engagement between the vehicle body side and the flow straightening side is released, and the flow straightening is rotated. I can't let a rotation mechanism in which an external force is applied to the flow straightener in the deployed position to release the engagement between the vehicle body side and the flow straightener side, thereby rotating the flow straightener in the storage direction, and an external force is applied to the flow straightener in the storage position to rotate the flow straightener in the storage direction while the vehicle body side and the flow straightener side are engaged; a rotation mechanism in which the vehicle body side and the flow straightener side are engaged to make it possible to restrict the rotation of the flow straightener, and the engagement between the vehicle body side and the flow straightener side is released to make it impossible to restrict the rotation of the flow straightener, and an external force is applied to the flow straightener in the storage position to release the engagement between the vehicle body side and the flow straightener side in The straightener is rotated in the storage direction, and an external force is applied to the straightener in the deployed position, and the straightener is rotated in the storage direction with the vehicle body side and the straightener side engaged with each other.

[0007] The second aspect of the present invention is a straightening device of the first aspect of the present invention, wherein when the straightening device is placed in the deployed position, the rotation mechanism limits the rotation of the straightening device in the storage direction and the limiting mechanism limits the rotation of the straightening device in the deployment direction.

[0008] A third aspect of the present invention is a straightening device of the first or second aspect of the present invention, wherein when the straightening device is placed in a stored position, the rotation mechanism limits the rotation of the straightening device in the deployment direction and the limiting mechanism limits the rotation of the straightening device in the storage direction.

[0009] A fourth aspect of the present invention is a straightening device according to any one of the first to third aspects of the present invention, wherein when the straightening device in the deployed position is rotated in the storage direction by the action of an external force, the restriction mechanism allows the straightening device to rotate.

[0010] A straightening device of a fifth aspect of the present invention is a straightening device of any one of the first to fourth aspects of the present invention, in which the rotation mechanism allows the straightening device to rotate when the straightening device in the stored position is rotated in the storage direction by the action of an external force. Effect of the Invention

[0011] In the first aspect of the present invention, the flow straightener is rotated in a deployment direction, whereby the flow straightener is deployed in front of the front wheels of the vehicle and suppresses the airflow toward the front wheels. Furthermore, the flow straightener is rotated in a storage direction, whereby the flow straightener is stored in the vehicle body.

[0012] In addition, the rotation mechanism is engaged with the vehicle body side and the flow straightener side to rotate the flow straightener. Can be made At the same time, the engagement between the vehicle body side and the flow straightener side is released, and the flow straightener is rotated. I can't let Furthermore, the limiting mechanism is engaged with the vehicle body side and the flow straightener side to be able to limit the rotation of the flow straightener, and is disengaged from the vehicle body side and the flow straightener side to be unable to limit the rotation of the flow straightener.

[0013] Here, the flow straightener in the deployed position is subjected to an external force, and the limiting mechanism The vehicle body side and the flow control side With the rotation mechanism engaged, The vehicle body side and the flow control side When the engagement of the restricting mechanism is released, the flow regulator is rotated in the storage direction. The vehicle body side and the flow control side Since the engagement is not released, it is possible to suppress an increase in the load caused by rotating the flow regulator in the storing direction.

[0014] Furthermore, the flow regulator in the storage position is subjected to an external force, and the rotation mechanism The vehicle body side and the flow control side With the limiting mechanism engaged The vehicle body side and the flow control side When the engagement between the flow regulator and the rotation mechanism is released, the flow regulator is rotated in the storage direction. The vehicle body side and the flow control side Since the engagement is not released, it is possible to suppress an increase in the load caused by rotating the flow regulator in the storing direction.

[0015] In the straightening device of the second aspect of the present invention, when the straightening device is placed in the deployed position, the rotation mechanism limits the rotation of the straightening device in the storage direction, and the limiting mechanism limits the rotation of the straightening device in the deployment direction. This makes it possible to limit the rotation of the straightening device in the deployment direction and the storage direction, thereby suppressing rattling of the straightening device.

