Wind direction adjustment device

Abstract

To provide a wind direction adjustment device having an improved wind adjustment function while securing appearance.SOLUTION: A wind direction adjustment device 10 has a case 14, an air outlet 21, and paired wind direction adjustment blades 25. The case 14 includes a side wall 16, and a ventilation passage 17 that is surrounded by the side wall 16 and guides wind in a predetermined ventilation direction. The air outlet 21 communicates with the ventilation passage 17, and blows out wind. The paired wind direction adjustment blades 25 are arranged on the ventilation passage 17 so as to be mutually separated on opposite sides relative to a central part of the ventilation passage 17 in a direction crossing a ventilation direction. The paired wind direction adjustment blades 25 are movably supported by the case 14 so that its angle can be changed relative to the ventilation direction. Each of the wind direction adjustment blades 25 has a plate-like blade body part 27, and a shaft part 29 supported to the case 14 side. The shaft part 29 is positioned on a back side of the central part of the ventilation passage 17 and on a leeward end or its leeward side of the ventilation passage 17 relative to the blade body part 27.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an airflow direction adjusting device having an airflow direction adjusting body whose angle can be changed with respect to a ventilation direction. [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] In the case of a thin airflow adjustment device with a low height of the ventilation passage, the number of vertical airflow adjustment blades is limited, making it difficult to properly adjust the airflow direction. Therefore, a configuration is known in which auxiliary airflow adjustment blades are separately arranged on the back side of the finisher, which is a panel having an air outlet that is an opening (see, for example, Patent Document 1).

[0004] In such a configuration, although the auxiliary airflow direction adjustment blade is difficult to see from the air outlet, there is a large gap between the airflow direction adjustment blade located at the air outlet and the airflow direction adjustment blade located on the back side of the finisher, which is detrimental to air direction adjustment.

[0005] Furthermore, in an airflow direction adjustment device capable of blocking an air outlet using multiple airflow direction adjustment blades, there is known one in which the shaft portion of each airflow direction adjustment blade is offset relative to the airflow direction changing surface of the plate-shaped blade main body (see, for example, Patent Document 2).

[0006] However, in the case of this configuration, the offset direction of the shaft portion is the same for all the airflow direction adjustment blades, so this does not contribute to improving the airflow direction adjustment. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2011-51385 A (Pages 5-10, Figures 1-6) [Patent Document 2] JP 2014-221631 A (Pages 5-8, Figures 1-3) Summary of the Invention [Problem to be solved by the invention]

[0008] As described above, there is a demand for an airflow direction adjustment device that improves the airflow direction adjustment function while maintaining the appearance.

[0009] The present invention has been made in consideration of the above points, and has an object to provide an airflow direction adjustment device that improves the airflow direction adjustment function while maintaining an attractive appearance. [Means for solving the problem]

[0010] The airflow direction adjusting device according to claim 1 includes a case including a side wall and an air passage surrounded by the side wall for guiding air in a predetermined ventilation direction, and a hand Opening through which wind blows a panel provided on the leeward end side of the air passage and a pair of airflow direction adjustment blades arranged in the air passage on opposite sides of a center of the air passage in a direction intersecting the airflow direction and movably supported by the case so that the angle of the airflow direction can be changed with respect to the airflow direction. Each of the airflow direction adjustment blades includes a blade main body portion having a plate shape, a protrusion protruding from the blade body to a rear side of a center portion of the air passage; and a shaft portion supported by the case side, The protrusion is formed with The rear side of the central portion of the air passage with respect to the blade body portion The leeward end of And, the wind direction adjustment blade is located at the leeward end of the air passage or on the leeward side thereof, and is located outside with respect to the projection of the air passage direction of the opening, Each of the panels is disposed behind the other. When changing the angle, Rotate toward the center of the air passage The blade body of the airflow direction adjustment blade At least a portion of the insulating film is exposed in the opening. The leeward end is against the edge of the opening On the leeward side Approaching , rotates to the opposite side to the center of the air passage The downwind end of the blade body of the airflow direction adjustment blade is On the windward sideThey are linked together so as to move apart.

