Wind direction adjustment device

Abstract

To provide a wind direction adjustment device which can control wind direction in a desired direction with a simple structure.SOLUTION: A wind direction adjustment device 1 comprises an outer cylinder part 4 which includes openings 7, 8 on both ends part and an inner cylinder part 5 which situates inside the outer cylinder part 4 and is formed with a ventilation path 12 which is in communication with the openings 7, 8 between the outer cylinder part 4 and the inner cylinder part 5. The ventilation path 12 is divided into at least three flow paths 14 by downstream side inclining toward a central part of the opening 8 of downstream side. The wind direction adjustment device 1 is further provided with an adjustment member 15 which adjusts at least either of ventilation amount of the flow path 14.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an airflow direction adjusting device having an adjusting member that adjusts the amount of airflow in a flow path. [Background technology]

[0002] Conventionally, there is an airflow direction adjusting device that adjusts the direction of airflow in air conditioners used in vehicles such as automobiles. For example, a known airflow direction adjusting device has an air passage divided into three flow paths, one above the other, and each of the flow paths is provided with a fin, which is an adjusting member that adjusts the amount of airflow (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-86659 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above configuration, since the flow paths are arranged in a vertical direction, when the air flow rate of the flow path is adjusted by the fins, the wind direction from the outlet is only adjusted in the vertical direction, and an additional wind direction adjustment member is required to adjust the wind direction in the horizontal direction.

[0005] The present invention has been made in consideration of the above points, and has an object to provide a wind direction adjusting device that can control the wind direction to a desired direction with a simple configuration. [Means for solving the problem]

[0006] A wind direction adjustment device according to one aspect of the present invention comprises an outer tube portion having openings at both ends and an inner tube portion located inside the outer tube portion, and an air passage formed between the outer tube portion and the inner tube portion that connects the openings, the air passage being inclined downstream toward the center of the downstream opening and divided into at least three flow paths, and further comprising an adjustment member that adjusts the air flow rate of at least one of the flow paths. [Effects of the Invention]

[0007] According to the present invention, the wind direction can be controlled to a desired direction with a simple configuration. [Brief explanation of the drawings]

[0008] [Figure 1] 1A and 1B are longitudinal cross-sectional views schematically showing an airflow direction control device according to an embodiment of the present invention, in which FIG. 1A shows a state in which a first flow path is open, and FIG. 1B shows a state in which one side of the first flow path is closed. [Figure 2] 4A and 4B are cross-sectional views showing a schematic view of the airflow direction control device, in which (a) is a cross-sectional view showing a state in which the second flow path is open, and (b) is a cross-sectional view showing a state in which one side of the second flow path is closed. [Figure 3] 1A, 1B, and 1C are a plan view, a front view, and a side view, respectively, showing a drive unit of the airflow direction adjusting device. [Figure 4] 1A is a perspective view of the airflow direction adjustment device, and FIG. 1B is a perspective view of an inner cylinder of the airflow direction adjustment device. [Figure 5] 10 is a table showing an example of the correspondence between the rotation angle of the cam of the airflow direction adjustment device and the opening degree and airflow direction of each flow path by each adjustment member, where (a) shows one cam and the first flow path side, and (b) shows another cam and the second flow path side. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] 4(a), reference numeral 1 denotes a wind direction adjustment device. The wind direction adjustment device 1 is also called an air outlet, a ventilator, a register, etc., and adjusts the direction in which wind is blown out from an air conditioner or the like.

[0011] First, the outline of the airflow direction adjustment device 1 will be described.

[0012] The airflow direction adjustment device 1 includes a main body 3. The main body 3 is a case body formed of a material such as synthetic resin. The main body 3 includes an outer cylinder 4 and an inner cylinder 5 located inside the outer cylinder 4.

[0013] The outer tube portion 4 is cylindrical and has openings 7 and 8 at both axial ends. The inner tube portion 5 shown in FIG. 4(b) is cylindrical and has one closed end and an opening 10 at the other end. Preferably, the opening 10 is closed by a lid 11 so as to be able to be opened and closed. As shown in FIG. 4(a), the inner tube portion 5 has an outer shape smaller than that of the outer tube portion 4, e.g., an outer shape similar to that of the outer tube portion 4. The inner tube portion 5 is disposed inside the outer tube portion 4 coaxially or approximately coaxially with the outer tube portion 4. Therefore, the main body 3 has an air passage 12 formed between the inner surface of the outer tube portion 4 and the outer surface of the inner tube portion 5, communicating between the openings 7 and 8. In this embodiment, the opening 7 is an upstream opening, i.e., an inlet, that receives conditioned air into the air passage 12, and the opening 8 is a downstream opening, i.e., an outlet, that blows out conditioned air that has passed through the air passage 12.

