Wind direction adjusting device

Abstract

The present application provides a wind direction adjusting device in which the adjustment amount of the wind direction is not easily limited by the swing angle of the louvers. The wind direction adjusting device (1) has a cylindrical housing (3) in which a wind path (4) is formed. The wind direction adjusting device (1) has a shaft support body (5) having a rotation axis (X) in a direction intersecting the axial direction of the housing (3) and rotatably arranged in the wind path (4). The wind direction adjusting device (1) has louvers (6) having a rotation axis (Y) in a direction intersecting the rotation axis (X) of the shaft support body (5) and rotatably supported by the shaft support body (5). The wind direction adjusting device (1) has a fin portion (20) located at a position further upstream of the wind path (4) than the louvers (6) and rectifying the wind passing through the wind path (4) by rotating with the rotation of the shaft support body (5).

Description

Technical Field

[0001] The present invention relates to a wind direction adjustment device, the wind direction adjustment device having louvers supported by a shaft support body rotatably disposed in a housing, the louvers being able to rotate in a direction intersecting the rotation direction of the shaft support body. Background Technology

[0002] Conventionally, as an airflow adjustment device having an outlet for blowing air from an air conditioning unit used in vehicles such as automobiles, there is a known structure in which a cylindrical louver is provided inside a cylindrical housing, and the louver can be tilted in any direction by supporting the housing with a universal joint structure (for example, see Patent Document 1).

[0003] Patent Document 1: Japanese Patent Application Publication No. 2017-43172 (pp. 3-9) Figure 1 -6)

[0004] In the structure described in the aforementioned Patent Document 1, since it is a structure that is easily limited by the swing angle of the louvers, it is expected that the amount of wind direction adjustment will not be limited by the swing angle. Summary of the Invention

[0005] The present invention was made in view of this situation, and its object is to provide a wind direction adjustment device in which the adjustment amount of wind direction is not easily limited by the swing angle of the louvers.

[0006] [1] A wind direction adjustment device comprising: a cylindrical housing having an air passage formed inside the housing; a shaft support having a rotation axis in a direction intersecting the axial direction of the housing and rotatably disposed within the air passage; a louver having a rotation axis in a direction intersecting the rotation axis of the shaft support and rotatably supported on the shaft support; and a fin located upstream of the air passage from the louver, which rectifies the airflow passing through the air passage by rotating with the rotation of the shaft support.

[0007] [2] In the wind direction adjustment device described in [1], the fin has an integral fin that is integrally formed with the shaft support body.

[0008] [3] In the wind direction adjustment device described in [1], the fin is formed along at least one direction that intersects the direction of wind passage within the wind path.

[0009] [4] In the wind direction adjustment device described in [2], the fins are formed along at least one direction that intersects the direction of wind passage within the wind path.

[0010] [5] In the wind direction adjustment device described in [3], the fin is formed in the direction along the rotation axis of the shaft support.

[0011] [6] In the wind direction adjustment device described in [4], the fin is formed in the direction along the rotation axis of the shaft support.

[0012] [7] In any one of [1] to [6], the wind direction adjustment device has a split fin portion that is connected to the shaft support body via a connecting rod.

[0013] Invention Effects

[0014] According to the wind direction adjustment device described in [1], the wind direction can be changed from the upstream side of the wind path, which is closer to the louver than the louver, so even if the louver's swing angle is limited, the amount of wind direction adjustment can be ensured, and the amount of wind direction adjustment is not easily limited by the louver's swing angle.

[0015] According to the wind direction adjustment device described in [2], in addition to the effect of the wind direction adjustment device described in [1], a fin-shaped part that rotates with the rotation of the shaft support body can also be realized with a simple structure.

[0016] According to the wind direction adjustment device described in [3], in addition to the effect of the wind direction adjustment device described in [1], the fins can also effectively change the wind direction, thereby further improving the wind direction performance.

[0017] According to the wind direction adjustment device described in [4], in addition to the effect of the wind direction adjustment device described in [2], the fins can also effectively change the wind direction, thereby further improving the wind direction performance.

[0018] According to the wind direction adjustment device described in [5], in addition to the effect of the wind direction adjustment device described in [3], it can also make the rotation direction of the shaft support body that rotates with the louvers roughly the same as the rotation direction of the fin, thus further improving the wind direction performance.