[0011] request request 2 The airflow direction adjusting device according to the present invention is 1 The described airflow direction adjustment device further includes another airflow direction adjustment blade that is arranged in the center of the air passage and is linked to the paired airflow direction adjustment blade. Effect of the Invention

[0012] According to the airflow direction adjustment device of claim 1, the airflow direction adjustment blade is configured so that the downwind end of the blade body is in contact with the opening at any swing angle. Airflow direction projection It can be placed in a position where it will not get inside and where the wind will not hit the edge of the opening when it is swung. At least a part of the blade body is exposed in the opening. This allows for improved wind direction adjustment functionality while maintaining the appearance.

[0013] request request 2 According to the described airflow direction adjusting device, 1 In addition to the effects of the described wind direction adjustment device, the wind direction can be adjusted by the paired wind direction adjustment blade and the other wind direction adjustment blade, and when the paired wind direction adjustment blades are swung, the distance between one of the wind direction adjustment blades and the other wind direction adjustment blade is narrowed, thereby reducing the amount of wind blowing between the wind direction adjustment blade and the other wind direction adjustment blade, thereby further improving the wind direction performance. [Brief description of the drawings]

[0014] [Figure 1] 1A is a cross-sectional view showing an embodiment of a wind direction adjustment device of the present invention, in which (a) shows the neutral wind direction adjustment position of the wind direction adjustment blades of the wind direction adjustment device, (b) shows the wind direction adjustment position of the wind direction adjustment device in one direction, and (c) shows the wind direction adjustment position of the wind direction adjustment device in the other direction. [Diagram 2] FIG. [Diagram 3] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0016] In FIG. 3, 10 is a wind direction adjustment device. The wind direction adjustment device 10 is also called an air outlet, a ventilator, or the like, 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.

[0017] The airflow direction control device 10 includes a main body 12. The main body 12 has a case 14 which is a duct portion serving as a structural member. In this embodiment, the main body 12 also has a panel 15 which is a design member attached to the case 14.

[0018] 1(a) to 1(c) and 2, case 14 has side walls 16, and side walls 16 enclose an air passage 17 therein. One end of case 14, which is the rear end, is an inlet 18 that receives air into air passage 17, and the other end of case 14, which is the front end, is an outlet 19 that blows air out of air passage 17. In other words, air passage 17 is formed between inlet 18 and outlet 19, communicating them. In this embodiment, a panel 15 is attached to outlet 19.

[0019] The side wall 16 is formed in a cylindrical shape in the front-rear direction. In the illustrated example, the side wall 16 is formed in a square cylindrical shape. The direction parallel to the central axis of the side wall 16 is the ventilation direction of the ventilation path 17. In this embodiment, the ventilation direction of the ventilation path 17 is the front-rear direction, and ventilation is from the rear to the front. That is, in the ventilation path 17, the rear side is the upstream side in the ventilation direction, and the front side is the downstream side in the ventilation direction.

[0020] The side wall 16 has a predetermined length in the ventilation direction of the ventilation passage 17. In this embodiment, the side wall 16 is flat in the vertical direction and elongated in the horizontal direction, that is, horizontally long. Therefore, the airflow direction adjustment device 10 is formed in a horizontal thin shape. The side wall 16 integrally has a pair of end wall portions 16a that face each other across the center of the ventilation passage 17, i.e., the central axis of the side wall 16 or the case 14, and a pair of side wall portions 16b that connect the pair of end wall portions 16a. The pair of end wall portions 16a face each other in the vertical direction, and the pair of side wall portions 16b face each other in the horizontal direction. The entrance 18 is surrounded by the rear ends of the pair of end wall portions 16a, 16a and the pair of side wall portions 16b, 16b, and the exit 19 is surrounded by the front ends of the pair of end wall portions 16a, 16a and the pair of side wall portions 16b, 16b.

[0021] The panel 15 is also called a finisher or the like. The panel 15 is formed in a plate shape. The panel 15 is formed with an air outlet 21, which is an opening communicating with the outlet 19. In the present embodiment, the air outlet 21 is formed in a rectangular shape. In the illustrated example, the air outlet 21 is formed long in the left-right direction, that is, horizontally long. In the illustrated example, the opening direction of the air outlet 21 is the front-rear direction.