[0014] As shown in Figures 1(a), 1(b), 2(a), and 2(b), at least the downstream side of the air passage 12 is inclined toward the center of the opening 8, i.e., toward the central axis of the main body 3 or the outer cylinder 4, and the interior is divided into three or more flow paths 14. Furthermore, an adjustment member 15 for adjusting the amount of airflow is disposed in at least one of the flow paths 14. In this embodiment, an adjustment member 15 is provided for each flow path 14. In the airflow direction adjustment device 1, the adjustment member 15 adjusts the opening degree of the flow path 14, i.e., the amount of airflow, to control the direction of air blowing out of the opening 8.

[0015] For clarity, the leeward side of the airflow direction control device 1, from which air flows, is referred to as the front side, front side, or near side, and the opposite side, i.e., the upwind side from which air flows, is referred to as the rear side, back side, or far side. The left-right or width direction, as viewed from the front, and the up-down direction are defined as follows. In this embodiment, the airflow direction control device 1 is applied to an air conditioning system for a vehicle such as an automobile. The airflow direction control device 1 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 top side, and the arrow D side is the bottom side. These directions are shown merely as examples and may be changed as appropriate depending on the installation location and orientation of the airflow direction control device 1.

[0016] Next, the airflow direction adjustment device 1 will be described in detail.

[0017] The outer tube portion 4 has an enlarged portion 20 whose cross-sectional area gradually increases from the opening 7 toward the front, a general portion 21 that is connected to the front side of the enlarged portion 20 and has a constant or approximately constant cross-sectional area, and a reduced portion 22 that is connected to the front side of the general portion 21 and has a cross-sectional area that gradually decreases toward the opening 8, i.e., toward the front.

[0018] Similarly, the inner cylindrical portion 5 has an expanding portion 25 whose cross-sectional area gradually expands from the closed rear end toward the front, a general portion 26 that continues to the front of the expanding portion 25 and has a constant or approximately constant cross-sectional area, and a contracting portion 27 that continues to the front of the general portion 26 and whose cross-sectional area gradually decreases toward the opening 10, i.e., the front. The rear end of the inner cylindrical portion 5 is formed to be pointed toward the rear, and serves as a branching portion that branches the air received from the opening 7 into each flow path 14.

[0019] The expanded section 25 of the inner cylindrical section 5 is located inside the expanded section 20 of the outer cylindrical section 4, the general section 26 of the inner cylindrical section 5 is located inside the general section 21 of the outer cylindrical section 4, and the contracted section 27 of the inner cylindrical section 5 is located inside the contracted section 22 of the outer cylindrical section 4. Therefore, the air passage 12 is inclined so that it expands from the opening 7 toward the downstream side on the upstream side, and is inclined so that it contracts toward the opening 8 on the downstream side. Therefore, the flow paths 14 are inclined so that they move away from each other from the opening 7 on the upstream side, and so that they move closer to each other toward the opening 8 on the downstream side.

[0020] For example, the expansion sections 20 and 25 have the same or approximately the same inclination. Furthermore, the contraction sections 22 and 27 have the same or approximately the same inclination. Therefore, the air passage 12 and the flow path 14 are formed to have a constant or approximately constant cross-sectional area from the upstream end to the downstream end. Furthermore, the expansion sections 20 and 25 have the same or approximately the same vertical and horizontal inclination angles. Similarly, the contraction sections 22 and 27 have the same or approximately the same vertical and horizontal inclination angles.

[0021] In the illustrated example, the outer tube 4 and the inner tube 5 are each formed as a rectangular tube having upper, lower, left, and right side surfaces, the openings 7, 8, and 10 are each formed as a quadrilateral, for example, a square, and the air passage 12 is divided into four flow paths 14 corresponding to the respective side surfaces of the outer tube 4 and the inner tube 5. That is, the flow paths 14 are provided with a pair of first flow paths 14a and 14b in a predetermined first direction, for example, a vertical direction, which intersects or is perpendicular to the front-to-back direction, which is the air passage direction of the air passage 12, and a pair of second flow paths 14c and 14d in a horizontal direction, which is a predetermined second direction, which intersects or is perpendicular to the air passage direction and the first direction. However, the outer tube 4 and the inner tube 5 may be cylindrical or the like, the openings 7, 8, and 10 may be rectangular, circular, or another shape, and the number of flow paths 14 may be five or more.

