Wind direction adjustment device

Abstract

To provide a wind direction adjusting device which is hardly affected by product variation and can be configured accurately.SOLUTION: A wind direction adjusting device 10 has a finisher 15 having an outlet 25. The wind direction adjusting device 10 includes receiving portions 27 located at edges of the outlet 25 of the finisher 15. The wind direction adjusting device 10 includes a fin 16 for adjusting a wind direction. The wind direction adjusting device 10 includes a cavity portion 29 formed in one of the receiving portions 27 and the fin 16. The wind direction adjusting device 10 includes a shaft portion 35 that is formed on the other of the receiving portions 27 and the fin 16 and is received in the cavity portion 29. The wind direction adjusting device 10 includes holding portions 38 that are attached to the cavity portion 29 and rotatably hold the shaft portion 35 in the cavity portion 29.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an airflow direction adjustment device including fins arranged on a frame having an air outlet. [Background technology]

[0002] Conventionally, air conditioners used in vehicles such as automobiles include air direction adjustment devices that adjust the direction of air blown out. Air direction adjustment devices are also called air conditioner air blowing devices, air outlets, ventilators, registers, etc., and are installed in various parts of the vehicle, such as the instrument panel or center console, and contribute to improving comfort performance through heating and cooling.

[0003] Among such airflow direction adjustment devices, there is known one in which the surface of the finisher having the air outlet and the end of the airflow direction adjustment fin on the vehicle compartment side appear continuous. In this configuration, an axis portion formed on one side of the fin is inserted into an axis hole formed in one side wall of the case body, an axis portion formed in a protrusion on the side wall of the case body is fitted into an axis hole formed on the other side of the fin, and the protrusion is fitted into the space inside a protrusion formed on the edge of the air outlet of the finisher (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2007-76481 A (pages 3-4, Figs. 1 and 3) Summary of the Invention [Problem to be solved by the invention]

[0005] In the case of the above-mentioned configuration, the structure requires high dimensional precision between paired parts, such as the fit between the shaft of the case body and the shaft hole of the fin, the fit between the convex part of the case body and the protruding part of the finisher, and the dimensional relationship between the shaft of the fin and the shaft hole of the case body. Therefore, especially in the case of intricate designs with small dimensions, even slight product variations can have an adverse effect, making complex adjustments necessary, which may result in increased product costs.

[0006] The present invention has been made in consideration of the above-mentioned points, and has an object to provide an airflow direction adjusting device that is less susceptible to product variations and can be constructed with high precision. [Means for solving the problem]

[0007] The airflow direction adjustment device according to claim 1 comprises a frame having an air outlet, a receiving portion located on the edge of the air outlet of the frame, a fin for adjusting the air direction, a hollow portion formed in one of the receiving portion and the fin, a shaft portion formed in the other of the receiving portion and the fin and received in the hollow portion, and a holding portion attached to the hollow portion and holding the shaft portion rotatably in the hollow portion, the holding portion having a groove portion along the insertion direction into the hollow portion, and a pin inserted into the groove is inserted into the groove. The end opposite to the insertion direction It is fixed by welding the tip.

[0008] The airflow direction adjustment device according to claim 2 is the airflow direction adjustment device according to claim 1, The above The cavity is The above Formed in the receiving portion, The above The shaft part is The above It is formed on the fin.

[0009] The airflow direction adjustment device according to claim 3 is the airflow direction adjustment device according to claim 2, The above The cavity is The above It is formed on the rear side of the receiving portion.

[0010] request request 4 The airflow direction adjusting device described in claim 1 to 3In any one of the airflow direction adjustment devices, The above The receiving part is The above It protrudes inward from the edge of the air outlet and has an end The above It is formed so as to be continuous with the end of the fin.

[0011] The airflow direction adjustment device of claim 5 is an airflow direction adjustment device of any one of claims 1 to 4, wherein the receiving portion is formed so as to gradually expand from the front side to the rear side, and the holding portion is fixed by welding at a position on the rear side of the receiving portion. Effect of the Invention

[0012] According to the airflow direction adjusting device of claim 1, the position of the fin with respect to the frame is determined only by the relationship between the hollow portion, the holding portion, and the shaft portion, so that it is less susceptible to product variations and can be configured with high precision.