[0022] As shown in FIG. 1(a) to FIG. 1(c), an airflow direction adjusting body 23 is disposed in the air passage 17 inside the case 14 facing the air outlet 21. That is, the airflow direction adjusting body 23 is located on the downstream side of the air passage 17, on the outlet 19 side of the air passage 17 in this embodiment. The airflow direction adjusting body 23 includes a pair of (one) airflow direction adjusting blades 25. The airflow direction adjusting blades 25 are also called louvers. Each airflow direction adjusting blade 25 includes (one) blade main body portion 27. The blade main body portion 27 is formed in a plate shape. At least one of the main surfaces of the blade main body portion 27 is (one) guide surface 28 that guides the wind. Each airflow direction adjusting blade 25 includes (one) shaft portion 29. Each airflow direction adjusting blade 25 is disposed in the case 14 so that the angle of the guide surface 28 with respect to the airflow direction can be changed by the shaft portion 29. In the illustrated example, each airflow direction adjustment blade 25 is supported by the case 14 so that the guide surfaces 28 can rotate about the shaft 29 from a direction parallel or approximately parallel to the airflow direction to a direction intersecting the airflow direction at an acute angle. As shown in Fig. 2, each airflow direction adjustment blade 25 has (one) connecting shaft 31. The connecting shafts 31 of the multiple airflow direction adjustment blades 25 are each connected to a link 32 that is a connecting rod, and the guide surfaces 28 are configured to rotate in the same direction while remaining parallel or approximately parallel to each other.

[0023] In this embodiment, the airflow direction adjustment blade 25 is set in pairs. That is, in this embodiment, the airflow direction adjustment blade 25 is set to a first airflow direction adjustment blade 25a and a second airflow direction adjustment blade 25b. As shown in FIG. 1(a) to FIG. 1(c), the first airflow direction adjustment blade 25a and the second airflow direction adjustment blade 25b are respectively arranged on opposite sides of the center of the air passage 17 in a direction intersecting the ventilation direction, that is, the center axis of the side wall 16 or the case 14. That is, the first airflow direction adjustment blade 25a and the second airflow direction adjustment blade 25b are biased to one side and the other side with the center of the air passage 17 as a reference. In addition, the first airflow direction adjustment blade 25a and the second airflow direction adjustment blade 25b are arranged close to the edge of the air outlet 21. Furthermore, the first airflow direction adjustment blade 25a and the second airflow direction adjustment blade 25b are located on the opposite side to the center of the airflow outlet 21 with respect to the edges 21a and 21b of the airflow outlet 21, that is, on the outside.

[0024] In this embodiment, the first airflow direction adjustment blade 25a is biased upward with respect to the center of the air passage 17, and the second airflow direction adjustment blade 25b is biased downward with respect to the center of the air passage 17. The downwind end of the blade main body 27 of the first airflow direction adjustment blade 25a is located close to a position a predetermined distance away on the upwind side, which is the upstream side in the airflow direction, from the upper edge 21a of the air outlet 21, and the downwind end of the blade main body 27 of the second airflow direction adjustment blade 25b is located close to a position a predetermined distance away on the upwind side, which is the upstream side in the airflow direction, from the lower edge 21b of the air outlet 21. In the illustrated example, the first airflow direction adjustment blade 25a and the second airflow direction adjustment blade 25b are in a neutral air distribution position shown in FIG. 1(a), that is, a position where the air is guided along the ventilation direction of the air passage 17, and the guide surface 28 is flush with the edges 21a, 21b of the airflow outlet 21 when viewed from the front of the airflow outlet 21, or is in a position where it is hidden by the edges 21a, 21b. The first airflow direction adjustment blade 25a has the guide surface 28 only on the lower side of the blade main body 27, and the upper side of the blade main body 27 does not basically contribute to guiding the air. Similarly, the second airflow direction adjustment blade 25b has the guide surface 28 only on the upper side of the blade main body 27, and the lower side of the blade main body 27 does not basically contribute to guiding the air. In this embodiment, the edges 21a, 21b of the airflow outlet 21 are inclined so as to gradually expand the airflow outlet 21 in the direction in which the air is blown out from the airflow outlet 21, that is, toward the front side which is the downstream side.