[0016] In the straightening device of the third aspect of the present invention, when the straightening device is placed in the stored position, the rotation mechanism limits the rotation of the straightening device in the deployment direction, and the limiting mechanism limits the rotation of the straightening device in the storage direction. This makes it possible to limit the rotation of the straightening device in the deployment direction and the storage direction, thereby suppressing rattling of the straightening device.

[0017] In the straightening device according to the fourth aspect of the present invention, when the straightening member in the deployed position is rotated in the storage direction by the action of an external force, the limiting mechanism allows the straightening member to rotate. This makes it possible to effectively prevent the load required for the straightening member to rotate in the storage direction from increasing.

[0018] In the straightening device according to the fifth aspect of the present invention, when the straightening member in the storage position is rotated in the storage direction by the application of an external force, the rotation mechanism allows the straightening member to rotate. This makes it possible to effectively prevent the load applied to the straightening member from increasing when the straightening member is rotated in the storage direction. [Brief description of the drawings]

[0019] [Figure 1] 1 is a side view showing a front part of a vehicle according to an embodiment of the present invention, as viewed from the outside in a vehicle width direction. [Diagram 2] 1 is an exploded perspective view showing an airflow straightening device according to an embodiment of the present invention, as viewed from below and inward in a vehicle width direction. [Diagram 3] (A) and (B) are cross-sectional views showing the main parts of a flow straightening device according to an embodiment of the present invention, where (A) shows the flow straightening device when placed in a stored position, and (B) shows the flow straightening device when placed in a deployed position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Fig. 1 shows a side view of the front of a vehicle 12 according to an embodiment of the present invention as seen from the outside in the vehicle width direction (to the right of the vehicle), and Fig. 2 shows an exploded perspective view of a straightening device 10 according to this embodiment as seen from the inside and below in the vehicle width direction. Note that in the drawings, the front of the vehicle is indicated by an arrow FR, the outside in the vehicle width direction (to the right of the vehicle) is indicated by an arrow OUT, and the upward direction is indicated by an arrow UP.

[0021] As shown in FIG. 1, the airflow straightening device 10 according to this embodiment is installed inside the front end portion of a vehicle body 12A, and disposed in front of a front wheel 12B of a vehicle 12.

[0022] As shown in Fig. 2, the flow straightening device 10 is provided with a resin flow straightening unit 14 (air spats), and the flow straightening unit 14 is disposed in a storage position (position indicated by a dashed line in Fig. 1). The vehicle front end of the flow straightening unit 14 is an assembly box 14A having a substantially rectangular parallelepiped box shape as an assembly part, and the inside of the assembly box 14A is open to the inside in the vehicle width direction. The portion of the flow straightening unit 14 rearward of the assembly box 14A is a flow straightening unit 14B having a substantially rectangular parallelepiped box shape, and the flow straightening unit 14B is integrated with the assembly box 14A at the inner end in the vehicle width direction, and the inside is open to the upper side and the rear side of the vehicle.

[0023] A resin attachment 16 having a generally rectangular cylindrical shape is fitted into the assembly box 14A as an assembly member, and the peripheral wall of the attachment 16 is fixed to the bottom wall (the outer wall in the vehicle width direction) of the assembly box 14A. The inside of the attachment 16 is generally cylindrical, and the inside of the attachment 16 is open on both sides in the vehicle width direction. A disk-shaped partition wall (not shown) is integrally formed within the attachment 16, and the partition wall divides the inside of the attachment 16 into an outer part in the vehicle width direction and an inner part in the vehicle width direction.

[0024] A drive unit 18 is attached to the attachment 16, and the drive unit 18 is fixed within the front end portion of the vehicle body 12A.

[0025] The drive unit 18 is provided with a metallic, substantially cylindrical stand 22 as a restricted member (rotating shaft) constituting the limiting mechanism 20, and the outer end of the stand 22 in the vehicle width direction is expanded in diameter coaxially. The outer end of the stand 22 in the vehicle width direction is fitted into the attachment 16 and fixed to the partition wall of the attachment 16, and the attachment 16 and the flow regulator 14 are rotatable integrally with the stand 22 in the deployment direction A and the storage direction B with the stand 22 as the central axis.