[0019] According to the wind direction adjustment device described in [6], in addition to the effect of the wind direction adjustment device described in [4], it can also make the rotation direction of the shaft support body that rotates with the louvers roughly the same as the rotation direction of the fin, thus further improving the wind direction performance.

[0020] According to the wind direction adjustment device described in [7], in addition to the effects of the wind direction adjustment device described in any one of [1] to [6], it is also possible to make multiple split fins rotate in conjunction with the rotation of the shaft support body that rotates with the louvers, thereby further improving the wind direction performance. Attached Figure Description

[0021] Figure 1This indicates the state in which the louvers of the wind direction adjustment device according to one embodiment of the present invention swing in one direction. Figure 5 Sectional view of position II.

[0022] Figure 2 This indicates the neutral state of the louvers of the upwind adjustment device. Figure 5 Sectional view of position II.

[0023] Figure 3 yes Figure 5 The sectional view corresponding to position II-II.

[0024] Figure 4 This is a three-dimensional view showing the shaft support of the upwind adjustment device.

[0025] Figure 5 This is a three-dimensional diagram showing the upwind adjustment device.

[0026] Explanation of reference numerals in the attached figures

[0027] 1-Wind direction adjustment device, 3-Housing, 4-Air duct, 5-Shaft support, 6-Louvre, 20-Fin part, 22-Integral fin part, 25-Separate fin part, 27-Connecting rod, X, Y-Rotation axis. Detailed Implementation

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0029] exist Figure 5 In the diagram, 1 represents an airflow adjustment device. The airflow adjustment device 1 is also referred to as an exhaust vent, ventilation device, or air regulator, and it adjusts the direction of airflow from an air conditioning unit, etc. Hereinafter, for clarity, the airflow adjustment device 1 will be described as follows: the lower side of the airflow outlet is designated as the front side, the frontal side, or the near side; the opposite side, the upper side of the airflow receiver, is designated as the rear side, the rear side, or the inner side; and the left and right directions or width directions, and the up and down directions, as viewed from the front, will be specified. In this embodiment, the airflow adjustment device 1 is applicable to air conditioning systems used in vehicles such as automobiles. The airflow adjustment device 1 can be positioned anywhere, but in the accompanying drawings, it is positioned such that arrow FR represents the front side, arrow RR represents the rear side, arrow L represents the left side, arrow R represents the right side, arrow U represents the upper side, and arrow D represents the lower side. These directions are illustrated only as examples and can be appropriately changed depending on the installation position or orientation of the airflow adjustment device 1.

[0030] The wind direction adjusting device 1 in this embodiment is circular. The wind direction adjusting device 1 has a cylindrical housing 3. An air passage 4 for airflow is formed inside the housing 3. For example... Figure 2 and Figure 3As shown, a shaft support 5 is disposed within the air passage 4. The shaft support 5 has a rotation axis X in a direction that intersects or is orthogonal to the axial direction relative to the housing 3, i.e., the front-to-back direction of the airflow, and is capable of rotation. In the illustrated example, the rotation axis X is in the left-to-right direction. Furthermore, louvers 6 are rotatably supported on the shaft support 5. Louvers 6 have a rotation axis Y in a direction that intersects or is orthogonal to the rotation axis X of the shaft support 5. In the illustrated example, the rotation axis Y is in the up-down direction. Therefore, by forming a universal joint-like structure between the shaft support 5 and the louvers 6, the louvers 6 can rotate in any direction—up, down, left, or right—through the rotation of the shaft support 5 relative to the housing 3 and the rotation of the louvers 6 relative to the shaft support 5.

[0031] The housing 3 has an inlet, i.e., a receiving port 10, on the upstream (rear) side of the air passage 4, which serves as one end side, to receive air from the air conditioning unit and the like into the air passage 4. Furthermore, the housing 3 has a configuration port 11 for arranging louvers 6 on the downstream (front) side of the air passage 4, which serves as the other end side.

[0032] A bearing portion 12 is formed inside the housing 3 to rotatably support the shaft support 5. The shaft support 5 is directly rotatably supported on the housing 3 via the bearing portion 12. In this embodiment, the bearing portion 12 is formed along the central axis of the housing 3. In the illustrated example, the bearing portion 12 is formed in a cylindrical shape and is arranged coaxially with the housing 3. The bearing portion 12 is connected to and held on the inner surface of the housing 3 by a connecting portion 13. The connecting portion 13 is formed radially along the radial direction of the housing 3, connecting the inner surface of the housing 3 and the outer surface of the bearing portion 12. A pair of support portions 14 are formed at the front end of the bearing portion 12, by which the shaft support 5 is supported.

