Wind direction adjustment device

Abstract

To provide a wind direction adjustment device that is superior in wind distribution performance with a reduced influence of an operation unit.SOLUTION: A wind direction adjustment device comprises a case body which has a ventilation passage defined inside, and a fin 16 which is provided rotatably in the ventilation passage in the case body, and rotates to adjust a wind direction. The case body has an inclined part which is inclined downstream to a head wind axis side at a downstream end of the ventilation passage. The fin 16 has a first fin 20, a second fin 21 which is located closely upstream from the first fin 20 in the ventilation passage, and inclined to the inclination direction of the first fin 20 in conjunction with rotation of the first fini 20, and an operation unit 47 which is provided movably at the first fin 20 in a predetermined range A. The second fin 21 partially overlaps with the operation unit 47 in a ventilation direction, and comprises an opening part 35 within the predetermined range A.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a wind direction adjusting device provided with fins that adjust the wind direction according to rotation.

Background Art

[0002] Conventionally, in an air conditioning device used in a vehicle such as an automobile, there is a wind direction adjusting device that adjusts the blowing wind direction. The wind direction adjusting device is also called an air conditioning wind blowing device, an air outlet, a ventilator, a register, etc., and is installed in each part of the vehicle such as an instrument panel or a center console part, and contributes to improving the comfort performance by air conditioning.

[0003] In such a wind direction adjusting device, in recent years, the number of thin types with a narrow width of the air outlet has been increasing. In this configuration, an inclined portion is formed at the downstream end of the ventilation passage connected to the air outlet, and one fin is arranged at the air outlet, and an operation knob for rotation operation is arranged on this fin, and the wind direction can be adjusted by the rotation of the fin and the inclination of the inclined portion (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the case of the above configuration, since the wind direction is adjusted depending only on the inclination of one fin and the inclined portion, a difference in air distribution is likely to occur between the position of the operation knob arranged on the fin where the air conditioning wind flows and the position where the air conditioning wind flows along the fin at other positions. Therefore, it is required to suppress the influence on the delicate adjustment of the wind direction caused by the difference in air distribution between them.

[0006] This invention has been made in view of these points, and aims to provide a wind direction adjustment device that suppresses the influence of the operating unit and has excellent wind distribution performance. [Means for solving the problem]

[0007] The wind direction adjustment device according to claim 1 comprises a case body that partitions an air passage inside, and fins that are rotatably arranged in the air passage within the case body and adjust the wind direction according to the rotation, wherein the case body has an inclined portion at the downstream end of the air passage that is inclined toward the wind axis toward the downstream side, and the fins consist of a first fin and a first fin opposite to the first fin Connected A second fin is located close to the upstream side of the aforementioned ventilation passage and is inclined in conjunction with the rotation of the first fin with respect to the inclination direction of the first fin, Separate from the first fin, and attached to the first fin It has an operating section, and the second fin is 、 Equipped with an opening The operating section is provided with a main surface that serves as an air guide surface at a position protruding in the thickness direction of the first fin, and is movable along the first fin within a range set by the width of the opening, with a portion of this main surface overlapping the second fin in the ventilation direction so that a portion of it overlaps the opening in the thickness direction. It is.

[0008] The wind direction adjustment device according to claim 2 is the wind direction adjustment device according to claim 1, wherein the second fin rotates in the opposite direction to the first fin in conjunction with the rotation of the first fin, thereby tilting with respect to the inclination direction of the first fin.

[0009] The wind direction adjustment device according to claim 3 is the wind direction adjustment device according to claim 1 or 2, wherein the second fin is interrupted at the position of the opening.

[0010] The wind direction adjustment device according to claim 4 is the wind direction adjustment device according to claim 1 or 2, wherein the second fin has a connecting portion that connects both sides of the opening. [Effects of the Invention]

[0011] According to the wind direction adjustment device described in claim 1, the inclined portion at the downstream end of the air passage and the closely positioned first and second fins suppress the influence of the wind direction on the operating unit and improve the vertical air distribution performance.

[0012] According to the wind direction adjustment device of claim 2, in addition to the effects of the wind direction adjustment device of claim 1, the fins can be configured simply.

[0013] According to the wind direction adjustment device of claim 3, in addition to the effects of the wind direction adjustment device of claim 1 or 2, the airflow angle near the operating part, which is partially located in the opening, is no different from that of a conventional structure without a second fin, and the airflow performance at most positions excluding the operating part is improved by the second fin, so the angle difference between the airflow angle by the operating part and the airflow angle by the first fin at positions other than the operating part can be suppressed.

[0014] According to the wind direction adjustment device of claim 4, in addition to the effects of the wind direction adjustment device of claim 1 or 2, the second fin is supported at both ends, so it can rotate more stably. [Brief explanation of the drawing]

