Wind direction adjustment device

Abstract

To provide a wind direction adjustment device on which an adjustment amount of wind direction is less likely to be limited by the swinging angle of a louver.SOLUTION: A wind direction adjustment device 1 includes a cylindrical case body 3 with an air duct 4 formed on the inside. The wind direction adjustment device 1 has a shaft support body 5 rotatably arranged in the air duct 4 with a rotational axis X in a direction intersecting the axial direction of the case body 3. The wind direction adjustment device 1 has a louver 6 rotatably supported by the shaft support body 5 with a rotational axis Y in a direction intersecting the rotational axis X of the shaft support body 5. The wind direction adjustment device 1 has a fin-like part 20 which is positioned on the upstream side of the air duct 4 with respect to the louver 6 and rectifies air passing through the air duct 4 by rotating in response to rotation of the shaft support body 5.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an airflow direction adjustment device having a louver supported by a pivotal support body pivotally arranged on a case body so as to be pivotable in a direction intersecting the pivotal direction of the pivotal support body. [Background technology]

[0002] Conventionally, a known air direction adjustment device that is provided at the air outlet of an air conditioner used in vehicles such as automobiles has a cylindrical louver inside a cylindrically formed case body, and the louver is supported on the case body by a universal joint structure, allowing the louver to be tilted in any direction (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-43172 A (Pages 3-9, Figures 1-6) Summary of the Invention [Problem to be solved by the invention]

[0004] The configuration described in Patent Document 1 above is a structure that is susceptible to limitations on the swing angle of the louvers, and therefore it is desirable to prevent limitations on the amount of adjustment of the wind direction due to limitations on the swing angle.

[0005] The present invention has been made in consideration of the above-mentioned points, and has an object to provide a wind direction adjustment device in which the amount of wind direction adjustment is not easily limited by the swing angle of the louvers. [Means for solving the problem]

[0006] The air direction adjustment device described in claim 1 comprises a cylindrical case body having an air passage formed therein, a pivotal support body arranged in the air passage and rotatably having a rotation axis in a direction intersecting the axial direction of the case body, a louver supported on the pivotal support body and rotatably having a rotation axis in a direction intersecting the rotation axis of the pivotal support body, and a fin-shaped portion located upstream of the air passage from the louver and rotating in conjunction with the rotation of the pivotal support body to straighten the air passing through the air passage.

[0007] The airflow direction adjustment device according to claim 2 is the airflow direction adjustment device according to claim 1, wherein the fin-shaped portion has an integral fin-shaped portion formed integrally with the shaft support body.

[0008] The airflow direction adjustment device according to claim 3 is the airflow direction adjustment device according to claim 1 or 2, wherein the fin-shaped portion is formed along at least one direction intersecting the passing direction of the air in the air passage.

[0009] The airflow direction adjustment device according to claim 4 is the airflow direction adjustment device according to claim 3, wherein the fin-shaped portion is formed in a direction along the rotation axis of the shaft support body.

[0010] The airflow direction adjustment device according to claim 5 is the airflow direction adjustment device according to any one of claims 1 to 4, wherein the fin-shaped portion has a separate fin-shaped portion connected to the shaft support body via a link. Effect of the Invention

[0011] According to the wind direction adjustment device described in claim 1, the fin-shaped portion allows the wind direction to be changed from the upstream side of the wind passage relative to the louvers, so that even if the swing angle of the louvers is limited, the amount of wind direction adjustment can be secured, and the amount of wind direction adjustment is less likely to be limited by the swing angle of the louvers.

[0012] According to the airflow direction adjusting device of claim 2, in addition to the effect of the airflow direction adjusting device of claim 1, the fin-shaped portion that rotates in conjunction with the rotation of the shaft support body can be realized with a simple configuration.

[0013] According to the airflow direction adjustment device of claim 3, in addition to the effect of the airflow direction adjustment device of claim 1 or 2, the airflow direction can be changed efficiently by the fin-shaped portion, and the airflow direction performance can be further improved.

[0014] According to the wind direction adjustment device described in claim 4, in addition to the effect of the wind direction adjustment device described in claim 3, the rotation direction of the shaft support body accompanying the rotation of the louver can be made to approximately coincide with the rotation direction of the fin-shaped portion, thereby further improving the wind direction performance.