[0033] The shaft support 5 is formed in a cylindrical or annular shape. A pair of supported portions 17 are formed on the outer periphery of the shaft support 5. The supported portions 17 are rotatably supported on the support portion 14 of the bearing portion 12. The pair of supported portions 17 are located coaxially on opposite sides of each other with reference to the central axis of the shaft support 5. In this embodiment, the supported portion 17 is provided as a cylindrical or cylindrical shaft portion and the support portion 14 is provided as a hole portion for the supported portion 17 to be inserted, but it is not limited to this, and the supported portion 17 can be provided as a hole portion and the support portion 14 can be provided as a shaft portion.

[0034] In this embodiment, a fin-shaped portion 20 is provided, which rotates with the rotation of the shaft support 5 to rectify the airflow passing through the air passage 4, thereby adjusting the airflow direction. The fin-shaped portion 20 is located further upstream of the louver 6 on the rear side of the air passage 4. Preferably, the fin-shaped portion 20 is located mainly on the rear side of the upstream side relative to the shaft support 5. That is, the fin-shaped portion 20 is located on the side opposite to the louver 6 with the shaft support 5 as a reference. This allows for a wider swing angle of the louver 6.

[0035] The fin portion 20 can be integral with or separate from the shaft support body 5. In the illustrated example, an integral fin portion 22, which is integrally formed with the shaft support body 5, is provided on the fin portion 20. The integral fin portion 22 is formed in the shape of a plate. The integral fin portion 22 is integrally formed with the outer periphery of the shaft support body 5. That is, the integral fin portion 22 is configured to rotate together with the shaft support body 5 in the same direction about the rotation axis X. In this embodiment, the integral fin portion 22 rotates in the up-down direction according to the rotation of the shaft support body 5. The integral fin portion 22 is formed along at least one direction that is intersecting or orthogonal to the direction of airflow within the air passage 4. Preferably, the integral fin portion 22 is formed in the direction along the rotation axis X of the shaft support body 5. The integral fin portion 22 extends on opposite sides with respect to the central axis of the shaft support body 5. That is, in the illustrated example, the integral fin portion 22 extends on the left and right sides of the shaft support body 5, respectively.

[0036] like Figure 3 and Figure 4 As shown, in this embodiment, the integrated fin portion 22 integrally comprises: a first extension portion 22a, which is connected to the shaft support 5 and extends laterally; a second extension portion 22b, which is connected to the first extension portion 22a and extends along the lateral direction of the bearing portion 12, further upstream of the air passage 4 than the shaft support 5; and a third extension portion 22c, which is connected to the second extension portion 22b and extends towards the inner surface of the housing 3. Through the first extension portion 22a to the third extension portion 22c, the integrated fin portion 22 is formed in a crank shape when viewed from the rectifying surface side. With this shape, the integrated fin portion 22 avoids interference with the bearing portion 12 while preventing interference with the louvers 6 during rotation. That is, the side opposite the louvers 6 of the integrated fin portion 22 becomes an interference avoidance portion 23 to prevent interference with the louvers 6. The interference avoidance portion 23 is a cut-out portion formed by cutting a portion of the integrated fin portion 22 on the louver 6 side and the inner surface side of the housing 3.

[0037] And, as Figure 1 and Figure 2As shown, in this embodiment, a separate fin portion 25, separate from the shaft support body 5, is provided on the fin portion 20. In the illustrated example, the separate fin portion 25 is formed as a quadrilateral plate. The separate fin portion 25 is rotatably supported on the housing 3. That is, the separate fin portion 25 has a rotating portion 26 that is rotatably supported on the rotation bearing portion of the housing 3. In this embodiment, the rotating portion 26 is a cylindrical or cylindrical shaft portion, and the rotation bearing portion on the housing 3 side is a hole portion for inserting the rotating portion 26, but it is not limited to this; the rotating portion 26 can be a hole portion and the rotation bearing portion can be a shaft portion. In this embodiment, the separate fin portion 25 is located separately from the shaft support body 5 and is connected to the shaft support body 5 via a connecting rod 27, and can rotate in the same direction as the shaft body 5 in conjunction with the rotation of the shaft support body 5. That is, the separate fin portion 25 has a connecting rod connection portion 28 that is rotatably supported on the connecting rod 27. In this embodiment, the split fin portion 25 rotates in the up and down direction according to the rotation of the shaft support body 5, and remains parallel or approximately parallel to the integral fin portion 22.

