JP2019202740A - Wind direction adjusting device - Google Patents

Abstract

To provide a wind direction adjusting device in which a range of an adjustable wind direction angle can be expanded.SOLUTION: A wind direction adjusting device 10 comprises a case body 15 having a ventilation path 22, and a plurality of lateral louvers 16. The lateral louver 16 is located on the case body 15 along a longitudinal direction crossing flow of air which passes the ventilation path 22, both ends thereof in the longitudinal direction are rotatably pivoted, and the lateral louver adjusts a wind direction of air passing the ventilation path 22. The lateral louver 16 includes a plurality of S-shaped lateral louvers 34 of which a cross section shape is S-shape in a direction along flow of air passing the ventilation path 22 has an intermediate part 36, and both end ramps 37, 38 which are inclined from both ends of the intermediate part 36 to mutually different sides.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wind direction adjusting device that adjusts a wind direction by rotating a plurality of fins.

  2. Description of the Related Art Conventionally, in an air conditioner used in a vehicle such as an automobile, a wind direction adjusting device provided at a blowout port that blows out conditioned air is also called an air conditioner blowout device, an air outlet, a ventilator, a register, or the like, such as an instrument panel or a center console. It is installed in each part of the vehicle such as the part and contributes to the improvement of comfort performance by air conditioning.

  As such a wind direction adjusting device, a plurality of fins are rotatably arranged in a cylindrical case body having a ventilation path, and the plurality of fins are rotated in one direction or the other direction to be inclined, A configuration is known in which the wind direction is adjusted in the inclination direction of a plurality of fins.

  The fins used in such a wind direction adjusting device are often straight fins having a straight cross-sectional shape in the direction along the air flow passing through the ventilation path, but the clearance from the case body is small. Therefore, the rotation angle cannot be increased, and the range of the adjustable wind direction angle is relatively small. Further, by using the downstream inclined fin in which the downstream side of the fin along the flow of air passing through the ventilation path is inclined toward one side in the rotation direction, the downstream side of the downstream inclined fin is used. It is possible to expand the wind direction angle toward the tilt direction (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 7-205648 (page 2-3, FIG. 2)

  However, in the downstream inclined fin, it is possible to expand the wind direction angle in the direction in which the downstream side of the downstream inclined fin is inclined, but it is opposite to the direction in which the downstream side of the downstream inclined fin is inclined. The wind direction angle in the direction cannot be expanded, and the range of the adjustable wind direction angle is not sufficient.

  This invention is made | formed in view of such a point, and it aims at providing the wind direction adjustment apparatus which can expand the range of the wind direction angle which can be adjusted.

  The wind direction adjusting device according to claim 1 is disposed along a first predetermined direction intersecting with a case body having a ventilation path, and a flow of air passing through the ventilation path in the case body. A plurality of first fins that are pivotally supported at both ends in a predetermined direction and adjust the air direction of the air passing through the ventilation path, and the first fin is air that passes through the ventilation path A plurality of S-shaped fins having a S-shaped cross section having an intermediate portion and inclined portions at both ends inclined to different sides from both ends of the intermediate portion.

  The wind direction adjusting device according to claim 2 is the wind direction adjusting device according to claim 1, wherein the flow of air passing through the ventilation path and the second predetermined direction intersecting the first predetermined direction in the case body. A plurality of second fins that are pivotally supported at both ends in the second predetermined direction and adjust the air direction of the air passing through the ventilation path, and one of the first fins. And an operation unit that is movably attached along the first predetermined direction and is connected to the second fin, and operates a rotation angle of the second fin by movement in the first predetermined direction. The first fin to which the operation unit is attached is a linear fin having a linear cross-sectional shape along the flow of air passing through the ventilation path.

  The wind direction adjusting device according to claim 3 is the wind direction adjusting device according to claim 2, further comprising a first link that interlocks and rotates the S-shaped fin and the linear fin, In a state where the linear fin is rotated and inclined in one direction or the other direction with respect to the ventilation path, the inclination angle of the most inclined portion of the S-shaped fin is larger than the inclination angle of the linear fin. It ’s a big one.

  According to the wind direction adjusting apparatus of the first aspect, by adjusting the wind direction using a plurality of S-shaped fins as the first fin, the range of the adjustable wind direction angle can be expanded.