[0015] According to the wind direction adjustment device described in claim 5, in addition to the effect of the wind direction adjustment device described in any one of claims 1 to 4, it becomes possible, for example, to link a large number of separate fin-shaped portions to the rotation of the shaft support body that accompanies the rotation of the louver, thereby further improving wind direction performance. [Brief description of the drawings]

[0016] [Figure 1] 6 is a cross-sectional view taken at a position corresponding to II in FIG. 5, showing a state in which the louver of the airflow direction adjusting device according to the embodiment of the present invention is swung in one direction. [Diagram 2] 6 is a cross-sectional view taken at a position corresponding to II in FIG. 5, showing a neutral state of the louver of the airflow direction adjustment device. [Diagram 3] 6 is a cross-sectional view taken along a line corresponding to II-II in FIG. 5. [Figure 4] FIG. 3 is a perspective view showing a shaft support body of the airflow direction adjustment device. [Diagram 5] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0018] In FIG. 5, 1 indicates an airflow direction adjustment device. The airflow direction adjustment device 1 is also called an air outlet, a ventilator, a register, etc., and adjusts the blowing direction of air from an air conditioner or the like. In the following, in order to clarify the explanation, the leeward side of the airflow direction adjustment device 1, which is the side from which airflow blows out, is defined as the front side, the front side, or the near side, and the opposite side, that is, the windward side, which is the side that receives airflow, is defined as the rear side, the back side, or the far side, and the left-right direction or width direction as viewed from the front side, and the up-down direction are defined. In this embodiment, the airflow direction adjustment device 1 is applied to an air conditioner for a vehicle such as an automobile. The airflow direction adjustment device 1 may be disposed in any position, but in the drawings, it is disposed so that the side indicated by the arrow FR is the front side, the side indicated by the arrow RR is the rear side, the side indicated by the arrow L is the left side, the side indicated by the arrow R is the right side, the side indicated by the arrow U is the upper side, and the side indicated by the arrow D is the lower side. These directions are merely illustrated as examples, and are to be changed as appropriate depending on the installation position and installation direction of the airflow direction adjustment device 1.

[0019] The airflow direction adjustment device 1 of this embodiment is round. The airflow direction adjustment device 1 has a cylindrical case body 3. Inside the case body 3, an air passage 4 through which air passes is formed. As shown in Figs. 2 and 3, a shaft support body 5 is arranged in the air passage 4. The shaft support body 5 is rotatable about a rotation axis X in a direction intersecting or perpendicular to the axial direction of the case body 3, that is, the front-rear direction in which air passes. In the illustrated example, the rotation axis X is in the left-right direction. In addition, a louver 6 is rotatably supported on the shaft support body 5. The louver 6 has a rotation axis Y in a direction intersecting or perpendicular to the rotation axis X of the shaft support body 5. In the illustrated example, the rotation axis Y is in the up-down direction. Therefore, the shaft support structure of the shaft support body 5 and the louver 6 is formed in the shape of a universal joint, so that the louver 6 can be rotated in any direction, up-down, left-right, by the rotation of the shaft support body 5 relative to the case body 3 and the rotation of the louver 6 relative to the shaft support body 5.

[0020] Case body 3 has intake port 10, which is an inlet for receiving air from an air conditioner or the like into air passage 4, at one end, that is, the upstream side (rear side) of air passage 4. Case body 3 also has arrangement port 11, where louvers 6 are arranged, at the other end, that is, the downstream side (front side) of air passage 4, i.e., at the most downstream side.

[0021] A bearing portion 12 that rotatably supports the shaft support body 5 is formed inside the case body 3. The shaft support body 5 is directly rotatably supported by the bearing portion 12 on the case body 3. In this embodiment, the bearing portion 12 is formed along the central axis of the case body 3. In the illustrated example, the bearing portion 12 is formed in a cylindrical shape and arranged coaxially with the case body 3. The bearing portion 12 is connected to and held by the connecting portion 13 on the inner surface of the case body 3. The connecting portion 13 is formed radially along the radial direction of the case body 3 and connects the inner surface of the case body 3 and the outer surface of the bearing portion 12. A pair of support portions 14 is formed at the front end portion of the bearing portion 12, and the shaft support body 5 is supported by these support portions 14.