[0013] According to the airflow direction adjustment device of claim 2, in addition to the effects of the airflow direction adjustment device of claim 1, there is no need to form a fixing structure for the holding part on the fin, unnecessary irregularities that generate turbulence are not formed on the guide surface of the fin, and the hollow part can be made large without increasing the thickness of the fin, making it easier to attach the holding part without impairing the airflow direction adjustment function of the fin.

[0014] According to the airflow direction adjustment device of claim 3, in addition to the effect of the airflow direction adjustment device of claim 2, when an object collides with the airflow direction adjustment device, the shaft portion of the fin pushes the holding portion rearward, causing the holding portion to detach from the receiving portion, and the fin can be quickly detached from the frame in a direction away from the object, thereby reducing the impact on the object that has been hit.

[0015] request request 4 According to the above-described airflow direction adjusting device, claims 1 to 3 In addition to the effect of any one of the airflow direction adjustment devices described above, a preferable linear design crossing the air outlet can be formed, improving the appearance.

[0016] According to the airflow direction adjusting device of claim 5, in addition to the effect of the airflow direction adjusting device of any one of claims 1 to 4, the fixed portion between the holding part and the receiving part is not conspicuous, and the appearance can be improved. [Brief description of the drawings]

[0017] [Figure 1]FIG. 1(a) is a perspective view showing a part of an airflow direction control device according to a first embodiment of the present invention, and FIG. 1(b) is a sectional view showing a part of the same airflow direction control device. [Diagram 2] FIG. 4 is a rear view showing the positional relationship between the receiving portion, the hollow portion, and the shaft portion of the airflow direction adjustment device. [Diagram 3] 6 is a cross-sectional view showing a schematic view of the attachment of a holding portion to a receiving portion of the airflow direction adjustment device. FIG. [Figure 4] FIG. 4 is a rear view showing the state in which the holding portion is attached to the receiving portion of the airflow direction adjustment device. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 5 is a cross-sectional view showing a part of an airflow direction control device according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] A first embodiment of the present invention will now be described with reference to the drawings.

[0019] In FIG. 6, 10 is a wind direction adjustment device. The wind direction adjustment device 10 is also called an air outlet, a ventilator, a register, etc., and adjusts the blowing direction of wind from an air conditioner or the like. In the following, in order to clarify the explanation, the wind direction adjustment device 10 defines the left-right direction or width direction as seen from the front side as the leeward side, the front side, or the near side, and the upwind side as the opposite side, that is, the windward side as the wind receiving side as the rear side, the rear side, or the far side, and defines the up-down direction. In this embodiment, the wind direction adjustment device 10 is applied to an air conditioner for a vehicle such as an automobile. The wind direction adjustment device 10 may be disposed in any position, but in the drawings, it is disposed so that the arrow FR side is the front side, the arrow RR side is the rear side, the arrow L side is the left side, the arrow R side is the right side, the arrow U side is the upper side, and the arrow D side is the lower side. These directions are illustrated merely as examples, and are to be changed as appropriate depending on the installation position and installation direction of the wind direction adjustment device 10.

[0020] The airflow direction adjustment device 10 has a case 14 which is a duct portion as a structural member, a finisher 15 which is a frame body attached to the case 14, and fins 16 which are attached to the finisher 15 for adjusting the airflow direction.

[0021] 5, the case 14 has a side wall 20, and an air passage 21 is enclosed inside by this side wall 20. Furthermore, one end of the case 14, which is the rear end, is an inlet 22 that receives air into the air passage 21, and the other end, which is the front end, of the case 14 is an outlet 23 that blows air out from the air passage 21. In other words, the air passage 21 is formed between the inlet 22 and the outlet 23, communicating them. A finisher 15 is attached to the outlet 23.

[0022] The side wall 20 is formed in a cylindrical shape in the front-rear direction. In the illustrated example, the side wall 20 is formed in a square cylindrical shape. The direction parallel to the central axis of the side wall 20 is the ventilation direction of the ventilation path 21. In this embodiment, the ventilation direction of the ventilation path 21 is the front-rear direction, and ventilation is from the rear to the front. That is, in the ventilation path 21, the rear side is the upstream side in the ventilation direction, and the front side is the downstream side in the ventilation direction.