[0038] The connecting rod 27 is formed in the shape of an elongated strip. A connecting rod bearing portion 30 is formed on the connecting rod 27, which is rotatably connected to the connecting rod connecting portion 28 of the split fin portion 25. In this embodiment, the connecting rod bearing portion 30 is a hole and the connecting rod connecting portion 28 is a cylindrical or cylindrical shaft inserted into the connecting rod bearing portion 30, but this is not a limitation; the connecting rod bearing portion 30 can be a shaft and the connecting rod connecting portion 28 can be a hole. In the illustrated example, the connecting rod bearing portion 30 is connected to the split fin portion 25 on the rear side, which is upstream of the air passage 4, relative to the rotating portion 26. That is, in the split fin portion 25, the connecting rod connecting portion 28 is located on the rear side, upstream of the air passage 4, relative to the rotating portion 27.

[0039] Furthermore, a shaft support body connecting portion 32 is formed on the connecting rod 27, which is rotatably connected to the shaft support body 5. In this embodiment, the shaft support body connecting portion 32 and the integral fin portion 22 formed integrally with the shaft support body 5 are rotatably connected. That is, the shaft support body connecting portion 32 is rotatably connected to the connecting rod connecting portion 34 formed on the integral fin portion 22. In the illustrated example, the connecting rod connecting portion 34 is disposed in the third extension 22c of the integral fin portion 22 at the end opposite to the inner surface of the housing 3. In this embodiment, the connecting rod connecting portion 34 is provided as a cylindrical or cylindrical shaft portion, and the shaft support body connecting portion 32 is provided as a hole portion into which the connecting rod connecting portion 34 is inserted, but it is not limited to this, and the connecting rod connecting portion 34 can be provided as a hole portion and the shaft support body connecting portion 32 can be provided as a shaft portion.

[0040] Preferably, multiple auxiliary fin-shaped portions 25 are provided. In this embodiment, the split fin-shaped portions 25 are arranged in the same number on opposite sides of the shaft support body 5. In the illustrated example, two split fin-shaped portions 25 are arranged on the upper side of one side and the lower side of the other side relative to the shaft support body 5. The split fin-shaped portions 25 are located separately from the bearing portion 12.

[0041] And, as Figure 3 and Figure 4 As shown, a pair of support portions 36 for supporting louvers 6 protrude from the outer periphery of the shaft support body 5. The pair of support portions 36 are coaxially arranged on opposite sides of each other in a direction that intersects or is orthogonal to the axis of the pair of supported portions 17, with the central axis of the shaft support body 5 as a reference.

[0042] like Figures 1 to 3 As shown, the louver 6 supported by the support portion 36 is also referred to as a blade body, housing, or fin, etc., and controls the direction of the airflow blowing out from the airflow adjustment device 1. In this embodiment, the louver 6 is generally cylindrical, supported by the shaft support portion 5 at a position coaxial with the housing 3, and exposed at the mounting opening 11. Preferably, a portion of the louver 6 protrudes from the mounting opening 11 to the outside of the housing 3, but it may also be entirely located in the air passage 4 inside the housing 3. In this embodiment, the louver 6 is configured to have multiple—in the illustrated example, two—cylindrical fin portions 40 in a concentric or coaxial manner, and cylindrical louver bearing portions 41 rotatably supported by the shaft support portion 5, and these fin portions 40 are as follows Figure 5 As shown, the fins are connected to the louvered bearing portion 41 via one or more radially arranged connecting fin portions 42. A vent, communicating with the air passage 4 and expelling air, is created through the spaces between the fin portions 40, the inner surface of the innermost fin portion 40, and the connecting fin portions 42. Preferably, the outermost fin portion 40 has a spherical outer surface, which is separated from the housing 3's mounting opening 11 by a small gap.