[0025] The shaft portion 29 is offset from the blade main body 27 toward the rear side of the center of the air passage 17, and is offset from the leeward end (front end) or the leeward side of the air passage 17. That is, the shaft portion 29 is located on the rear side of the blade main body 27, that is, on the opposite side to the guide surface 28. The shaft portion 29 is located at a position overlapping with an imaginary line in a direction perpendicular to the air flow direction of the leeward end of the blade main body 27 (on an extension of the front end edge of the leeward end), or at a position protruding further forward from the leeward end. In this embodiment, the shaft portion 29 of the first airflow direction adjustment blade 25a is disposed at a position protruding upward from the leeward end of the blade main body 27 (downstream side in the airflow direction), and the shaft portion 29 of the second airflow direction adjustment blade 25b is disposed at a position protruding downward from the leeward end of the blade main body 27 (downstream side in the airflow direction). In this embodiment, the shaft portion 29 is formed on a protrusion 33 that protrudes from the blade main body portion 27 .

[0026] The shaft portion 29 is formed on both sides of the blade main body portion 27. In this embodiment, the shaft portion 29 is rotatably supported by a spacer 35 that forms a part of the case 14. The spacer 35 is attached to the side wall 16 of the case 14. The spacer 35 is formed so as to gradually incline toward the center of the air passage 17 toward the downstream side. As shown in FIG. 2, the spacer 35 is formed with a bearing portion 36 into which the shaft portion 29 is rotatably inserted. In this embodiment, the spacer 35 is set with a first spacer 35a and a second spacer 35b. The first spacer 35a rotatably supports the shaft portion 29 of the first airflow direction adjustment blade 25a, and the second spacer 35b rotatably supports the shaft portion 29 of the second airflow direction adjustment blade 25b. The first spacer 35a is disposed across the upper end wall portion 16a of the side wall 16 of the case 14 and the back side, i.e., the rear side, of the panel 15. The second spacer 35b is disposed across the lower end wall portion 16a of the side wall 16 of the case 14 and the back surface side, ie, the rear side, of the panel 15.

[0027] Moreover, the connecting shaft portion 31 is formed at a position away from the shaft portion 29 with respect to the blade main body portion 27. In this embodiment, the connecting shaft portion 31 is located at the end side of the blade main body portion 27 opposite to the shaft portion 29. The connecting shaft portion 31 is offset from the blade main body portion 27 toward the rear side of the center of the air passage 17, and is offset from the windward end (rear end) of the air passage 17 toward the leeward side (overhang). That is, the connecting shaft portion 31 is located on the rear side of the blade main body portion 27, that is, on the opposite side to the guide surface 28. The connecting shaft portion 31 is located at a position overlapping with a virtual line in a direction perpendicular to the air flow direction of the windward end of the blade main body portion 27 (on an extension of the rear end edge of the windward end), or at a position protruding forward from the windward end. In this embodiment, the connecting shaft portion 31 of the first airflow direction adjustment blade 25a is disposed above the windward end of the blade main body 27 (downstream side in the airflow direction), and the connecting shaft portion 31 of the second airflow direction adjustment blade 25b is disposed below the windward end of the blade main body 27 (downstream side in the airflow direction). An imaginary line connecting the central axis of the connecting shaft portion 31 and the central axis of the shaft portion 29 is parallel or approximately parallel to the guide surface 28. That is, the connecting shaft portion 31 and the shaft portion 29 are at equal or approximately equal distances from the guide surface 28, and are located away from the main surface of the blade main body 27 on the opposite side to the guide surface 28, behind the center of the air passage 17. In this embodiment, the connecting shaft portion 31 is formed on a bearing protruding portion 37 protruding from the blade main body 27. The connecting shaft portion 31 is formed on one side of the blade main body 27. The connecting shaft portion 31 is formed parallel or approximately parallel to the shaft portion 29. 2, the connecting shaft portion 31 is rotatably fitted with a clearance and supported by a connecting bearing portion 38 formed in the link 32. The connecting bearing portion 38 is formed in the shape of a round hole.