[0023] The side wall 20 has a predetermined length in the ventilation direction of the ventilation passage 21. In this embodiment, the side wall 20 is flat in the vertical direction and is elongated in the horizontal direction, that is, is formed horizontally. Therefore, the airflow direction adjustment device 10 is formed in a horizontal thin shape. The side wall 20 integrally has a pair of side wall portions 20a that face each other across the center of the ventilation passage 21, i.e., the central axis of the side wall 20 or the case 14, and a pair of end wall portions 20b that connect the pair of side wall portions 20a. The pair of side wall portions 20a face each other in the horizontal direction, and the pair of end wall portions 20b face each other in the vertical direction. The entrance 22 is surrounded by the rear ends of the pair of side wall portions 20a, 20a and the pair of end wall portions 20b, 20b, and the exit 23 is surrounded by the front ends of the pair of side wall portions 20a, 20a and the pair of end wall portions 20b, 20b.

[0024] The finisher 15 is an interior member also called a panel. The finisher 15 has a function of a design member that is a design part of the airflow direction adjustment device 10. In this embodiment, the finisher 15 is formed in a rectangular frame shape. The finisher 15 integrally has a pair of finisher side walls 15a, which are a pair of frame side walls facing each other across a central axis, and a pair of finisher end walls 15b, which are a pair of frame end walls connecting the pair of finisher side walls 15a. The pair of finisher side walls 15a face each other in the left-right direction, and the pair of finisher end walls 15b face each other in the up-down direction. The finisher side walls 15a, 15a and the finisher end walls 15b, 15b surround an air outlet 25, which is an opening that communicates with the outlet 23. That is, the finisher 15 has an air outlet 25 formed therein. In this embodiment, the air outlet 25 is formed in a rectangular shape. In the illustrated example, the air outlet 25 is formed in a longitudinal shape in the left-right direction, that is, horizontally long. In the illustrated example, the opening direction of the air outlet 25 is the front-rear direction.

[0025] As shown in FIG. 1(a), FIG. 1(b), and FIG. 5, the finisher 15 has a receiving portion 27 formed at the edge of the air outlet 25. In this embodiment, the receiving portion 27 is formed on each of the finisher sidewalls 15a. In the illustrated example, the receiving portion 27 protrudes from the finisher sidewalls 15a toward the inside of the air outlet 25. The receiving portion 27 is formed linearly in the left-right direction, and its tip portion faces the side portion of the fin 16. The receiving portion 27 is located at approximately the center of the finisher sidewalls 15a in the up-down direction. The front end portion 27a, which is the end portion on the design side of the receiving portion 27, protrudes forward from the front end portion of the finisher sidewalls 15a. In this embodiment, the front end portion 27a of the receiving portion 27 is formed in the shape of a cylindrical surface whose axial direction is along the left-right direction. Furthermore, in the illustrated example, the receiving portion 27 is formed to be gradually enlarged in the up-down direction from the front side to the rear side. That is, the receiving portion 27 is formed so as to be thinnest at the front side, which is the design side, and gradually thicken toward the rear side.

[0026] In this embodiment, a hollow portion 29 is formed in the receiving portion 27. The hollow portion 29 is formed in the rear portion, i.e., the rear side, of the receiving portion 27. The hollow portion 29 is closed at the top, bottom, front end, and the finisher side wall portion 15a side, and is open at the rear side and the side opposite to the finisher side wall portion 15a side. In the illustrated example, the hollow portion 29 is formed by hollowing out the rear side of the receiving portion 27. Therefore, the hollow portion 29 is formed by gradually expanding in the vertical direction from the front end to the rear end.

[0027] The fin 16 shown in FIG. 5 is also called a louver. The fin 16 is disposed facing the air outlet 25 of the finisher 15. That is, the fin 16 is located downstream of the air passage 21. The fin 16 is formed in a plate shape. At least one of the main surfaces of the fin 16 serves as a guide surface for guiding air. In this embodiment, the front end 16a, which is the end of the design side of the fin 16, is formed in a cylindrical surface shape with the axial direction along the left-right direction. The fin 16 may be single or multiple. In this embodiment, a thin and slim airflow direction adjustment device 10 is configured with one fin 16.