[0043] like Figure 1 As shown, the fin portion 40 is shorter in the axial direction. In this embodiment, the straightening surface of the fin portion 40 is shorter than that of the fin portion 20. That is, the fin portion 20 is longer than the fin portion 40 of the louver 6 in the straightening direction.

[0044] The louver bearing portion 41 is located at the center of the louver 6. A louver support portion 44 is formed on the louver bearing portion 41 and is rotatably connected to the support portion 36 of the shaft support body 5. The louver support portion 44 is located at the rear end of the louver bearing portion 41 on the side of the shaft support body 5. In this embodiment, the louver support portion 44 is a hole and the support portion 36 is a cylindrical or cylindrical shaft that is inserted into the louver support portion 44, but it is not limited to this. The louver support portion 44 may also be a shaft and the support portion 36 may be a hole.

[0045] Preferably, an operating knob 46 is installed on the louver 6, which is a knob for the user to adjust the swing angle of the louver 6. More preferably, the operating knob 46 is installed in the center of the louver 6, i.e., the louver bearing portion 41. In the illustrated example, the operating knob 46 is formed into a cylindrical shape and is installed at the rear end of the louver bearing portion 41.

[0046] More preferably, the airflow adjustment device 1 includes a shut-off valve 47, which serves as an opening and closing body for opening and closing the airflow path 4. The shut-off valve 47 can be opened and closed by operating the knob 46. The shut-off valve 47 controls the amount of air blown out from the airflow adjustment device 1 by controlling the opening and closing amount of the airflow path 4. The shut-off valve 47 is disposed in the housing 3 on the rear side, which is further upstream than the bearing part 12.

[0047] In the illustrated example, a pair of shut-off valves 47 are provided, for example, formed as a semi-circular shape with the outer edge along the inner surface of the housing 3. That is, the shut-off valves 47 are configured as half of each opening and closing air passage 4. In the shut-off valves 47, the straight diameter portions are coaxial with each other and rotatably supported on the housing 3. In this embodiment, the shut-off valves 47 are rotatably supported on the housing 3 in the vertical position and can rotate in the left and right direction. As an example, the shut-off valves 47 are connected to the drive unit 48. The drive unit 48 is, for example, a gear, configured such that it rotates in conjunction with the operating knob 46 by rotating the operating knob 46 circumferentially relative to the louver bearing 41. Therefore, the opening and closing amount of the shut-off valves 47 can be set according to the rotation angle of the operating knob 46.

[0048] And, as Figure 2 and Figure 3 As shown by the solid line, in the air direction adjustment device 1, when the shut-off valve 47 is set to the open state and the louver 6 is set to the neutral (neutral) state coaxial with the housing 3, the air received from the receiving port 10 passes through the air passage 4, is rectified by the fin portion 40 and the connecting fin portion 42 of the louver 6, and flows from the vent towards the front of the occupant.

[0049] Furthermore, by turning the operating knob 46 and operating the louver 6 up, down, left, and right, the rotation of the shaft support 5 caused by the external force applied from the louver 6 and the rotation of the louver 6 relative to the shaft support 5, such as... Figure 1 or Figure 3As shown by the double-dotted line, the louver 6 can rotate in any direction (up, down, left, right) around two mutually orthogonal axes.

[0050] At this time, the fin-shaped portion 20 rotates along with the rotation of the shaft support body 5. In this embodiment, as the shaft support body 5 rotates, the integral fin-shaped portion 22, which is formed integrally with the shaft support body 5, rotates in the same direction as the shaft support body 5. Furthermore, by rotating the integral fin-shaped portion 22 through the shaft support body 5, the connecting rod 27 connected to the integral fin-shaped portion 22 moves vertically in this embodiment along the rotation direction of the integral fin-shaped portion 22, which is also the rotation direction of the shaft support body 5. In addition, by moving the connecting rod 27, an external force is applied to the separate fin-shaped portion 25 connected to the connecting rod 27 in the direction of movement of the connecting rod 27, thereby causing it to rotate.

[0051] As a result, in this embodiment, such as Figure 1 As shown, in the same direction as the rotation direction of the shaft support 5, the integral fin-shaped part 22 and the separate fin-shaped part 25 rotate while remaining parallel or approximately parallel to each other. Therefore, they tilt in approximately the same direction as the fin-shaped part 20, the fin portion 40 of the louvers 6, and the connecting fin portion 42, as... Figure 1 As indicated by arrow W, the wind direction is changed by fin 20 from a position upstream of the wind path 4, which is closer to the louver 6.