[0028] Furthermore, as shown in FIG. 1(a) to FIG. 1(c) and FIG. 2, in this embodiment, the airflow direction adjustment body 23 includes another airflow direction adjustment blade 41. The other airflow direction adjustment blade 41 is also called a central louver. In the illustrated example, the other airflow direction adjustment blade 41 is disposed between the pair of airflow direction adjustment blades 25, preferably overlapping the central portion of the air passage 17. The other airflow direction adjustment blade 41 includes another blade main body portion 43. The other blade main body portion 43 is formed in a plate shape. The main surfaces of the other blade main body portion 43 are (other) guide surfaces 45, 46 that guide the air. The other airflow direction adjustment blade 41 also includes another shaft portion 47. The other airflow direction adjustment blade 41 is disposed in the case 14 so that the angle of the guide surfaces 45, 46 with respect to the airflow direction can be changed by the other shaft portion 47. In the illustrated example, the other airflow direction adjustment blade 41 is supported by the case 14 so as to be rotatable about the other shaft portion 47 from a direction in which the guide surfaces 45, 46 are parallel or approximately parallel to the airflow direction to a direction intersecting the airflow direction at an acute angle. The other airflow direction adjustment blade 41 also includes another connecting shaft portion 49. The other airflow direction adjustment blade 41 is configured such that the other connecting shaft portion 49 is connected to the link 32, and is linked to the paired airflow direction adjustment blade 25 and rotates in the same direction as the paired airflow direction adjustment blade 25.

[0029] The other shaft portion 47 is located at the center in the thickness direction of the other blade body portion 43. The other shaft portion 47 is located near the leeward end portion of the other blade body portion 43. In this embodiment, the other shaft portion 47 is located downstream in the ventilation direction, that is, forward, from the shaft portion 29. The other shaft portion 47 is formed on both sides of the other blade body portion 43. In this embodiment, the other shaft portion 47 is rotatably supported on the side wall portion 16b (FIG. 2) of the side wall 16 of the case 14. When the other shaft portion 47 is supported on the side wall portion 16b (FIG. 2) of the side wall 16 of the case 14, the leeward end portion of the other blade body portion 43 is located on the opening surface of the air outlet 21 or in a rear position upstream of the opening surface in the ventilation direction.

[0030] Further, the other connecting shaft portion 49 is formed at a position away from the other shaft portion 47 with respect to the other blade main body portion 43. In the illustrated example, the other connecting shaft portion 49 is located at the center in the thickness direction of the other blade main body portion 43. The other connecting shaft portion 49 is formed on one side of the other blade main body portion 43. The other connecting shaft portion 49 is formed parallel or approximately parallel to the other shaft portion 47. The other connecting shaft portion 49 is rotatably inserted and supported in the other connecting bearing portion 51 formed in the link 32, as shown in FIG. 2.

[0031] Furthermore, the other airflow direction adjustment blade 41 is formed with an operation knob 53 that allows an occupant or the like to manually operate the rotation direction of the airflow direction adjustment body 23. In this embodiment, the operation knob 53 is integrally provided to protrude from the downwind end of the other blade main body portion 43 and is exposed to the air outlet 21.

[0032] When assembling the airflow direction adjustment device 10, the airflow direction adjustment body 23, which is made up of the first airflow direction adjustment blade 25a, the second airflow direction adjustment blade 25b, and the other airflow direction adjustment blades 41 axially connected by the link 32, has the shaft portion 29 of the first airflow direction adjustment blade 25a and the shaft portion 29 of the second airflow direction adjustment blade 25b rotatably supported by the bearing portion 36 of the first spacer 35a and the bearing portion 36 of the second spacer 35b. Next, the airflow direction adjustment body 23, the first spacer 35a, and the second spacer 35b are assembled inside the case 14, and the other shaft portion 47 of the other airflow direction adjustment blade 25 is rotatably supported on the side wall 16 of the case 14. Then, the panel 15 is assembled to the case 14 to construct the airflow direction adjustment device 10.