[0022] Each adjustment member 15 is formed in a plate or flap shape. Each adjustment member 15 is movably mounted on, for example, the inner cylindrical portion 5. For example, each adjustment member 15 has a rear end rotatably supported on the inner cylindrical portion 5 and a front end that is a free end. Each adjustment member 15 is an opening / closing member or fin that can adjust the amount of airflow through the flow path 14 by adjusting the opening amount of the flow path 14 according to the amount of rotation. In this embodiment, each adjustment member 15 is capable of closing the flow path 14 at the maximum rotated position. The adjustment member 15 may have any shape as long as it can increase or decrease the amount of airflow through the flow path 14; however, in this embodiment, the adjustment member 15 is formed in a rectangular shape.

[0023] For example, in this embodiment, each adjustment member 15 is disposed in the general portion 26 of the inner cylindrical portion 5, and in the illustrated example, is disposed on each side surface of the general portion 26 of the inner cylindrical portion 5. An adjustment member 15 is provided for each flow path 14. In this embodiment, the adjustment members 15 include first adjustment members 15a and 15b for the first flow paths 14a and 14b, and second adjustment members 15c and 15d for the second flow paths 14c and 14d.

[0024] The adjustment member 15 is driven by a drive unit 30. At least a portion of the drive unit 30 is housed inside the inner cylindrical portion 5, and in this embodiment, the entire drive unit 30 is housed inside the inner cylindrical portion 5.

[0025] The drive unit 30 shown in Figures 1(a), 2(a), and 3(a) to 3(c), etc., includes a rotatable cam 32 and a link 33 that connects the cam 32 to the adjustment member 15. The cam 32 is a circular cam plate. A cam groove 34 is formed in the cam 32 to link the link 33, and the link 33 reciprocates based on the shape of the cam groove 34 in response to the rotation of the cam 32, causing the adjustment member 15 to open and close the flow path 14.

[0026] A plurality of cams 32 are provided. One or more cams 32 may be provided for each adjustment member 15, but in this embodiment, at least one of the cams 32 is shared by a plurality of adjustment members 15. In the illustrated example, a pair of cams 32 is provided. That is, the cams 32 include a first cam 32a and a second cam 32b. In this embodiment, the first cam 32a sets the operation of the first adjustment members 15a and 15b, and the second cam 32b sets the operation of the second adjustment members 15c and 15d. Therefore, the cam groove 34 is provided with first cam grooves 34a, 34b for operating the first adjustment members 15a, 15b, and second cam grooves 34c, 34d for operating the second adjustment members 15c, 15d, and the link 33 is provided with first links 33a, 33b connecting the first adjustment members 15a, 15b to the first cam grooves 34a, 34b, and second links 33c, 33d connecting the second adjustment members 15c, 15d to the second cam grooves 34c, 34d.

[0027] In the present embodiment, first cam groove 34a is formed on one surface of first cam 32a, and first cam groove 34b is formed on the other surface of first cam 32a. Also, second cam groove 34c is formed on one surface of second cam 32b, and second cam groove 34d is formed on the other surface of second cam 32b. However, the present invention is not limited to this, and first cam grooves 34a, 34b may be formed on one or the other surface of first cam 32a, and second cam grooves 34c, 34d may be formed on one or the other surface of second cam 32b.

[0028] The shape of the cam groove 34 is determined depending on the operation of the adjustment member 15. In this embodiment, the adjustment member 15 performs four operations: an operation to gradually change the flow path 14 from an open state to a closed state (first operation), an operation to maintain the closed state (second operation), an operation to gradually change the flow path 14 from a closed state to an open state (third operation), and an operation to maintain the open state (fourth operation).