[0022] The shaft support body 5 is formed in a cylindrical or annular shape. A pair of supported parts 17 are formed on the outer periphery of the shaft support body 5. The supported parts 17 are rotatably supported by the support part 14 of the bearing part 12. The pair of supported parts 17 are coaxially located at positions opposite to each other with respect to the central axis of the shaft support body 5. In this embodiment, the supported parts 17 are columnar or cylindrical shaft parts, and the support part 14 is a hole part into which the supported parts 17 are inserted, but this is not limiting, and the supported parts 17 may be a hole part and the support part 14 a shaft part.

[0023] In this embodiment, fin-like portions 20 are provided which rotate in conjunction with the rotation of pivot support 5 to straighten the air passing through air passage 4 and adjust the air direction. Fin-like portions 20 are located on the upstream side of air passage 4, rearward, relative to louvers 6. Preferably, fin-like portions 20 are located mainly on the upstream side, rearward, relative to pivot support 5. In other words, fin-like portions 20 are located on the opposite side of louvers 6 with respect to pivot support 5. This allows the louvers 6 to have a wide swing angle.

[0024] The fin-like portion 20 may be integral with the shaft support 5 or may be separate. In the illustrated example, the fin-like portion 20 has an integral fin-like portion 22 formed integrally with the shaft support 5. The integral fin-like portion 22 is formed in a plate shape. The integral fin-like portion 22 is formed integrally with the outer periphery of the shaft support 5. That is, the integral fin-like portion 22 is configured to rotate in the same direction as the shaft support 5 around the rotation axis X. In this embodiment, the integral fin-like portion 22 rotates in the vertical direction in response to the rotation of the shaft support 5. The integral fin-like portion 22 is formed along at least one direction that intersects or is perpendicular to the wind passing direction in the air passage 4. Preferably, the integral fin-like portion 22 is formed in a direction along the rotation axis X of the shaft support 5. The integral fin-like portions 22 extend in opposite directions with respect to the central axis of the shaft support 5. That is, in the illustrated example, the integral fin portions 22 extend on both the left and right sides of the shaft support body 5 .

[0025] As shown in Figs. 3 and 4, in this embodiment, the integral fin-shaped portion 22 integrally includes a first extension portion 22a that is connected to the pivot support 5 and extends laterally, a second extension portion 22b that is connected to the first extension portion 22a and extends along the side of the bearing portion 12 toward the upstream side of the air passage 4 from the pivot support 5, and a third extension portion 22c that is connected to the second extension portion 22b and extends toward the inner surface of the case body 3. The first extension portion 22a to the third extension portion 22c form the integral fin-shaped portion 22 in a crank shape when viewed from the straightening surface side. This shape allows the integral fin-shaped portion 22 to avoid the bearing portion 12 and not to interfere with the louver 6 when the louver 6 rotates. That is, the side of the integral fin-shaped portion 22 facing the louver 6 is an interference avoidance portion 23 that avoids interference with the louver 6. The interference avoidance portion 23 is a cutout portion formed by cutting out a portion of the integral fin portion 22 on the louver 6 side and on the inner surface side of the case body 3 .

[0026] As shown in Figs. 1 and 2, in this embodiment, the fin portion 20 is provided with a separate fin portion 25 that is separate from the shaft support 5. In the illustrated example, the separate fin portion 25 is formed in a rectangular plate shape. The separate fin portion 25 is rotatably supported by the case body 3. That is, the separate fin portion 25 has a rotating portion 26 that is rotatably supported by the rotating receiver of the case body 3. In this embodiment, the rotating portion 26 is a columnar or cylindrical shaft portion, and the rotating receiver on the case body 3 side is a hole portion into which the rotating portion 26 is inserted, but this is not limited thereto, and the rotating portion 26 may be a hole portion and the rotating receiver may be a shaft portion. In this embodiment, the separate fin portion 25 is located away from the shaft support 5 and is connected to the shaft support 5 by a link 27, and is rotatable in the same direction as the shaft support 5 in conjunction with the rotation of the shaft support 5. That is, separate fin portion 25 has a link connection portion 28 that is rotatably supported by link 27. In this embodiment, separate fin portion 25 is rotated in the vertical direction in response to rotation of pivot support 5, and remains parallel or approximately parallel to integrated fin portion 22.