[0033] 1(a) shows a neutral air distribution position, FIG. 1(b) shows an upward air distribution position, and FIG. 1(c) shows a downward air distribution position. In each position, the air passing through the air passage 17 is guided by the guide surface 28 of the first airflow direction adjustment blade 25a and the guide surface 45 of the other airflow direction adjustment blade 41, and is also guided by the guide surface 28 of the second airflow direction adjustment blade 25b and the guide surface 46 of the other airflow direction adjustment blade 41, passes between the first airflow direction adjustment blade 25a and the other airflow direction adjustment blade 41, and between the second airflow direction adjustment blade 25b and the other airflow direction adjustment blade 41, and is blown out from the air outlet 21.

[0034] 1(a), in the neutral air distribution position, the guide surface 28 of the first airflow direction adjustment blade 25a and the guide surface 28 of the second airflow direction adjustment blade 25b do not advance toward the inside of the airflow outlet 21 relative to the edges 21a, 21b of the airflow outlet 21 when viewed from the front side of the airflow outlet 21. In other words, in the neutral air distribution position, the airflow direction adjustment blade 25 is not visible on the airflow outlet 21 side. Therefore, from the user side such as a passenger, the airflow direction adjustment device 10 has a slim appearance as if only the other airflow direction adjustment blade 41 was arranged at the airflow outlet 21, and the appearance of the airflow direction adjustment device 10 can be improved.

[0035] When a user such as a passenger pinches the operation knob 53 from this neutral air distribution position and operates the airflow direction adjustment body 23 to the upward air distribution position, for example as shown in FIG. 1(b), the other airflow direction adjustment blade 41 rotates about the other shaft portion 47, and the airflow direction adjustment blade 25 connected to the other airflow direction adjustment blade 41 via the link 32 rotates about the shaft portion 29. At this time, since the shaft portion 29 of the airflow direction adjustment blade 25 is offset to the outside, which is the case 14 side, and downstream side with respect to the blade main body portion 27, in the first airflow direction adjustment blade 25a, the blade main body portion 27 advances to the center of the air passage 17 with the shaft portion 29 as the center, and the windward end side is exposed in the air outlet 21, and at the same time, the leeward end side moves downward downstream, that is, by protruding so as to approach the back surface of the panel 15 and the edge portion 21a of the air outlet 21.

[0036] In the neutral airflow distribution position, the airflow direction adjustment blade 25 has a gap of a predetermined distance between the downwind end of the blade body 27 of the airflow direction adjustment blade 25 and the panel 15, so that even if the first airflow direction adjustment blade 25a protrudes toward the air outlet 21 as described above, it does not interfere with the panel 15, and the gap between the downwind end of the first airflow direction adjustment blade 25a and the edge 21a of the air outlet 21 is small, resulting in a good appearance. In particular, when the airflow direction adjustment device 10 is disposed above the viewpoint of the occupant, such as on the roof of the vehicle cabin, the gap between the blade body 27 of the upper first airflow direction adjustment blade 25a and the edge 21a of the air outlet 21 is minimized, resulting in a good appearance. In addition, the guide surface 28 of the first airflow direction adjustment blade 25a is located on the same plane or approximately on the same plane as the edge 21a of the air outlet 21, so that the air flowing along the guide surface 28 does not collide with the edge 21a of the air outlet 21 and scatter. Furthermore, the distance between the first airflow direction adjustment blade 25a and the other airflow direction adjustment blades 41 that have rotated in the same direction as the first airflow direction adjustment blade 25a becomes narrower, and the upstream side of the guide surface 28 also becomes lower relative to the projection of the airflow direction onto the air outlet 21, and the distance between the guide surfaces 28, 45 becomes narrower, thereby reducing the amount of air passing through between the first airflow direction adjustment blade 25a and the other airflow direction adjustment blades 41. Furthermore, in the upward swing air distribution position, the protruding portion 33 of the first airflow direction adjustment blade 25a is parallel or approximately parallel to the panel 15.