  According to the wind direction adjusting device of the second aspect, in addition to the effect of the wind direction adjusting device of the first aspect, the rotation angle of the second fin is obtained by using a linear fin as one of the first fins. The operation part for operating can be attached to be movable along the linear fin.

  According to the wind direction adjusting device according to claim 3, in addition to the effect of the wind direction adjusting device according to claim 2, the S-shaped fin and the linear fin rotate in one direction or the other direction with respect to the ventilation path. In the inclined state, the range of the adjustable wind direction angle can be expanded because the inclination angle of the most inclined portion of the S-shaped fin is larger than the inclination angle of the linear fin.

It is sectional drawing which adjusted the wind direction of the wind direction adjusting device which shows one embodiment of this invention to the substantially horizontal direction which is a wind-axis direction. It is sectional drawing which adjusted the wind direction of the same wind direction adjustment apparatus same as the above. It is sectional drawing which adjusted the wind direction of the wind direction adjustment apparatus same as the above downward. It is a perspective view of a wind direction adjustment apparatus same as the above.

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

  1 to 4, reference numeral 10 denotes a wind direction adjusting device. The wind direction adjusting device 10 is also called a louver device or a ventilator, and is attached to, for example, an instrument panel (not shown) that is a member to be attached to an automobile. The vehicle air conditioner is configured to blow air into the passenger compartment and perform air conditioning. Hereinafter, the front-rear direction, the left-right direction, and the up-down direction will be described with reference to the front-rear direction, the left-right direction, and the up-down direction of the automobile with the wind direction adjusting device 10 attached to an instrument panel or the like.

  The wind direction adjusting device 10 includes a case body 15, a horizontal louver 16 as a first fin that is a first wind direction adjusting blade pivotally supported on the case body 15, and more than the horizontal louver 16. Operate the vertical louver 17 as the second fin, which is the second airflow direction adjusting blade disposed in the case body 15 at the front position, and the rotation angle, that is, the swing angle of each of the horizontal louver 16 and the vertical louver 17. And an operation knob 18 as an operation section.

  The case body 15 includes, for example, a case body main body 21 formed in a rectangular tube shape with a synthetic resin or the like, and a rectangular tube finisher (not shown) as a design member attached to the rear end portion of the case body main body 21. ). Further, the inside of the case body 15 is a ventilation path 22, a front side is a connection port 23 connected to an air duct of the air conditioner, and a rear side is a blower outlet 24 partitioned by a finisher. On the left and right sides of the case body 15 (case body main body 21), for example, round hole-shaped first bearing portions 25 and 25 for supporting the horizontal louver 16 are opened. For example, round hole-shaped second bearing portions 26 and 26 for supporting the vertical louver 17 are opened in the upper and lower portions of the case body 15.

  The lateral louver 16 is also referred to as a front louver or the like, and in a first predetermined direction intersecting the flow of air passing through the ventilation path 22 on the rear side, which is the leeward side of the vertical louver 17, in the ventilation path 22. They are arranged along a certain left-right direction (horizontal direction) D1 (see FIG. 4). The lateral louver 16 is pivotally supported by the first bearing portions 25, 25 of the case body 15 so as to be rotatable about the left-right direction D1 as a rotation axis. The lateral louver 16 includes a lateral louver body 31 that is a first fin body serving as a first elongated blade-like blade portion that controls the flow of air passing through the ventilation path 22, and a longitudinal direction of the lateral louver body 31. That is, a case body is provided with a cylindrical first rotation shaft portion 32 that protrudes from both left and right end portions, is fitted to the first bearing portions 25 and 25 and is pivotally supported by the case body 15. Rotating in the vertical direction D2 as a second predetermined direction intersecting (orthogonal) the air flow passing through the ventilation path 22 and the left-right direction D1 with respect to 15 (case body 21). Yes.