[0027] The link 27 is formed in a longitudinal shape. The link 27 is formed with a link receiving portion 30 that is rotatably connected to the link connecting portion 28 of the separate fin-shaped portion 25. In the present embodiment, the link receiving portion 30 is a hole portion, and the link connecting portion 28 is a columnar or cylindrical shaft portion that is inserted into the link receiving portion 30. However, the present invention is not limited to this, and the link receiving portion 30 may be a shaft portion, and the link connecting portion 28 may be a hole portion. In the illustrated example, the link receiving portion 30 is connected to the separate fin-shaped portion 25 at the rear side, which is upstream of the rotating portion 26 in the air passage 4. That is, in the separate fin-shaped portion 25, the link connecting portion 28 is located at the rear side, which is upstream of the air passage 4, with respect to the rotating portion 27.

[0028] Further, the link 27 is formed with a shaft support body connecting portion 32 that is rotatably connected to the shaft support body 5 side. In this embodiment, the shaft support body connecting portion 32 is rotatably connected to the integral fin-shaped portion 22 that is integrally formed with the shaft support body 5. That is, the shaft support body connecting portion 32 is rotatably connected to the link connecting portion 34 that is formed on the integral fin-shaped portion 22. In the illustrated example, the link connecting portion 34 is disposed at the end of the third extension portion 22c of the integral fin-shaped portion 22 that faces the inner surface of the case body 3. In this embodiment, the link connecting portion 34 is a columnar or cylindrical shaft portion, and the shaft support body connecting portion 32 is a hole portion into which the link connecting portion 34 is inserted, but this is not limiting, and the link connecting portion 34 may be a hole portion and the shaft support body connecting portion 32 may be a shaft portion.

[0029] Preferably, a plurality of auxiliary fin-like portions 25 are provided. In this embodiment, the separate fin-like portions 25 are arranged in equal numbers on opposite sides of the shaft support 5. In the example shown in the figure, two separate fin-like portions 25 are arranged on each of the upper side, which is one side, and the lower side, which is the other side, of the shaft support 5. The separate fin-like portions 25 are positioned away from the bearing portion 12.

[0030] 3 and 4, a pair of support parts 36 for supporting the louvers 6 protrude from the outer periphery of the shaft support body 5. The pair of support parts 36 are coaxially arranged at positions opposite to each other with respect to the central axis of the shaft support body 5 in a direction intersecting or perpendicular to the axis of the pair of supported parts 17.

[0031] As shown in Figs. 1 to 3, the louver 6 supported by the support 36 is also called a vane, a housing, or a fin, and controls the direction of air blown out from the airflow direction adjustment device 1. In this embodiment, the louver 6 is substantially cylindrical, supported by the pivot 5 in a position coaxial with the case body 3, and exposed to the placement opening 11. Preferably, the louver 6 protrudes partially from the placement opening 11 to the outside of the case body 3, but may be entirely located in the air passage 4 inside the case body 3. In this embodiment, the louver 6 has a plurality of cylindrical fin portions 40, two in the illustrated example, and a cylindrical louver bearing portion 41 rotatably supported by the pivot 5, concentrically or coaxially, and these fin portions 40 and the louver bearing portion 41 are connected by one or more radial connecting fin portions 42, as shown in Fig. 5. Between the fin portions 40 and the inner surface of the innermost fin portion 40, and the connecting fin portion 42, an air vent that communicates with the air passage 4 and through which air is blown out is defined. Preferably, the outer surface of the outermost fin portion 40 is formed in a spherical shape, and this outer surface is located at the position of the arrangement opening 11 of the case body 3 and is separated from the arrangement opening 11 via a small gap.

[0032] 1, the fin portion 40 is formed to be short in the axial direction. In this embodiment, the fin portion 40 is formed to have a shorter flow straightening surface than the fin-shaped portion 20. In other words, the fin-shaped portion 20 is formed to be longer in the flow straightening direction than the fin portion 40 of the louver 6.

[0033] The louver bearing portion 41 is located at the center of the louver 6. The louver bearing portion 41 is formed with a louver support portion 44 that is rotatably connected to the support portion 36 of the shaft support body 5. The louver support portion 44 is located near the end of the louver bearing portion 41 on the shaft support body 5 side, i.e., near the rear end portion. In this embodiment, the louver support portion 44 is a hole portion, and the support portion 36 is a columnar or cylindrical shaft portion inserted into the louver support portion 44, but this is not limited to the above, and the louver support portion 44 may be a shaft portion, and the support portion 36 may be a hole portion.