[0028] In the present embodiment, the fin 16 is formed with a shaft portion 35 serving as a rotation shaft. The shaft portion 35 is formed in a cylindrical shape. In the illustrated example, the shaft portion 35 is formed on both sides of the fin 16. The left and right shaft portions 35 are located on the same axis. The fin 16 is arranged on the finisher 15 so that the angle of the guide surface with respect to the air flow direction can be changed by the shaft portion 35. In the illustrated example, the fin 16 is supported on the finisher 15 so that the guide surface can rotate around the shaft portion 35 from a direction parallel or approximately parallel to the air flow direction to a direction intersecting the air flow direction at an acute angle. The shaft portion 35 is located near the front end of the fin 16 and is arranged coaxially or approximately coaxially with the front end of the fin 16.

[0029] The shaft portion 35 is housed in the hollow portion 29. In this embodiment, the shaft portion 35 is housed in a bearing portion 29a formed in the hollow portion 29, as shown in Fig. 1(b). The bearing portion 29a is disposed at a position behind the front end portion 27a of the receiving portion 27. The bearing portion 29a is formed in a cylindrical surface shape that can be in sliding contact with the shaft portion 35.

[0030] The shaft 35 is rotatably held in the cavity 29 by the holding portion 38, which is a cover part. The holding portion 38 is a member separate from the finisher 15 and the fins 16. The holding portion 38 is attached in the cavity 29. In this embodiment, the holding portion 38 is formed in a wedge shape with a thin front end 38a side, which is the end on the insertion side, and a thick rear end 38b side, which is the end on the opposite side, and is press-fitted into the cavity 29 from the rear side of the receiving portion 27. That is, the shaft 35 is sandwiched from the front and rear by the holding portion 38 and the receiving portion 27. That is, the holding portion 38 regulates the position of the shaft 35 in the front-rear direction in the cavity 29. The holding portion 38 is formed of, for example, a synthetic resin.

[0031] In this embodiment, the holding portion 38 is fixed to the receiving portion 27 by welding. For example, the receiving portion 27 is formed with pins 40, which are welded portions for welding and fixing the holding portion 38. The pins 40 are made of synthetic resin. In the example shown, the pins 40 are formed linearly in the receiving portion 27 in the hollow portion 29 along the front-rear direction. The rear end portion of the pins 40, which is the tip portion, protrudes rearward from the receiving portion 27. The number of pins 40 is set according to the fixing strength of the holding portion 38 to the receiving portion 27. In this embodiment, the pins 40 are set in the receiving portion 27, two on each side, above and below the hollow portion 29.

[0032] Further, the retaining portion 38 is formed with grooves 42 into which the pins 40 are inserted. In this embodiment, the grooves 42 are formed linearly along the front-rear direction. The grooves 42 and the pins 40 position and guide the retaining portion 38 when it is fitted into the cavity 29. In other words, the grooves 42 and the pins 40 have the function of positioning and guiding the fitting of the retaining portion 38 into the cavity 29. The grooves 42 are set according to the number of pins 40. In this embodiment, two grooves 42 are set on each of the top and bottom and left and right sides of the retaining portion 38.

[0033] When assembling the airflow direction adjustment device 10, the shaft portion 35 is housed in the bearing portion 29a of the cavity portion 29 as shown in Fig. 2, and then the holding portion 38 is fitted into the cavity portion 29 as shown in Figs. 3 and 4. In this embodiment, the holding portion 38 is inserted into the cavity portion 29 from the rear. At this time, the holding portion 38 is positioned relative to the cavity portion 29 by aligning the groove portion 42 with the pin 40, and in this state, the holding portion 38 is inserted into the cavity portion 29 along the pin 40 by being pushed forward into the cavity portion 29. Since the cavity portion 29 is enlarged toward the rear, the holding portion 38 can be easily inserted.

[0034] Next, as shown in FIG. 1(b), at the position where the shaft portion 35 is sandwiched between the front end portion 38a of the holding portion 38 and the front end portion 27a of the receiving portion 27, the tip portion of the pin 40 protruding rearward from the rear end portion 38b of the holding portion 38 is melted, crushed, and solidified to form a welded portion 44, thereby welding and fixing the receiving portion 27 to the holding portion 38.