  A plurality of the horizontal louvers 16 are set in the present embodiment, and are arranged apart from each other in the vertical direction D2. The plurality of lateral louvers 16 are connected by a first link 33 so as to rotate in conjunction with each other. Each lateral louver 16 is connected to a first link 33 at one end of the lateral louver main body 31 so as to be separated from the first rotational shaft portion 32 and in parallel with the first rotational shaft portion 32. A first link shaft portion (not shown) is projected. The first link shaft portion of each lateral louver 16 protrudes outward from a groove portion 21 a provided on one side wall of the case body 21 and is connected to a first link 33 disposed outside the case body 15. Yes. In the present embodiment, for example, all the horizontal louvers 16 are linked to each other by the first link 33 from the neutral position along the front-rear direction D3 that is the wind axis direction of the ventilation path 22, and the vertical direction D2. The wind direction can be adjusted. Further, in the present embodiment, these lateral louvers 16 are arranged so as to be gradually shifted to the rear side, for example, from the top to the bottom, in other words, to be substantially parallel to the opening surface direction of the outlet 24. ing.

  As shown in FIG. 4, any one of these lateral louvers 16, for example, the lateral louver 16 located at the center in the vertical direction D 2, has an operation knob 18 in the longitudinal direction of the lateral louver 16 (lateral louver body 31). It is attached so as to be movable (slidable) along a certain left-right direction D1.

  Further, the lateral louver 16 passes through the ventilation path 22 and the S-shaped lateral louver 34 as a plurality of S-shaped fins whose cross-sectional shape in the direction along the air flow passing through the ventilation path 22 is S-shaped. A linear transverse louver 35 is provided as a linear fin whose cross-sectional shape in the direction along the air flow is a linear shape. In the present embodiment, there are three lateral louvers 16, the upper and lower two are S-shaped lateral louvers 34, and the central one is a linear lateral louver 35.

  The S-shaped lateral louver 34 has a cross-sectional shape in the direction along the air flow passing through the ventilation path 22 and both ends inclined to different sides from the windward and leeward ends of the intermediate part 36. Are formed in an S-shaped cross section having inclined portions 37, 38. In the present embodiment, the windward-side inclined portion (upstream-side inclined portion) 37 is inclined downward from the intermediate portion 36, and the leeward-side inclined portion (downstream-side inclined portion) 38 is upward from the intermediate portion 36. It is inclined towards. The inclination angle α1 of the inclined portions 37 and 38 from the intermediate portion 36 is about 33 ° in the present embodiment. Further, as shown in FIG. 1, in the state where the horizontal louver 16 (S-shaped horizontal louver 34) is in a neutral position along the front-rear direction D 3 that is the wind axis direction of the ventilation path 22, the front and rear that are the wind axis direction of the ventilation path 22 The inclination angle α2 of the inclined portions 37, 38 of the S-shaped lateral louver 34 with respect to the direction D3 is preferably 20 ° or less (more preferably 15 ° or less), and is about 14 ° in the present embodiment.

  The vertical louver 17 is also called a back louver or the like, and is disposed in the case body 15 along the vertical direction D2, and the second bearing portions 26 and 26 of the case body 15 have the vertical direction D2 as a rotational axis. Is pivotally supported. The vertical louver 17 includes a vertical louver body 41 that is a second fin body serving as a second blade portion having a rectangular plate shape that controls the flow of air passing through the ventilation path 22, and a longitudinal direction of the vertical louver body 41. That is, a case body is provided with a cylindrical second rotation shaft portion 42 that protrudes from both upper and lower end portions, is fitted to the second bearing portions 26, 26 and is pivotally supported by the case body 15. It can be rotated in the left-right direction (horizontal direction) D1 with respect to 15 (case body 21).

  A plurality of the vertical louvers 17 are set in the present embodiment, and are arranged apart from each other in the left-right direction D1. The plurality of vertical louvers 17 are connected by a second link 43 so as to rotate in conjunction with each other. Each vertical louver 17 is connected to the second link 43 at the lower end of the vertical louver body 41, spaced apart from the second rotation shaft portion 42 and parallel to the second rotation shaft portion 42. A second link shaft portion 44 is projected. Furthermore, the front side of the operation knob 18 is connected to one of these vertical louvers 17, for example, the vertical louver 17 located at the center in the left-right direction D1. In the present embodiment, for example, all the vertical louvers 17 are interlocked by the second links 43 from the neutral position along the front-rear direction D3 that is the wind axis direction of the ventilation path 22, and the left and right directions D1. The wind direction can be adjusted.

  When viewed from the occupant of the automobile, the lateral louver 16 is located on the front side, that is, on the passenger compartment side and exposed to the outlet 24, and the vertical louver 17 is located on the inner side, that is, on the vehicle body side. It is located behind the horizontal louver 16 as viewed from the side.