[0034] Preferably, the louver 6 is fitted with an operation knob 46, which is a knob that allows the user to adjust the swing angle of the louver 6. More preferably, the operation knob 46 is fitted to the center of the louver 6, i.e., the louver bearing portion 41. In the illustrated example, the operation knob 46 is formed in a cylindrical shape and is fitted to the rear end portion of the louver bearing portion 41.

[0035] More preferably, the airflow direction adjustment device 1 includes a shutoff valve 47 which is an opening / closing body for opening and closing the air passage 4, and the shutoff valve 47 can be opened and closed by the operation knob 46. The shutoff valve 47 controls the amount of air blown out from the airflow direction adjustment device 1 by controlling the amount of opening / closing of the air passage 4. The shutoff valve 47 is disposed on the rear side of the case body 3, which is upstream of the bearing portion 12.

[0036] In the illustrated example, a pair of shut valves 47 are provided, and are formed, for example, in a semicircular shape with an outer edge along the inner surface of the case body 3. That is, the shut valves 47 are configured to open and close half of the air passage 4, respectively. The shut valves 47 are supported by the case body 3 so that their straight diameter portions are coaxial with each other and can be rotated. In this embodiment, the shut valves 47 are supported by the case body 3 so as to be rotatable at upper and lower positions and can be rotated in the left and right directions. As an example, the shut valves 47 are connected to a drive unit 48. The drive unit 48 is, for example, a gear, and is configured to rotate in conjunction with the operation knob 46 by rotating it in the circumferential direction relative to the louver bearing portion 41. Therefore, the opening and closing amount of the shut valve 47 is set according to the rotation angle of the operation knob 46.

[0037] When the airflow direction adjustment device 1 is in a neutral state in which the shut valve 47 is open and the louver 6 is positioned coaxially with the case body 3, as shown by the solid lines in Figures 2 and 3, the air received through the air inlet 10 passes through the air path 4 and is straightened by the fin portion 40 and the connecting fin portion 42 of the louver 6 before flowing through the air vent toward the front of the occupant.

[0038] In addition, by pinching the operating knob 46 and operating the louver 6 up, down, left, or right, the louver 6 can be rotated in any direction up, down, left, or right about two mutually perpendicular axes, as shown by the dotted lines in Figure 1 or Figure 3, due to the rotation of the support body 5 due to the external force applied from the louver 6 and the rotation of the louver 6 relative to the support body 5.

[0039] At this time, the fin portion 20 rotates in accordance with the rotation of the pivot support 5. In this embodiment, the integral fin portion 22 formed integrally with the pivot support 5 rotates in the same direction as the pivot support 5 in accordance with the rotation of the pivot support 5. Furthermore, as the integral fin portion 22 rotates with the pivot support 5, the link 27 connected to the integral fin portion 22 moves in the vertical direction in this embodiment along the rotation direction of the integral fin portion 22, i.e., the rotation direction of the pivot support 5. Furthermore, as the link 27 moves, an external force is applied to the separate fin portion 25 connected to the link 27 in the movement direction of the link 27, causing it to rotate.

[0040] 1, in this embodiment, the integrated fin portion 22 and the separate fin portion 25 rotate in the same direction as the rotation direction of the shaft support 5 while remaining parallel or approximately parallel to each other. Thus, the fin portion 20, the fin portion 40 of the louver 6, and the connecting fin portion 42 are inclined in approximately the same direction, and the airflow direction is changed by the fin portion 20 from a position upstream of the louver 6 in the air passage 4, as shown by the arrow W in FIG.

[0041] When the louvers 6 are rotated in this manner, the central axis of the louvers 6 is aligned in a direction intersecting the central axis of the case body 3, and air flows from the ventilation opening along the central axis of the louvers 6 in a direction inclined relative to the front of the occupant.

[0042] Furthermore, by pinching the operating knob 46 and twisting it circumferentially relative to the louver 6, the shut valve 47 is rotated via the drive unit 48, and the shut valve 47 adjusts the amount of opening and closing of the air passage 4 according to the twisting angle of the operating knob 46, thereby adjusting the amount of air blown out from the ventilation hole.