[0026] At the outer end of the stand 22 in the vehicle width direction, a plurality of (four in this embodiment) limiting protrusions 22A (see FIG. 3(A)) having a trapezoidal cross section are integrally formed as restricted portions, and the plurality of limiting protrusions 22A are arranged at equal intervals in the circumferential direction of the stand 22. The limiting protrusions 22A protrude inward in the vehicle width direction, and are curved along the circumferential direction of the stand 22. The deployment direction A side of the limiting protrusions 22A is arranged perpendicular to the circumferential direction of the stand 22, and the storage direction B side of the limiting protrusions 22A is inclined in a direction toward the inside in the vehicle width direction as it approaches the deployment direction A.

[0027] A resin case 24 having a substantially rectangular parallelepiped box shape is provided on the inner side of the attachment 16 in the vehicle width direction as a limiting member constituting the limiting mechanism 20, and the inside of the case 24 is open to the inner side in the vehicle width direction. A stand 22 penetrates and is fitted into a vehicle front portion of a bottom wall (outer wall in the vehicle width direction) of the case 24, and the stand 22 is rotatably supported by the bottom wall of the case 24 and is restricted by the bottom wall of the case 24 from moving inward in the vehicle width direction.

[0028] A plurality of (four in this embodiment) limiting recesses 24A (see FIG. 3(A)) having a trapezoidal cross section are formed around the stand 22 on the bottom wall of the case 24, and the plurality of limiting recesses 24A are arranged at equal intervals in the circumferential direction of the stand 22. The limiting recesses 24A are open to the outside in the vehicle width direction, and extend in the circumferential direction of the stand 22. The deployment direction A side end face of the limiting recess 24A is arranged perpendicular to the circumferential direction of the stand 22, and the storage direction B side end face of the limiting recess 24A is inclined in a direction toward the inside in the vehicle width direction as it approaches the deployment direction A. The limiting protrusion 22A of the stand 22 is inserted (engaged) into the limiting recess 24A, and the limiting protrusion 22A abuts against the storage direction B side end face of the limiting recess 24A, restricting the rotation of the stand 22 in the storage direction B.

[0029] A resin motor base 26 serving as a holding member is fixed inside the vehicle width direction inner part of the case 24. A substantially cylindrical storage tube 26A with a bottom is formed in the vehicle front part of the motor base 26, and the inside of the storage tube 26A is open to the outside in the vehicle width direction, and the stand 22 is coaxially stored in the storage tube 26A. A substantially elliptical storage tube 26B with a bottom is integrally formed in the vehicle rear part of the motor base 26, and the inside of the storage tube 26B is open to the inside in the vehicle width direction.

[0030] A resin cover 28 having a generally rectangular parallelepiped box shape is provided on the inner side of the case 24 and the motor base 26 in the vehicle width direction as a covering member, and the inside of the cover 28 is open to the outer side in the vehicle width direction. The inner end of the case 24 in the vehicle width direction is fitted into and fixed to the outer end of the cover 28 in the vehicle width direction, and the cover 28 covers the inner sides of the case 24 and the motor base 26 in the vehicle width direction.

[0031] The case 24 and the cover 28 are fixed within the front end of the vehicle body 12A, thereby fixing the drive unit 18 within the front end of the vehicle body 12A.

[0032] A motor 30 serving as a drive device is provided in the space between the case 24 and the cover 28. The motor 30 is provided with a substantially elliptical cylindrical main body 30A, which is fitted into and held in a retaining tube 26B of the motor base 26 from the inside in the vehicle width direction. An output shaft 30B extends outward in the vehicle width direction from the main body 30A, and the output shaft 30B penetrates a bottom wall (outer wall in the vehicle width direction) of the retaining tube 26B and extends outward in the vehicle width direction of the motor base 26. When the motor 30 is driven, the output shaft 30B is rotated.

[0033] The case 24 is provided with a gear mechanism 32 .