  The operation knob 18 is a knob for a user such as a vehicle occupant to pick and operate when changing the wind direction. The operation knob 18 is slidable (slidable) in the left-right direction D1 along the lateral louver 16 (linear lateral louver 35). When the operation knob 18 is operated in the up / down direction D2, the horizontal louver 16 is interlocked and rotated up and down, and when the operation knob 18 is operated in the left / right direction D1, the vertical louver 17 is interlocked and moved left and right. Rotate.

  And the conditioned air supplied from the air conditioner is introduced from the connection port 23 to the ventilation path 22 inside the case body 15 through the ventilation path 22, and the wind direction adjusting device 10 passes through the ventilation path 22 from the air outlet 24 to the occupant side, That is, it is blown out into the passenger compartment.

  At this time, when the operation knob 18 is operated in the left-right direction D1 along the horizontal louver 16, the vertical louver 17 rotates in the left-right direction D1, and the airflow direction of the conditioned air blown from the outlet 24 is adjusted to the left and right. On the other hand, when the operation knob 18 is operated in the vertical direction D2 together with the horizontal louver 16, the horizontal louver 16 is rotated in the vertical direction D2, and the wind direction of the conditioned air blown from the outlet 24 is adjusted up and down.

  1 shows a state in which the lateral louver 16 (the S-shaped lateral louver 34 and the linear lateral louver 35) is in a neutral position along the front-rear direction D3, which is the wind axis direction of the ventilation path 22. The S-shaped lateral louver 34 has an inclined portion 37, an intermediate portion 36, and an inclined portion 38 arranged in the front-rear direction D3 that is the wind axis direction, so that the air direction of the conditioned air is substantially horizontal, which is the wind axis direction of the ventilation path 22. Adjusted. The straight horizontal louver 35 is adjusted in the substantially horizontal direction, which is the wind axis direction of the ventilation path 22, along the longitudinal direction D 3 that is the wind axis direction of the ventilation path 22. Therefore, the lateral louver 16 blows the conditioned air from the outlet 24 in a substantially horizontal direction that is the wind axis direction of the ventilation path 22.

  In the state where the S-shaped lateral louver 34 is in the neutral position, it is preferable that the S-shaped lateral louver 34 does not impede the flow of the conditioned air blown from the outlet 24 in the substantially horizontal direction that is the wind axis direction of the ventilation path 22. In the state where the S-shaped lateral louver 34 is in the neutral position, the inclination angle α2 of the inclined portions 37, 38 of the S-shaped lateral louver 34 with respect to the longitudinal direction D3 which is the wind axis direction of the ventilation path 22 is preferably 20 ° or less, for example. (More preferably, it is 15 ° or less.) Since this is about 14 ° in the present embodiment, the flow of conditioned air that the S-shaped lateral louver 34 blows out from the air outlet 24 in the substantially horizontal direction, which is the wind axis direction of the air passage 22. There is little obstruction, and the influence on the wind power and air volume blown out by the conditioned air can be reduced.

  FIG. 2 shows an upward state of the wind direction in which the horizontal louver 16 (the S-shaped horizontal louver 34 and the linear horizontal louver 35) is rotated upward. The S-shaped lateral louver 34 is tilted upward so that the upper surfaces of the inclined portion 37, the intermediate portion 36, and the inclined portion 38 face the windward side, and the conditioned air is on the upper surface side of the inclined portion 37, the intermediate portion 36, and the inclined portion 38. By hitting, the air-conditioning wind direction is adjusted upward. At this time, due to the Coanda effect on the upper surface side of the S-shaped lateral louver 34 (the jet flow draws in the surrounding fluid due to the effect of viscosity), the conditioned air easily flows upward, and the upward wind direction angle increases. The straight horizontal louver 35 is tilted upward so that the upper surface side faces the windward side, and the conditioned air hits the upper surface side, whereby the wind direction of the conditioned air is adjusted upward. Accordingly, the conditioned air is blown upward from the outlet 24 by the lateral louver 16.

  In a state where the S-shaped lateral louver 34 and the linear lateral louver 35 rotate and incline upward in one direction with respect to the ventilation path 22, the longitudinal direction D 3 that is the wind axis direction of the ventilation path 22 is defined. The inclination angle β1 of the most inclined portion of the S-shaped lateral louver 34, that is, the leeward inclined portion 38, is larger than the inclination angle β2 of the linear lateral louver 35. Therefore, in the S-shaped lateral louver 34, the upward air direction angle of the conditioned air can be made larger than the air direction angle of the linear lateral louver 35 with respect to the longitudinal direction D3 that is the wind axis direction of the ventilation path 22.