[0035] In this state, the shaft portion 35 is located near the vertical center of the air outlet 25, the shaft portion 35 is rotatably held within the bearing portion 29a of the hollow portion 29, and the front end portion 16a of the fin 16 and the front end portion 27a of the receiving portion 27 are positioned in a straight line in the left-right direction, as shown in Figure 6.

[0036] Thereafter, the finisher 15 is attached to the case 14 to complete the airflow direction adjustment device 10.

[0037] In the airflow direction adjustment device 10, by rotating the fin 16 up and down, the guide surface is inclined with respect to the ventilation direction, and the direction of the air blown out from the air outlet 25 is changed. Since the shaft portion 35 of the fin 16 is positioned coaxially or approximately coaxially with the front end portion 16a, the position of the front end portion 16a does not basically change even when the fin 16 is rotated, and the design is kept in a straight line with the front end portion 27a of the receiving portion 27. The fin 16 may be rotated directly by hand by a passenger, by a rotation mechanism consisting of a dial and gears, or by a rotation mechanism via a motor or the like.

[0038] Thus, according to the first embodiment, a hollow portion 29 is formed on one side of the receiving portion 27 and the fin 16 located at the edge of the air outlet 25 of the finisher 15, and an axis portion 35 is formed on the other side of the receiving portion 27 and the fin 16, and the axis portion 35 is accommodated in the hollow portion 29. The holding portion 38 is fitted into the hollow portion 29 and fixed to one side of the receiving portion 27 and the fin 16, thereby rotatably holding the axis portion 35 in the hollow portion 29. This is a simple configuration, and since the position of the fin 16 relative to the finisher 15 is determined only by the relationship between the hollow portion 29, the holding portion 38 and the axis portion 35, it is less susceptible to the effects of product variations, i.e., dimensional variations, etc., and can be constructed with high precision, and complicated adjustments are not required, thereby reducing manufacturing costs.

[0039] Furthermore, by increasing or decreasing the amount by which the holding portion 38 is inserted into the hollow portion 29, the positional relationship between the holding portion 38 and the shaft portion 35 can be changed, making it possible to easily adjust the operating feeling when the fin 16 is rotated, that is, whether the rotation operation is light or heavy.

[0040] In this embodiment, by forming hollow portion 29 in receiving portion 27 and forming shaft portion 35 in fin 16, there is no need to form a fixing structure for holding portion 38 in fin 16, and unnecessary irregularities that cause turbulence are not formed on the guide surface of fin 16. In addition, hollow portion 29 can be made large without increasing the thickness of fin 16, making it easier to attach holding portion 38 without compromising the wind direction adjustment function of fin 16.

[0041] Furthermore, by forming the hollow portion 29 on the back side of the receiving portion 27, when an object collides with the airflow direction adjustment device 10, the shaft portion 35 of the fin 16 pushes the holding portion 38 backward, peeling off the welded portion 44 and separating the holding portion 38 from the receiving portion 27, and the fin 16 can be quickly separated from the finisher 15 in a direction away from the object, thereby reducing the impact on the collided object. Furthermore, the fixed portion between the holding portion 38 and the receiving portion 27 is not noticeable, improving the appearance.

[0042] Fixing the holding portion 38 by welding allows the holding portion 38 to be reliably fixed. Moreover, since the holding portion 38 is welded by melting and solidifying the pins 40, the detachment strength of the fins 16 can be easily and freely set by setting the number of pins 40 according to the desired level of impact when the fins 16 are detached from the finisher 15, and the impact absorbing power of the airflow direction adjustment device 10 can be easily adjusted.

[0043] By forming the receiving portion 27 to protrude inward from the edge of the air outlet 25 and the front end portion 27a to be connected to the front end portion 16a of the fin 16, a desirable linear design crossing the air outlet 25 can be formed, improving the appearance.

[0044] In addition, by enlarging the back side of the receiving portion 27, which is the insertion side of the holding portion 38, the hollow portion 29 makes it easier to insert the holding portion 38 into the hollow portion 29, and by gradually narrowing it toward the front, there is no need to increase the thickness on the front end portion 27a side of the receiving portion 27, so that the front end portion 27a of the receiving portion 27 and the front end portion 16a of the fin 16 can form a slim line that looks good.

[0045] Next, a second embodiment will be described with reference to Fig. 7. Note that the same components and functions as those in the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

[0046] In this embodiment, the holding portion 38 is locked by a claw engagement in a direction intersecting the insertion direction into the cavity 29 .