[0034] A resin first-stage worm 34 is provided in the gear mechanism 32 on the outer side of the motor 30 in the vehicle width direction, and the outer end of the first-stage worm 34 in the vehicle width direction is rotatably supported on the bottom wall of the case 24. The output shaft 30B of the motor 30 is coaxially inserted into the first-stage worm 34 from the inner side in the vehicle width direction, and when the output shaft 30B is rotated, the first-stage worm 34 rotates integrally with the output shaft 30B.

[0035] In the gear mechanism 32, a metallic output worm 36 is provided above the first-stage worm 34, and the output worm 36 is rotatably supported between the bottom wall of the case 24 and the motor base 26. A resin first-stage gear 38 (worm wheel) is coaxially supported below the output worm 36, and the first-stage gear 38 rotates integrally with the output worm 36. The first-stage gear 38 is meshed with the first-stage worm 34, and as the first-stage worm 34 rotates, the first-stage gear 38 and the output worm 36 rotate integrally.

[0036] The gear mechanism 32 is provided with a metallic output gear 42 (worm wheel) as a rotating member constituting the rotation mechanism 40, on the vehicle front side of the output worm 36. The stand 22 passes through and is fitted coaxially with the output gear 42, and the output gear 42 is rotatably supported by the stand 22. The output gear 42 is movable in the vehicle width direction (axial direction) relative to the stand 22, and the output gear 42 abuts against the bottom wall of the case 24 from the inside in the vehicle width direction, restricting movement outward in the vehicle width direction. The output gear 42 is meshed with the output worm 36 to restrict rotation, and the output worm 36 is rotated to rotate the output gear 42.

[0037] A cylindrical recess 42A is formed coaxially on the inner side surface of the output gear 42 in the vehicle width direction, and the recess 42A is open to the inside in the vehicle width direction. A plurality of rotation recesses 42B (see FIG. 3(A)) (four in this embodiment) are formed as rotation portions on the outer side surface of the recess 42A in the vehicle width direction, and the plurality of rotation recesses 42B are arranged at equal intervals in the circumferential direction of the output gear 42. The rotation recess 42B is open to the inside in the vehicle width direction, and the rotation recess 42B extends in the circumferential direction of the output gear 42. The rotation recess 42B has a trapezoidal cross section, and both end faces of the rotation recess 42B are inclined in the direction toward the inside in the vehicle width direction as they move toward the outside in the circumferential direction of the output gear 42.

[0038] A metallic, substantially cylindrical clutch 44 is provided on the inner side of the output gear 42 in the vehicle width direction as a rotated member constituting the rotation mechanism 40. The stand 22 is coaxially inserted through the clutch 44, and the clutch 44 is supported by the stand 22 so as to be rotatable together with the stand 22, and is movable in the vehicle width direction relative to the stand 22, and is fitted into a recess 42A of the output gear 42.

[0039] A plurality of rotating protrusions 44A (see FIG. 3(A)) (four in this embodiment) are formed on the outer surface of the clutch 44 in the vehicle width direction as rotated parts, and the plurality of rotating protrusions 44A are arranged at equal intervals in the circumferential direction of the clutch 44. The rotating protrusions 44A protrude outward in the vehicle width direction, and are curved along the circumferential direction of the clutch 44. The rotating protrusions 44A have a trapezoidal cross section, and both side surfaces of the rotating protrusions 44A are inclined in a direction toward the outside in the vehicle width direction as they approach the inside of the rotating protrusions 44A in the circumferential direction of the clutch 44. The rotating protrusions 44A are inserted (engaged) into the rotating recessed portion 42B of the output gear 42, and the rotating protrusions 44A abut against the end surface of the rotating recessed portion 42B on the deployment direction A side, restricting the rotation of the clutch 44 in the deployment direction A.

[0040] The stand 22 is coaxially inserted into a metallic compression coil spring 46 serving as a biasing member, on the inner side of the clutch 44 in the vehicle width direction. A metallic push nut 48 having a substantially circular ring plate shape serving as an engagement member is fitted and fixed to the inner end of the stand 22 in the vehicle width direction, and the compression coil spring 46 is hung between the push nut 48 and the clutch 44. The compression coil spring 46 is compressed in the axial direction, and biases the push nut 48 and the stand 22 inward in the vehicle width direction, and biases the clutch 44 toward the output gear 42 (outward in the vehicle width direction).