[0043] Thus, according to one embodiment, in the airflow direction adjustment device 1 in which the pivot support 5 is rotatably arranged in the airflow passage 4 with a rotation axis X in a direction intersecting the axial direction of the case body 3, and the louver 6 is rotatably supported on the pivot support 5 with a rotation axis Y in a direction intersecting the rotation axis X of the pivot support 5, the fin-shaped portion 20 that rotates with the rotation of the pivot support 5 to straighten the air passing through the airflow passage 4 is provided upstream of the louver 6 in the airflow passage 4, so that the airflow direction can be changed from the upstream side of the airflow passage 4 by the fin-shaped portion 20, even if the swing angle of the louver 6 is limited, the amount of adjustment of the airflow direction can be secured, and the amount of adjustment of the airflow direction is unlikely to be limited by the swing angle of the louver 6. In addition, since the airflow direction performance is unlikely to be impaired even if the swing angle of the louver 6 is not increased, it is possible to set the maximum swing angle of the louver 6 small, and the airflow direction adjustment device 1 is less subject to design restrictions and layout restrictions.

[0044] By providing the fin-like portion 20 with the integral fin-like portion 22 formed integrally with the pivot support 5, the fin-like portion 20 that rotates in conjunction with the rotation of the pivot support 5 can be realized with a simple configuration.

[0045] By forming the fin-like portion 20 along at least one direction intersecting the direction in which the wind passes through the air passage 4, the air direction can be changed efficiently by the fin-like portion 20, and the air direction performance can be further improved.

[0046] In particular, by forming the fin-shaped portion 20 in a direction along the rotation axis X of the pivot support 5, the rotation direction of the pivot support 5 accompanying the rotation of the louvers 6 can be made to approximately coincide with the rotation direction of the fin-shaped portion 20, thereby further improving the wind direction performance.

[0047] By setting separate fin-like portions 25 connected to the fin-like portion 20 via the pivot support 5 and link 27, it becomes possible, for example, to link a large number of separate fin-like portions 25 to the rotation of the pivot support 5 that accompanies the rotation of the louvers 6, thereby further improving the wind direction performance.

[0048] In the above embodiment, the fin-like portion 20, particularly the integral fin-like portion 22, may be formed, for example, in a cross shape, so long as it is formed along at least one direction that intersects with the air passage direction in the air duct 4.

[0049] Furthermore, the fin portion 20 may be provided with at least one of the integral fin portion 22 and the separate fin portion 25 .

[0050] Furthermore, shut valve 47 is not an essential component, and a separate component for opening and closing air passage 4 may be applied.

[0051] The airflow direction adjustment device 1 can be used not only for vehicles but also for adjusting the airflow direction of any air conditioner or the like. [Industrial Applicability]

[0052] The present invention can be suitably used, for example, as a wind direction adjustment device for an air conditioner in an automobile. [Explanation of symbols]

[0053] 1 Wind direction adjustment device 3 Case body 4 Wind path 5 Axis support 6 Louver 20 Fin-shaped part 22 Integral fin portion 25 Separate fin section 27 Links X,Y rotation axis

Claims

1. A cylindrical case body having an air passage formed therein; a pivot support body that is rotatably disposed in the air passage and has a pivot axis that intersects with an axial direction of the case body; a louver supported by the shaft support so as to be rotatable about a rotation axis in a direction intersecting the rotation axis of the shaft support; a fin-shaped portion that is located upstream of the louver in the air passage and rotates in accordance with the rotation of the shaft support body to straighten the air passing through the air passage; A wind direction adjustment device comprising:

2. The fin portion has an integral fin portion formed integrally with the shaft support.

2. The airflow direction adjusting device according to claim 1.

3. The fin-shaped portion is formed along at least one direction intersecting the direction of air flow in the air passage.

3. The airflow direction adjusting device according to claim 1 or 2.

4. The fin-shaped portion is formed in a direction along the rotation axis of the shaft support body.

4. The airflow direction adjusting device according to claim 3.

5. The fin-like portion has a separate fin-like portion connected to the pivot support via a link.

5. The airflow direction adjusting device according to claim 1, wherein the airflow direction adjusting device is a wind direction adjusting device.

Images