[0047] The receiving portion 27 is formed with one locking portion 46, and the holding portion 38 is formed with another locking portion 47.

[0048] In the illustrated example, one locking portion 46 is an opening that opens in a direction intersecting the insertion direction of the holding portion 38 into the hollow portion 29, and the other locking portion 47 is a claw portion. This relationship may be reversed, and the one locking portion 46 may be a claw portion and the other locking portion 47 may be an opening.

[0049] In addition, the receiving portion 27 is formed with a positioning portion 48 within the hollow portion 29 for positioning the holding portion 38 in the front-to-rear direction, i.e., the direction of insertion into the hollow portion 29, and the holding portion 38 is formed with another positioning portion 49 which, together with the positioning portion 48, sets the amount of insertion of the holding portion 38 into the hollow portion 29.

[0050] In the illustrated example, one positioning portion 48 is formed in a stepped shape in the up-down direction, which is a direction intersecting the front-rear direction, which is the insertion direction of the holding portion 38, inside the hollow portion 29. The other positioning portions 49 are formed in stepped shapes protruding from the upper and lower portions of the holding portion 38, respectively.

[0051] When the holding portion 38 is inserted into the hollow portion 29, one locking portion 46 engages with the other locking portion 47 to fix the holding portion 38 to the hollow portion 29, and one positioning portion 48 abuts against the other positioning portion 49 to position the holding portion 38 relative to the hollow portion 29.

[0052] Thus, according to this embodiment, simply by inserting the holding portion 38 into the hollow portion 29, the other locking portion 47 engages with the first locking portion 46 to fix the holding portion 38, making it easy to fix the holding portion 38. Furthermore, by setting the amount of engagement between the first locking portion 46 and the other locking portion 47 according to the desired level of impact when removing the fin 16 from the finisher 15, the detachment strength of the fin 16 can be easily and freely set, and the impact absorption capacity of the air direction adjustment device 10 can be easily adjusted.

[0053] In each of the above-described embodiments, the cavity 29 may be formed in the fin 16, the shaft 35 may be formed in the receiving portion 27, and the holding portion 38 may be fixed to the fin 16. In this case, it is preferable to form the cavity 29 so as to open to the front end portion 16a of the fin 16, so that when an object collides with the airflow direction adjustment device 10, a force is applied from the shaft 35 to the holding portion 38 in a relatively forward direction, causing the holding portion 38 to separate from the fin 16, and the fin 16 to quickly separate from the finisher 15 in a direction away from the object.

[0054] In addition, although both sides of the fin 16 have the same structure, this is not limited to the above, and the holding structure of the hollow portion 29, shaft portion 35 and holding portion 38 may be applied to only one side of the fin 16, or a configuration may be used in which the hollow portion 29 is formed in the receiving portion 27 on one side of the fin 16 and the shaft portion 35 is formed in the fin 16, and the hollow portion 29 is formed in the fin 16 on the other side of the fin 16 and the shaft portion 35 is formed in the receiving portion 27. [Industrial Applicability]

[0055] 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]

[0056] 10 Wind direction adjustment device 15 Finisher as a frame 16 Finn 25 Air outlet 27 Receiving part 29 Cavity 35 Shaft 38 Holding part 42 Groove

Claims

1. A frame having an air outlet; A receiving portion located on an edge of the air outlet of the frame body; Fins for adjusting wind direction, a cavity formed in one of the receiving portion and the fin; a shaft portion formed on the other of the receiving portion and the fin and received in the hollow portion; a holding portion attached to the hollow portion and rotatably holding the shaft portion in the hollow portion, The holding portion has a groove along the insertion direction into the hollow portion, and is fixed by welding a tip portion, which is an end portion of the pin inserted into the groove on the opposite side to the insertion direction. A wind direction adjustment device characterized by the above.

2. The cavity is formed in the receiving portion, The shaft portion is formed on the fin.

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

3. The cavity is formed on the rear side of the receiving portion.

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

4. The receiving portion protrudes inward from the edge of the air outlet and has an end portion formed to be continuous with an end portion of the fin.

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

5. The receiving portion is formed so as to gradually expand from the front side to the rear side, The holding portion is fixed to the rear side of the receiving portion by welding.

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

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