[0029] That is, the cam groove 34 of this embodiment is formed with a first section 41 corresponding to the first operation, a second section 42 corresponding to the second operation, a third section 43 corresponding to the third operation, and a fourth section 44 corresponding to the fourth operation. The first section 41 is formed in an arc shape that gradually spreads away from the center toward the outer periphery in the rotation direction of the cam 32. The second section 42 is formed in an arc shape along the circumferential direction at the outer periphery of the cam 32. The third section 43 is formed in an arc shape that gradually spreads toward the center from the outer periphery in the rotation direction of the cam 32. The fourth section 44 is formed in an arc shape along the circumferential direction at the center of the cam 32. The cam groove 34 is formed in an annular shape with the first section 41 to the fourth section 44 smoothly connected to one another. In the illustrated example, the cam groove 34 has a first section 41 to a fourth section 44 set at intervals of 90° around the circumference of the cam 32, and the adjustment member 15 sequentially performs the above four operations each time the cam 32 rotates by 90°.

[0030] Furthermore, the operation timing of the first adjustment members 15a and 15b and the second adjustment members 15c and 15d must be shifted from each other to enable control of the direction of air blowing out from the opening 8. At the same time, it is preferable that the first adjustment members 15a and 15b and the second adjustment members 15c and 15d share the same timing for opening and closing the flow path 14 to set the air direction to a neutral direction where the air flows straight forward without being biased up, down, left, or right, or to enter a shutdown state where the air passage 12 is closed. Therefore, in this embodiment, the phases of the first cam groove 34a and the first cam groove 34b are shifted by 90° in the circumferential direction of the first cam 32a, and the phases of the second cam groove 34c and the second cam groove 34d are shifted by 90° in the circumferential direction of the second cam 32b. In the illustrated example, the starting point of the first section 41 of the first cam groove 34a is the starting point of the fourth section 44 of the first cam groove 34b, and the starting point of the first section 41 of the second cam groove 34c is the starting point of the fourth section 44 of the second cam groove 34d.

[0031] Regarding the first section 41 to the fourth section 44, only the second cam groove 34c is shown in Figure 3(b), but in the present embodiment, the first cam grooves 34a, 34b and the second cam groove 34d also have basically the same shape except for the circumferential phase and left and right, so they are not shown in the figures.

[0032] 1 to 3 may be rotated manually, but in this embodiment, it is driven by a drive device 46. That is, the drive unit 30 in this embodiment is equipped with the drive device 46. The drive device 46 is, for example, an actuator that converts electric power into motive power, and in this embodiment, a motor that converts electric power into rotational force, particularly a stepping motor, is preferably used. For example, the drive device 46 is electrically connected to a control device (ECU) mounted on the vehicle, and the rotation direction and rotation angle thereof are controlled.

[0033] The drive unit 46 may be disposed outside the main body 3, but in this embodiment it is disposed inside the inner cylinder 5. Furthermore, a drive unit 46 may be provided for each cam 32, but in this embodiment, one drive unit 46 is provided. The drive unit 46 is configured to selectively rotate the first cam 32a and the second cam 32b by utilizing rotation in one direction and rotation in the other direction.

[0034] Therefore, in this embodiment, a shaft 48 connected to the output shaft of the drive unit 46 is inserted through the center of the first cam 32a and the second cam 32b, which are arranged coaxially. The first cam 32a is connected to the shaft 48 via a first transmission unit 49a, which is a one-way clutch, and the second cam 32b is connected to the shaft 48 via a second transmission unit 49b, which is also a one-way clutch. The first transmission unit 49a and the second transmission unit 49b transmit only one rotational movement of the shaft 48 around its axis to the first cam 32a, and only the opposite rotational movement to the second cam 32b. That is, when the shaft 48 rotates in one direction, only the first cam 32a rotates in the same direction. When the shaft 48 rotates in the other direction, only the second cam 32b rotates in the other direction. The shaft 48 is arranged in the front-rear direction along the central axis of the inner cylindrical portion 5.

[0035] The first transmission part 49a is located on the opposite side of the first cam 32a to the second cam 32b, and the second transmission part 49b is located on the opposite side of the second cam 32b to the first cam 32a. That is, in this embodiment, the first transmission part 49a and the second transmission part 49b are one-way clutches having the same characteristics, and the directions of connection to the shaft 48 are opposite to the axial direction of the shaft 48, so that the first cam 32a and the second cam 32b are selectively linked in response to rotation of the shaft 48 in one direction or the other.

[0036] When adjusting the wind direction in the up-down direction, the wind direction adjustment device 1 rotates only the first cam 32a in one direction via the first transmission part 49a by the drive unit 46 rotating the shaft 48 in one direction, and when adjusting the wind direction in the left-right direction, the drive unit 46 rotates only the second cam 32b in the other direction via the second transmission part 49b.