[0041] Next, the operation of this embodiment will be described.

[0042] In the rectifier 10 configured as above, the motor 30 is driven in the forward direction in the drive unit 18, and the output shaft 30B, the first-stage worm 34, the first-stage gear 38, and the output worm 36 are rotated, so that the output gear 42 rotates in the deployment direction A, and the end face of the rotation recess 42B of the output gear 42 on the storage direction B side abuts against the rotation protrusion 44A of the clutch 44. Therefore, the clutch 44, the stand 22, and the attachment 16 rotate integrally with the output gear 42 in the deployment direction A, and the rectifier 14 rotates in the deployment direction A. Furthermore, the limiting protrusion 22A of the stand 22 abuts against the end face of the limiting recess 24A of the case 24 on the deployment direction A side, and the rotation of the stand 22 in the deployment direction A is restricted (see FIG. 3(B)), so that the rotation of the rectifier 14 in the deployment direction A is restricted, and the rectifier 14 is disposed at the deployment position (the position indicated by the two-dot chain line in FIG. 1). For this reason, the straightening section 14B of the flow straightener 14 is positioned on the underside of the vehicle body 12A, in front of the front wheels 12B of the vehicle 12, to suppress the wind (air flow) caused by the vehicle 12 traveling toward the front wheels 12B (by directing the traveling wind to the underside of the front wheels 12B), thereby suppressing the increase in air pressure in front of the front wheels 12B, and thereby suppressing the air resistance and lift of the vehicle 12.

[0043] Meanwhile, in the driving device 18, the motor 30 is reversely driven to rotate the output shaft 30B, the first-stage worm 34, the first-stage gear 38, and the output worm 36, so that the output gear 42 rotates in the storage direction B, and the end face of the rotation recess 42B of the output gear 42 on the deployment direction A side abuts against the rotation protrusion 44A of the clutch 44. As a result, the clutch 44, the stand 22, and the attachment 16 rotate integrally with the output gear 42 in the storage direction B, and the flow straightener 14 rotates in the storage direction B. Furthermore, the limiting protrusion 22A of the stand 22 abuts against the end face of the limiting recess 24A of the case 24 on the storage direction B side, and the rotation of the stand 22 in the storage direction B is restricted (see FIG. 3(A)), so that the rotation of the flow straightener 14 in the storage direction B is restricted, and the flow straightener 14 is disposed in the storage position (dashed line position in FIG. 1).

[0044] Furthermore, when the flow straightener 14 is disposed in the deployed position, an external force of a predetermined value or more is applied to the flow straightener 14B of the flow straightener 14 from a convex portion of the running surface of the vehicle 12 toward the upper side, so that the clutch 44 is moved inward in the vehicle width direction against the biasing force of the compression coil spring 46, the rotating convex portion 44A of the clutch 44 is disengaged (disengaged) from the rotating concave portion 42B of the output gear 42 in the storage direction B, and the limiting convex portion 22A of the stand 22 is rotated in the limiting concave portion 24A of the case 24 in the storage direction B (see the two-dot chain line in FIG. 3(B)). As a result, the flow straightener 14, the attachment 16, the stand 22, and the clutch 44 are rotated in the storage direction B, and the flow straightener 14, the attachment 16, and the drive unit 18 are protected.

[0045] Thereafter, when the flow straightener 14 is made rotatable in the deployment direction A, the motor 30 is driven in the reverse direction, causing the output gear 42 to rotate in the storage direction B, and the rotation convex portion 44A of the clutch 44 to abut against the end face of the rotation concave portion 42B of the output gear 42 on the storage direction B side. Then, the motor 30 is driven in the forward direction, causing the output gear 42, the clutch 44, and the stand 22 to rotate in the deployment direction A, causing the flow straightener 14 to rotate (return) to the deployment position.