[0052] Thus, when the louvers 6 are rotated, the wind flows along the direction in which the central axis of the louvers 6 intersects with the central axis of the housing 3, from the vent towards the direction in which it is tilted relative to the front of the occupant.

[0053] In addition, by turning the operating knob 46 and rotating it circumferentially relative to the louver 6, the shut-off valve 47 is rotated via the drive unit 48. The shut-off valve 47 adjusts the opening and closing amount of the air passage 4 according to the rotation angle of the operating knob 46, thereby adjusting the air volume blown out from the vent.

[0054] Thus, according to one embodiment, a shaft support 5 is rotatably arranged within the air passage 4, having a rotation axis X in a direction intersecting the axial direction of the housing 3, and a louver 6 is rotatably supported in the air direction adjustment device 1, having a rotation axis Y in a direction intersecting the rotation axis X of the shaft support 5. By providing a fin 20 that rectifies the airflow through the air passage 4 by rotating with the shaft support 5, located upstream of the air passage 4 above the louver 6, the air direction can be changed from the upstream side of the air passage 4 above the louver 6 via the fin 20. Therefore, even if the swing angle of the louver 6 is limited, the amount of air direction adjustment can be ensured, and the amount of air direction adjustment is not easily limited by the swing angle of the louver 6. Furthermore, even without increasing the swing angle of the louver 6, the air direction performance is not impaired. Therefore, the maximum swing angle of the louver 6 can be set to be small, thus avoiding limitations imposed by the design or layout of the air direction adjustment device 1.

[0055] By providing an integral fin portion 22 that is integrally formed with the shaft support body 5 in the fin portion 20, the fin portion 20 that rotates with the rotation of the shaft support body 5 can be realized with a simple structure.

[0056] By forming the fin 20 along at least one direction that intersects with the direction of wind passage within the wind path 4, the wind direction can be effectively changed by the fin 20, thereby improving wind direction performance.

[0057] In particular, by forming a fin-shaped portion 20 in the direction along the rotation axis X of the shaft support 5, the rotation direction of the shaft support 5 as the louver 6 rotates is approximately the same as the rotation direction of the fin-shaped portion 20, thus improving wind direction performance.

[0058] By providing separate fins 25 connected to the fin 20 via the shaft support 5 and the connecting rod 27, multiple separate fins 25 can be linked to the rotation of the shaft support 5 as the louvers 6 rotate, thereby improving wind direction performance.

[0059] In addition, in one embodiment described above, if the fin portion 20, particularly the integral fin portion 22, is formed along at least one direction that intersects with the direction of wind passage within the air passage 4, it can be formed, for example, in a cross shape.

[0060] Furthermore, in the fin-shaped portion 20, at least one of the integral fin-shaped portion 22 and the separate fin-shaped portion 25 may be provided.

[0061] Furthermore, the shut-off valve 47 is not a necessary structure; other structures for opening and closing the air passage 4 can be used.

[0062] Furthermore, the wind direction adjustment device 1 is not limited to vehicles, but can also be used for adjusting the wind direction of any air conditioning unit, etc.

[0063] Industrial availability

[0064] This invention can be preferably used, for example, as an airflow adjustment device for automotive air conditioning.

Claims

1. A wind direction adjustment device, characterized in that, At least: A cylindrical shell with air passages formed inside; A shaft support having a rotation axis in a direction intersecting the axial direction of the housing and rotatably disposed within the air duct; A louver having a rotation axis intersecting the rotation axis of the shaft support and rotatably supported by the shaft support; and An integral fin-shaped portion formed with the shaft support body is located upstream of the air passage, and it rectifies the airflow passing through the air passage by rotating in the same direction as the shaft support body around the rotation axis of the shaft support body as the shaft support body rotates.

2. The wind direction adjustment device according to claim 1, characterized in that, The integral fin is formed along at least one direction that intersects the direction of wind passage within the air passage.

3. The wind direction adjustment device according to claim 2, characterized in that, The integral fin is formed in the direction along the rotation axis of the shaft support.

4. The wind direction adjustment device according to any one of claims 1 to 3, characterized in that, It also has a split fin-shaped portion that is connected to the shaft support via a connecting rod.

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