[0037] For example, when the rotation angle of first cam 32a in one direction is 0° (reference angle), one end of first link 33a is at the start of first section 41 of first cam groove 34a, and one end of first link 33b is at the start of fourth section 44 of first cam groove 34b, so that first adjustment members 15a, 15b connected to the other ends of first links 33a, 33b open both first flow paths 14a, 14b to the maximum. Therefore, as shown in FIG. 1(a), the airflow rates of first flow paths 14a, 14b are equal or approximately equal in the vertical direction, and these flow paths converge at opening 8 along the downstream slope, so that the vertical components of each flow path cancel each other out, and air is blown out from opening 8 without any vertical wind direction.

[0038] 5(a), when the rotation angle of first cam 32a in one direction is between 0° and 90°, the larger the rotation angle, the smaller the opening degree of first flow path 14a caused by first adjustment member 15a and the smaller the airflow rate through first flow path 14a, while first adjustment member 15b maintains first flow path 14b in an open state. Therefore, with respect to the air that joins at opening 8, the influence of the wind direction component of the air that passes through first flow path 14b and flows upward becomes relatively larger as the rotation angle of first cam 32a becomes larger, and therefore the upward angle of the air blowing out from opening 8 is set to a large value depending on the rotation angle of first cam 32a, i.e., the opening degree of first flow path 14a caused by first adjustment member 15a. When the rotation angle of the first cam 32a in one direction is 90°, one end of the first link 33a is at the end of the first section 41 of the first cam groove 34a, i.e., the start of the second section 42, so that the first adjustment member 15a connected to the other end of the first link 33a blocks the first flow path 14a, and one end of the first link 33b is at the end of the fourth section 44 of the first cam groove 34b, i.e., the start of the first section 41, so that the first adjustment member 15b connected to the other end of the first link 33b opens the first flow path 14b to the maximum.As a result, as shown in Figure 1(b), in the vertical direction, wind flows only through the first flow path 14b and blows upward from the opening 8 along the downstream slope, resulting in a maximum upward swing state.

[0039] In this manner, in this embodiment, the first adjustment members 15a and 15b change the opening degrees of the first flow paths 14a and 14b, respectively, according to the example table shown in Figure 4(a) depending on the rotation angle of the first cam 32a, and thereby the degree to which the vertical components of the air direction components interfere with each other changes depending on the air flow rates of the first flow paths 14a and 14b, and the vertical air direction from the opening 8 is adjusted.

[0040] On the other hand, for example, when the rotation angle of second cam 32b in the other direction is 0° (reference angle), one end of second link 33c is at the start of first section 41 of second cam groove 34c, and one end of second link 33d is at the start of fourth section 44 of second cam groove 34d, so that second adjustment members 15c, 15d connected to the other ends of second links 33c, 33d open both second flow paths 14c, 14d to the maximum. Therefore, as shown in FIG. 2(a), the airflow rates of second flow paths 14c, 14d are equal or approximately equal in the left-right direction, and these flow paths converge at opening 8 along the downstream slope, so that the left-right components cancel each other out, and air is blown out from opening 8 without any left-right wind direction.

[0041] 5(b), when the rotation angle of second cam 32b in the other direction is between 0° and 90°, the larger the rotation angle, the smaller the opening degree of second flow path 14c caused by second adjustment member 15c and the smaller the airflow rate through second flow path 14c, while second adjustment member 15d maintains second flow path 14d in an open state. Therefore, with respect to the air that joins at opening 8, the influence of the wind direction component of the air that passes through second flow path 14d and heads rightward becomes relatively greater as the rotation angle of second cam 32b becomes larger, and therefore the rightward angle of the air blowing out from opening 8 is set to a large value depending on the rotation angle of second cam 32b, i.e., the opening degree of second flow path 14c caused by second adjustment member 15c. When the rotation angle of the second cam 32b in the other direction is 90°, one end of the second link 33c is at the end of the first section 41 of the second cam groove 34c, i.e., the start of the second section 42, so that the second adjustment member 15c connected to the other end of the second link 33c blocks the second flow path 14c, and one end of the second link 33d is at the end of the fourth section 44 of the second cam groove 34d, i.e., the start of the first section 41, so that the second adjustment member 15d connected to the other end of the second link 33d opens the second flow path 14d to its maximum.As a result, as shown in Figure 2(b), in the left-right direction, the wind flows only through the second flow path 14d and blows out to the left from the opening 8 along the downstream slope, resulting in a maximum left-swing state.