  FIG. 3 shows a downwind state of the wind direction in which the horizontal louver 16 (the S-shaped horizontal louver 34 and the straight horizontal louver 35) is rotated downward. The S-shaped lateral louver 34 is inclined downward so that the lower surfaces of the inclined portion 37, the intermediate portion 36, and the inclined portion 38 face the windward side, and the conditioned air is on the lower surface side of the inclined portion 37, the intermediate portion 36, and the inclined portion 38. By hitting, the direction of the conditioned air is adjusted downward. At this time, the Coanda effect on the lower surface side of the S-shaped lateral louver 34 (the jet stream draws the surrounding fluid due to the viscous effect) makes it easier for the conditioned air to flow downward and the downward wind direction angle increases. The straight horizontal louver 35 is tilted downward so that the lower surface side faces the windward side, and the air-conditioning wind strikes the lower surface side, whereby the airflow direction of the air-conditioning wind is adjusted downward. Accordingly, the conditioned air is blown downward from the outlet 24 by the lateral louver 16.

  In a state in which the S-shaped lateral louver 34 and the linear lateral louver 35 are rotated and inclined downward in the other direction with respect to the ventilation path 22, the longitudinal direction D3 that is the wind axis direction of the ventilation path 22 is defined. The inclination angle β3 of the most inclined portion of the S-shaped lateral louver 34, that is, the intermediate portion 36 is larger than the inclination angle β4 of the linear lateral louver 35. Therefore, the S-shaped lateral louver 34 can make the airflow direction angle of the conditioned air downward with respect to the front-rear direction D3 that is the wind axis direction of the ventilation path 22 as compared with the airflow direction angle by the linear lateral louver 35.

And the wind axis angle of the wind which blows off from the blower outlet 24 about this Embodiment in which the horizontal louver 16 contains the several S-shaped horizontal louver 34, and the comparative example in case the horizontal louver 16 is only the linear horizontal louver 35 is shown. A wind direction controllability measurement test was performed. In the test, the air volume was 2.0 m ³ / min, the rotation angle of the horizontal louver 16 when swinging up was 35 °, and the rotation angle of the horizontal louver 16 when swinging down was 40 °.

  As a result, in the comparative example, the wind axis angle when swinging up was 37 ° and the wind axis angle when swinging down was −37.7 °, whereas in this embodiment, the wind axis angle when swinging up was The shaft angle is 42.1 °, the wind axis angle when swinging down is -40.8 °, the wind axis angle when swinging up is 5.1 °, and the wind axis angle when swinging down is 3.1 ° did.

  As described above, in the present embodiment, by adjusting the wind direction of the conditioned air in the vertical direction D2 using the plurality of S-shaped horizontal louvers 34 in the horizontal louver 16, the range of the wind direction angle adjustable in the vertical direction D2 is set. Can be expanded.

  Further, although the operation knob 18 is attached to one of the lateral louvers 16, if the operation knob 18 is attached to the S-shaped lateral louver 34, the shape of the operation knob 18 becomes complicated and it becomes difficult to adjust the operation feeling. . Therefore, by using the linear lateral louver 35 for the lateral louver 16 to which the operation knob 18 is attached, the shape of the operation knob 18 can be simplified and the operational feeling can be easily adjusted.

  In addition, in the state where the S-shaped lateral louver 34 and the linear lateral louver 35 are rotated and tilted in one direction or the other direction with respect to the ventilation path 22, the slope of the most inclined portion of the S-shaped lateral louver 34 is inclined. When the angle is larger than the inclination angle of the linear lateral louver 35, the range of the wind direction angle that can be adjusted in the vertical direction D2 can be expanded.