[0037] In the second airflow direction adjustment blade 25b, the blade body 27 moves away from the center of the air passage 17 around the shaft 29, and at the same time, the downwind end moves upstream, that is, away from the rear surface of the panel 15 and the edge 21b of the air outlet 21, and approaches relatively to the other airflow direction adjustment blades 41, narrowing the gap between the guide surfaces 28, 46. Thus, the wind at the lower part of the air passage 17 can be guided from below toward the air outlet 21 along these guide surfaces 28, 46. Although the gap between the blade body 27 of the lower second airflow direction adjustment blade 25b and the edge 21b of the air outlet 21 widens, it is difficult to see from the passenger's viewpoint, and the appearance is unlikely to be a problem, particularly when the airflow direction adjustment device 10 is disposed above the passenger's viewpoint, such as on the roof of the vehicle cabin.

[0038] On the other hand, when a user such as a passenger pinches the operation knob 53 from the neutral air distribution position and operates the airflow direction adjustment body 23 to the downward air distribution position, for example as shown in FIG. 1(c), the other airflow direction adjustment blade 41 rotates about the other shaft portion 47, and the airflow direction adjustment blade 25 connected to the other airflow direction adjustment blade 41 via the link 32 rotates about the shaft portion 29. At this time, since the shaft portion 29 of the airflow direction adjustment blade 25 is offset to the outside, which is the case 14 side, and downstream side with respect to the blade main body portion 27, in the second airflow direction adjustment blade 25b, the blade main body portion 27 advances to the center of the air passage 17 about the shaft portion 29, and the windward end side is exposed inside the air outlet 21, and at the same time, the leeward end side moves upward downstream, that is, by protruding so as to approach the back surface of the panel 15 and the edge portion 21b of the air outlet 21.

[0039] In the neutral air distribution position, the airflow direction adjustment blade 25 has a gap of a predetermined distance between the downwind end of the blade body 27 of the airflow direction adjustment blade 25 and the panel 15, so that even if the second airflow direction adjustment blade 25b protrudes toward the air outlet 21 as described above, it does not interfere with the panel 15, and the gap between the downwind end of the second airflow direction adjustment blade 25b and the edge 21b of the air outlet 21 is small, improving the appearance. In particular, when the airflow direction adjustment device 10 is disposed below the viewpoint of the occupants, such as on the instrument panel in the vehicle interior, the gap between the blade body 27 of the lower second airflow direction adjustment blade 25b and the edge 21b of the air outlet 21 is minimized, resulting in a good appearance. In addition, the guide surface 28 of the second airflow direction adjustment blade 25b is flush or approximately flush with the edge 21b of the air outlet 21, so that the air flowing along the guide surface 28 does not collide with the edge 21b of the air outlet 21 and scatter. Furthermore, the distance between the second airflow direction adjustment blade 25b and the other airflow direction adjustment blades 41 that rotate in the same direction as the second airflow direction adjustment blade 25b is narrowed, and the distance between the guide surfaces 28, 46 is narrowed, so that the amount of air blowing through between the second airflow direction adjustment blade 25b and the other airflow direction adjustment blades 41 is reduced. In addition, in the downward air distribution position, the protruding portion 33 of the second airflow direction adjustment blade 25b is parallel or approximately parallel to the panel 15.

[0040] In the first airflow direction adjustment blade 25a, the blade body 27 moves away from the center of the air passage 17 around the shaft 29, and at the same time, the leeward end moves downward on the upstream side, that is, away from the rear surface of the panel 15 and the edge 21a of the air outlet 21, and the upstream side of the guide surface 28 also rises relatively to the projection of the airflow direction onto the air outlet 21 and moves relatively closer to the other airflow direction adjustment blades 41, narrowing the gap between the guide surfaces 28, 45. Thus, the wind in the upper part of the air passage 17 can be guided from above toward the air outlet 21 along these guide surfaces 28, 45. Although the gap between the blade body 27 of the upper first airflow direction adjustment blade 25a and the edge 21a of the air outlet 21 widens, it is difficult to see from the viewpoint of the occupant, and the appearance is unlikely to be a problem, especially when the airflow direction adjustment device 10 is disposed below the viewpoint of the occupant, such as on the instrument panel in the vehicle cabin.