[0042] In this manner, in this embodiment, the second adjustment members 15c, 15d change the opening degrees of the second flow paths 14c, 14d, respectively, according to the example table shown in Figure 5(b) depending on the rotation angle of the second cam 32b, and thereby the degree to which the left-right components of the wind direction components interfere with each other changes depending on the airflow volume of the second flow paths 14c, 14d, and the left-right wind direction from the opening 8 is adjusted.

[0043] Therefore, the direction of the airflow from the opening 8 can be adjusted to any direction by combining the rotation angles of the first cam 32a and the second cam 32b.

[0044] In particular, in this embodiment, if the rotation angles of the first cam 32a and the second cam 32b are each set to 180°, the first adjustment members 15a and 15b will block the first flow paths 14a and 14b, and the second adjustment members 15c and 15d will block the second flow paths 14c and 14d, thereby preventing air from blowing out of the opening 8 and achieving a closed state (shut state).

[0045] Thus, according to this embodiment, the downstream side of the air passage 12 formed between the outer tube portion 4 and the inner tube portion 5 is inclined toward the center of the downstream opening 8, and the air flow rate of at least one of the at least three flow paths 14 dividing the air passage 12 is adjusted by the adjustment member 15. This makes it possible to change the directional component of the wind blowing out from the flow paths 14 along the slope of the downstream side of the air passage 12 to join at the opening 8 according to the air flow rate of the flow paths 14, thereby enabling the wind direction to be controlled in the desired direction with a simple configuration.

[0046] By providing the adjusting member 15 for each flow path 14, the airflow direction can be reliably controlled to a desired direction.

[0047] By operating each adjustment member 15 by a single driving device 46, the configuration can be simplified and the cost of the system can be reduced.

[0048] By disposing the drive device 46 inside the inner cylindrical portion 5, the layout efficiency of the airflow direction control device 1 as a whole can be improved, and the operating noise of the drive device 46 can be suppressed.

[0049] The adjustment member 15 is operated in response to the rotation of the cam 32 by the drive device 46, The first adjustment members 15a, 15b, which adjust the air flow rate of the paired first flow paths 14a, 14b in the vertical direction, are operated in response to the rotation of one cam, the first cam 32a, and the second adjustment members 15c, 15d, which adjust the air flow rate of the paired second flow paths 14c, 14d in the horizontal direction, are operated in response to the rotation of the other cam, the second cam 32b, so that the operation of the first cam 32a and the operation of the second cam 32b can be separated in response to the rotation direction of the drive unit 46, making it easier to control each adjustment member 15 using a single drive unit 46.

[0050] In one embodiment, the number of cams 32 (cam grooves 34) may be increased to control the adjustment member 15 more precisely.

[0051] Furthermore, the number of adjustment members 15 is not limited to four, but may be three, five or more, depending on the number of flow paths 14. [Industrial Applicability]

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

[0053] 1 Wind direction adjustment device 4. Outer cylinder 5 Inner cylinder 7,8 Opening 12 Ventilation channel 14 Flow path 14a, 14b First flow path 14c,14d Second flow path 15 Adjustment member 32 Cam 46 Drive unit

Claims

1. A wind direction adjustment device comprising an outer cylinder portion having openings at both ends and an inner cylinder portion located inside the outer cylinder portion, wherein an air passage is formed between the outer cylinder portion and the inner cylinder portion, communicating between the openings, The air passage is inclined downstream toward the center of the downstream opening and is divided into at least three flow paths, an adjusting member for adjusting the amount of airflow in at least one of the flow paths; A wind direction adjustment device characterized by:

2. The adjusting member is provided for each flow path.

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

3. Each adjustment member is operated by a respective driving device.

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

4. The drive unit is disposed inside the inner cylinder.

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

5. a cam rotated by a drive device; The adjustment member is operated in response to the rotation of the cam.

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

6. The flow path includes a first flow path paired in a predetermined first direction intersecting with the air flow direction of the air passage, and a second flow path paired in a predetermined second direction intersecting with the air flow direction and the first direction, an adjusting member that adjusts the amount of air passing through the first flow path is operated in response to rotation of one cam in one direction; An adjusting member for adjusting the amount of air passing through the second flow path is operated in response to rotation of another cam in the other direction opposite to the one direction.

6. The wind direction adjusting device according to claim 5.

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