  Further, in the state where the S-shaped lateral louver 34 is in the neutral position, the inclination angle α2 of the inclined portions 37, 38 of the S-shaped lateral louver 34 with respect to the longitudinal direction D3 which is the wind axis direction of the ventilation path 22 is, for example, 20 ° or less. Preferably (more preferably 15 ° or less), and in the present embodiment, it is about 14 °, so that the range of the wind direction angle adjustable in the vertical direction D2 can be expanded and the S-shaped lateral louver 34 is in the neutral position. Hinders the flow of the conditioned air blown from the outlet 24 in the substantially horizontal direction, which is the direction of the wind axis of the ventilation path 22, and can reduce the influence of the conditioned air on the wind force and air volume.

  In the above embodiment, the upper and lower surfaces of the S-shaped lateral louver 34 may be reversed. That is, in the S-shaped lateral louver 34, the windward inclined portion 37 may be inclined upward from the intermediate portion 36, and the leeward inclined portion 38 may be inclined downward from the intermediate portion 36. Also in this case, the range of the wind direction angle that can be adjusted in the vertical direction D2 can be expanded.

  In the above embodiment, the number of the horizontal louvers 16 is three, the upper and lower horizontal louvers 16 are S-shaped, and the middle horizontal louver 16 is a straight shape. For example, in the case of four, The upper two and the lower one can be S-shaped, the remaining one can be straight, and in the case of five, the top and bottom can be S-shaped and the middle one can be straight. . That is, as long as at least the upper and lower ends are S-shaped, the middle side may be either S-shaped or linear.

  In the above embodiment, the upper and lower lateral louvers 16 (S-shaped lateral louvers 34) are provided with the same inclination angle α1, but may be different angles. Furthermore, the inclination angle α1 of the inclined portion 37 of the upper and lower horizontal louvers 16 (S-shaped horizontal louver 34) and the inclination angle α1 of the inclined portion 38 may be different from each other.

  Further, an S-shaped fin structure may be applied to the vertical louver 17 to expand the range of the wind direction angle that can be adjusted in the left-right direction D1.

  Further, depending on the place where the wind direction adjusting device 10 is used, the positional relationship between the horizontal louver 16 and the vertical louver 17 in the wind axis direction of the ventilation path 22 may be reversed.

  Further, in the above-described embodiment, the lateral louver 16 can be rotated by an operating body such as a dial that is operably attached to the case body 15 in addition to a structure that is directly rotated by the operation knob 18.

  Further, the wind direction adjusting device 10 may include only one of the horizontal louver 16 and the vertical louver 17, and an S-shaped fin structure may be applied to one of them.

  The present invention can be applied, for example, as a wind direction adjusting device for an air conditioner provided in an instrument panel of an automobile.

10 Wind direction adjustment device
15 Case body
16 Lateral louver as first fin
17 Longitudinal louver as second fin
18 Operation knob as operation section
22 Ventilation path
33 First link
34 S-shaped lateral louver as S-shaped fin
35 Straight horizontal louver as a straight fin
36 Middle part
37, 38 Inclined part
D1 Left-right direction as the first predetermined direction
D2 Up and down direction as second predetermined direction

Claims (3)

A case body having a ventilation path;
The case body is disposed along a first predetermined direction intersecting with the air flow passing through the ventilation path, and both ends of the first predetermined direction are pivotally supported so as to pass through the ventilation path. A plurality of first fins for adjusting the air direction of the air to be
The first fin has an S-shaped cross section in which a cross-sectional shape in a direction along the flow of air passing through the ventilation path has an intermediate portion and inclined portions at both ends inclined to different sides from both ends of the intermediate portion. A plurality of S-shaped fins. The case body is disposed along the second predetermined direction intersecting the first predetermined direction and the flow of air passing through the ventilation path, and both ends of the second predetermined direction are pivotally supported. A plurality of second fins for adjusting the air direction of air passing through the ventilation path;
It is attached to one of the first fins so as to be movable along the first predetermined direction and is connected to the second fin, and the second fin is rotated by moving in the first predetermined direction. An operation unit for operating a moving angle;
2. The wind direction adjustment according to claim 1, wherein the first fin to which the operation unit is attached is a linear fin having a linear cross-sectional shape along a flow of air passing through the ventilation path. apparatus. A first link for rotating the S-shaped fin and the linear fin in conjunction with each other;
In a state where the S-shaped fin and the linear fin are rotated and inclined in one direction or the other direction with respect to the ventilation path, the inclination angle of the most inclined portion of the S-shaped fin is the linear shape. The wind direction adjusting device according to claim 2, wherein the wind direction adjusting device is larger than an inclination angle of the fin.

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