[0046] Furthermore, when the flow straightener 14 is arranged in the storage position, an external force of a predetermined value or more is applied upward from a convex portion of the running surface of the vehicle 12 to the flow straightener 14B of the flow straightener 14, so that the stand 22 is moved outward in the vehicle width direction against the biasing force of the compression coil spring 46, the limiting convex portion 22A of the stand 22 is disengaged (disengaged) from the limiting concave portion 24A of the case 24 in the storage direction B, and the rotating convex portion 44A of the clutch 44 is rotated in the storage direction B in the rotating concave portion 42B of the output gear 42 (see the two-dot chain line in FIG. 3(A)). Therefore, the flow straightener 14, the attachment 16, the stand 22, and the clutch 44 are rotated in the storage direction B, and the flow straightener 14, the attachment 16, and the drive unit 18 are protected.

[0047] Thereafter, when the flow straightener 14 is made rotatable in the deployment direction A, the motor 30 is driven in the forward direction, so that the output gear 42 is rotated in the deployment direction A. As a result, the end face of the rotation recess 42B of the output gear 42 on the side of the deployment direction B comes into contact with the rotation protrusion 44A of the clutch 44, and the clutch 44 and the stand 22 are rotated in the deployment direction A together with the output gear 42, so that the flow straightener 14 is rotated (returned) to the storage position. Then, the motor 30 is driven in the reverse direction, so that the output gear 42 is rotated in the storage direction B, and the end face of the rotation recess 42B of the output gear 42 on the side of the deployment direction A comes into contact with the rotation protrusion 44A of the clutch 44.

[0048] Here, when an external force is applied to the flow straightener 14 in the deployed position to rotate in the storage direction B, the rotation convex portion 44A of the clutch 44 is disengaged from the rotation concave portion 42B of the output gear 42 with the limiting protrusion 22A of the stand 22 inserted into the limiting concave portion 24A of the case 24 (see the two-dot chain line in FIG. 3(B)). Therefore, by preventing the limiting protrusion 22A from disengaging from the limiting concave portion 24A, it is possible to suppress an increase in the load (force resisting the biasing force of the compression coil spring 46) required for rotating the flow straightener 14 from the deployed position in the storage direction B.

[0049] Moreover, when the flow straightener 14 in the deployed position is rotated in the storage direction B by the action of an external force, the limiting protrusion 22A of the stand 22 rotates without being hindered by the limiting recess 24A of the case 24 (the limiting recess 24A permits the rotation of the limiting protrusion 22A). Therefore, it is possible to effectively prevent the load required for the flow straightener 14 to rotate from the deployed position in the storage direction B from increasing.

[0050] Furthermore, when the flow straightener 14 in the storage position is rotated in the storage direction B by the action of an external force, the limiting protrusion 22A of the stand 22 is disengaged from the limiting recess 24A of the case 24 (see the two-dot chain line in FIG. 3(A)) with the rotation protrusion 44A of the clutch 44 inserted into the rotation recess 42B of the output gear 42. Therefore, by preventing the rotation protrusion 44A from disengaging from the rotation recess 42B, it is possible to suppress an increase in the load (force resisting the biasing force of the compression coil spring 46) required for rotating the flow straightener 14 in the storage direction B from the storage position.

[0051] Moreover, when the flow straightener 14 in the storage position is rotated in the storage direction B by the action of an external force, the rotation convex portion 44A of the clutch 44 rotates without being hindered by the rotation concave portion 42B of the output gear 42 (the rotation concave portion 42B permits the rotation of the rotation convex portion 44A). Therefore, it is possible to effectively prevent the load caused by the flow straightener 14 rotating in the storage direction B from the storage position from increasing.

[0052] Furthermore, when the flow straightener 14 is placed in the deployed position (see FIG. 3(B)), the rotation convex portion 44A of the clutch 44 abuts against the storage direction B side end face of the rotation concave portion 42B of the output gear 42, restricting the rotation of the clutch 44 in the storage direction B, thereby restricting the rotation of the flow straightener 14 in the storage direction B. Moreover, the limiting convex portion 22A of the stand 22 abuts against the deployment direction A side end face of the limiting concave portion 24A of the case 24, restricting the rotation of the stand 22 in the deployment direction A, thereby restricting the rotation of the flow straightener 14 in the deployment direction A. For this reason, the rotation of the flow straightener 14 from the deployed position in the deployment direction A and the storage direction B can be restricted, and wobbling of the flow straightener 14 can be suppressed.