[0041] Thus, according to one embodiment, the shafts 29 of the pair of airflow direction adjustment blades 25 arranged in the airflow passage 17 on opposite sides of the center of the airflow passage 17 are arranged behind the blade main body 27 and at the leeward end or leeward side of the airflow passage 17, so that the airflow direction adjustment blades 25 (first airflow direction adjustment blade 25a and second airflow direction adjustment blade 25b) can be arranged at a position where the leeward end of the blade main body 27 does not enter the inside of the air outlet 21 at any swing angle and where wind does not collide with the edges 21a, 21b of the air outlet 21 when swinging. Therefore, the airflow direction adjustment function can be improved while maintaining the appearance.

[0042] Furthermore, compared to a configuration in which the swing angle of the airflow direction adjustment blade 25 is controlled by multiple links or the like, it is possible to improve airflow direction performance while maintaining the appearance without increasing the number of parts, i.e., without increasing costs.

[0043] Furthermore, when the angle of each airflow direction adjustment blade 25 (first airflow direction adjustment blade 25a and second airflow direction adjustment blade 25b) is not changed (neutral air distribution position), each airflow direction adjustment blade 25 is not exposed from the air outlet 21, thereby ensuring the appearance, and when the angle is changed, part of the blade main body 27 is exposed inside the air outlet 21, thereby making it possible to adjust the air direction more effectively.

[0044] Furthermore, by locating another wind direction adjustment blade 41 linked to the paired wind direction adjustment blade 25 in the center of the air passage 17, the wind direction can be adjusted by the paired wind direction adjustment blade 25 and the other wind direction adjustment blade 41, and when the paired wind direction adjustment blades 25 are swung, the distance between one of the wind direction adjustment blades 25 and the other wind direction adjustment blade 41 narrows, thereby reducing the amount of wind blowing between the wind direction adjustment blade 25 and the other wind direction adjustment blade 41, thereby further improving the wind direction performance.

[0045] Furthermore, only one other airflow direction adjustment blade 41 is exposed at the air outlet 21, and the paired airflow direction adjustment blade 25 is hidden behind the panel 15, thereby forming an airflow direction adjustment device 10 with a neat appearance. [Industrial Applicability]

[0046] 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]

[0047] 10 Wind direction adjustment device 14 cases 15 Panel 16 side wall 17 Ventilation Channel 21 Air outlet, which is an opening 21a,21b Edge 25 Wind direction adjustment blade 27 Blade body 29 Shaft 41 Other wind direction control blades

Claims

1. A case including a side wall and an air passage surrounded by the side wall and guiding air in a predetermined ventilation direction; A panel provided on a leeward end side of the air passage, the panel having an opening communicating with the air passage and through which air blows out; a pair of airflow direction adjustment vanes arranged in the air passage on opposite sides of a center of the air passage in a direction intersecting the airflow direction and movably supported on the case such that an angle of the vane with respect to the airflow direction can be changed; Each of the airflow direction adjustment blades is A plate-shaped blade main body; a protrusion protruding from the blade body to a rear side of a center portion of the air passage; and a shaft portion supported by the case side, the shaft portion is formed on the protruding portion and is located on the leeward end side of the rear side of the central portion of the air passage with respect to the blade main body portion, and on the leeward end or on the leeward side of the air passage, and is located on the outer side with respect to the projection of the opening in the air passage direction, The airflow direction adjustment blades are disposed on the rear side of the panel, and when the angle is changed, at least a part of the blade body of the airflow direction adjustment blade that rotates toward the center of the air passage is exposed in the opening, and the leeward end approaches the leeward side relative to the edge of the opening, and the leeward end of the blade body of the airflow direction adjustment blade that rotates opposite the center of the air passage moves away from the windward side relative to the edge of the opening. A wind direction adjustment device characterized by the above.

2. Further provided is another airflow direction adjustment blade which is arranged in the center of the air passage and is linked with the paired airflow direction adjustment blade.

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

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