[0053] Furthermore, when the flow straightener 14 is arranged at the storage position (see FIG. 3(A)), the rotation convex portion 44A of the clutch 44 abuts against the deployment direction A side end face of the rotation concave portion 42B of the output gear 42, restricting the rotation of the clutch 44 in the deployment direction A, thereby restricting the rotation of the flow straightener 14 in the deployment direction A. Moreover, the limiting convex portion 22A of the stand 22 abuts against the storage direction B side end face of the limiting concave portion 24A of the case 24, restricting the rotation of the stand 22 in the storage direction B, thereby restricting the rotation of the flow straightener 14 in the storage direction B. Therefore, the rotation of the flow straightener 14 from the storage position in the deployment direction A and the storage direction B can be restricted, and wobbling of the flow straightener 14 can be suppressed.

[0054] In this embodiment, the limiting protrusion 22A is provided on the stand 22, and the limiting recess 24A is provided on the case 24. However, the limiting recess 24A may be provided on the stand 22, and the limiting protrusion 22A may be provided on the case 24. In this case, the storage direction B side surface of the limiting protrusion 22A and the storage direction B side end surface of the limiting recess 24A may be disposed perpendicular to the circumferential direction of the stand 22, and the deployment direction A side surface of the limiting protrusion 22A and the deployment direction A side end surface of the limiting recess 24A may be inclined in a direction toward the inside in the vehicle width direction as they approach the deployment direction A.

[0055] In the present embodiment, the output gear 42 is provided with the rotation recessed portion 42B, and the clutch 44 is provided with the rotation protruding portion 44A. However, the output gear 42 may be provided with the rotation protruding portion 44A, and the clutch 44 may be provided with the rotation recessed portion 42B. [Explanation of symbols]

[0056] 10... straightening device, 12... vehicle, 12A... vehicle body, 12B... front wheel, 14... straightening device, 20... limiting mechanism, 40... rotation mechanism

Claims

1. a flow straightener that is deployed in front of a front wheel of a vehicle by rotating in a deployment direction to suppress an air flow to the front wheel, and that is stored in a vehicle body by rotating in a storage direction; a rotation mechanism in which the vehicle body side and the flow straightening side are engaged to rotate the flow straightener, and the engagement between the vehicle body side and the flow straightening side is released to prevent the flow straightener from being rotated, and an external force is applied to the flow straightener in the deployed position to release the engagement between the vehicle body side and the flow straightening side to rotate the flow straightener in the storage direction, and an external force is applied to the flow straightener in the storage position to rotate the flow straightener in the storage direction while the vehicle body side and the flow straightening side are engaged; a limiting mechanism that engages a vehicle body side with the flow straightening side to limit the rotation of the flow straightener, and disengages the vehicle body side from the flow straightening side to make the rotation of the flow straightener unlimitable, and an external force is applied to the flow straightener in the stored position to release the engagement between the vehicle body side and the flow straightening side so that the flow straightener rotates in the stored direction, and an external force is applied to the flow straightener in the deployed position to rotate the flow straightener in the stored direction while the vehicle body side and the flow straightening side are engaged; A rectifier comprising:

2. 2. The straightening device according to claim 1, wherein when the straightening device is disposed at the deployed position, the rotation mechanism limits rotation of the straightening device in the storage direction, and the limiting mechanism limits rotation of the straightening device in the deployment direction.

3. 3. The straightening device according to claim 1, wherein when the straightening device is disposed at the storage position, the rotation mechanism limits rotation of the straightening device in the deployment direction, and the limiting mechanism limits rotation of the straightening device in the storage direction.

4. 4. The straightening device according to claim 1, wherein the restriction mechanism permits rotation of the straightening device when the straightening device is in the deployed position and rotated in the storage direction by the action of an external force.

5. 5. The straightening device according to claim 1, wherein the rotation mechanism permits rotation of the straightening device when the straightening device is in the stored position and rotated in the stored direction by the action of an external force.

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