[0015] [Figure 1] (a) is a partial perspective view of the neutral position showing a wind direction adjustment device according to the first embodiment of the present invention, and (b) is a partial perspective view of the upward swing position showing the same wind direction adjustment device. [Figure 2] (a) is a cross-sectional view of the wind direction adjustment device shown above in the neutral position, excluding some of the operating parts, and (b) is a cross-sectional view of the wind direction adjustment device shown above in the upward swing position, excluding some of the operating parts. [Figure 3] (a) is a cross-sectional view of the wind direction adjustment device shown above at the neutral position of some of the operating parts, and (b) is a cross-sectional view of the wind direction adjustment device shown above at the upper swing position of some of the operating parts. [Figure 4] This is a perspective view showing a part of the first fin of the wind direction adjustment device shown above. [Figure 5] A perspective view showing a portion of the second fin of the wind direction adjustment device shown above. [Figure 6] This is an exploded perspective view showing the same wind direction adjustment device. [Figure 7] This is a perspective view showing the wind direction adjustment device shown above. [Figure 8](a) is an explanatory diagram showing an example of the air flow at the upward swing position at the position corresponding to I-I in FIG. 7, (b) is an explanatory diagram showing an example of the air flow at the upward swing position at the position corresponding to II-II in FIG. 7, and (c) is an explanatory diagram showing an example of the air flow at the upward swing position at the position corresponding to III-III in FIG. 7. [Figure 9] It is a partial perspective view of the upward swing position showing the wind direction adjusting device according to the second embodiment of the present invention. [Figure 10] It is a partial perspective view of the upward swing position showing the wind direction adjusting device according to the second embodiment of the present invention.

Embodiments for Carrying Out the Invention

[0016] Hereinafter, the first embodiment of the present invention will be described with reference to the drawings.

[0017] In FIGS. 6 and 7, reference numeral 1 denotes a wind direction adjusting device. The wind direction adjusting device 1, which is also called an air outlet, a ventilator, a register, etc., adjusts the blowing direction of the wind from an air conditioner or the like. Hereinafter, for the sake of clarity, the wind direction adjusting device 1 is defined such that the leeward side, which is the side from which the wind blows, is the front side, the front side or the near side, and the opposite side, that is, the windward side, which is the side that receives the wind, is the rear side, the back side or the far side, and the lateral direction or the width direction, which is the left-right direction when viewed from the front side, and the vertical direction. In the present embodiment, the wind direction adjusting device 1 is applied to an air conditioner for a vehicle such as an automobile. The wind direction adjusting device 1 may be arranged at an arbitrary position, but in the drawings, it is assumed 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 shown merely as an example and are to be appropriately changed according to the installation position and the installation orientation of the wind direction adjusting device 1.

[0018] The airflow adjustment device 1 comprises a case body 3. The case body 3 is formed in a cylindrical shape with side walls 4. In this embodiment, the side walls 4 are formed in a cylindrical shape in the front-rear direction. In the illustrated example, the side walls 4 are formed in a rectangular cylindrical shape. The ventilation passage 5 is enclosed inside by the side walls 4. The direction parallel to the central axis of the side walls 4 is the ventilation direction of the ventilation passage 5. In this embodiment, the ventilation direction of the ventilation passage 5 is in the front-rear direction, and air is ventilated from rear to front. That is, in the ventilation passage 5, the rear side is the upstream side in the ventilation direction, and the front side is the downstream side in the ventilation direction.

[0019] The side wall 4 has a predetermined length in the ventilation direction of the ventilation passage 5. In this embodiment, the side wall 4 is flattened in the vertical direction and elongated in the horizontal direction, i.e., horizontally elongated. Therefore, the air direction adjustment device 1 is formed in a horizontal, thin shape. The side wall 4 integrally has a pair of side wall sections 6 that face each other across the central part of the ventilation passage 5, i.e., the central axis of the side wall 4 or the case body 3, and a pair of end wall sections 7 that connect these pairs of side wall sections 6. The pair of side wall sections 6 face each other in the horizontal direction, and the pair of end wall sections 7 face each other in the vertical direction. The rear end, which is one end of the pair of side wall sections 6,6 and the pair of end wall sections 7,7, surrounds the inlet 8 that receives air into the ventilation passage 5, and the front end, which is the other end of the pair of side wall sections 6,6 and the pair of end wall sections 7,7, surrounds the outlet 9 that blows air out of the ventilation passage 5. In other words, the rear end of the case body 3 is an inlet 8 that receives air into the ventilation passage 5, and the front end of the case body 3 is an outlet 9 that blows air out of the ventilation passage 5. The ventilation passage 5 is formed between the inlet 8 and the outlet 9, connecting them. The outlet 9 has a horizontally elongated shape, being narrow vertically and wide horizontally. The upper and lower opening edges of the outlet 9 may be inclined to widen towards the downstream side.

[0020] The end wall sections 7,7 have an inclined section 11 at the front end connected to the outlet 9, that is, at the downstream end of the ventilation passage 5. The inclined section 11 gradually slopes toward the downstream side, toward the air axis side, that is, toward the central axis side of the case body 3.

[0021] The case body 3 may be formed integrally or by combining multiple members. In this embodiment, the case body 3 comprises a case body main body portion 13 and a finisher 14, which is a decorative portion attached to the front end of the case body main body portion 13, with an inlet 8 formed in the case body main body portion 13 and an outlet 9 formed in the finisher 14.

[0022] The case body 3 has fins 16 arranged on it. The fins 16 are also called louvers. The fins 16 rotate to adjust the direction of the conditioned air that passes through the ventilation passage 5 and is blown out from the outlet 9.

[0023] The fin 16 comprises a first fin 20 and a second fin 21. Preferably, the fin 16 further comprises a third fin 22. As shown in Figures 1(a) and 1(b), Figures 2(a) and 2(b), and Figures 3(a) and 3(b), the second fin 21 is configured to tilt in a direction intersecting the tilt direction of the first fin 20 in conjunction with the rotation of the first fin 20. In the illustrated example, the first fin 20 and the second fin 21 are each rotatable in the vertical direction and are connected to rotate in opposite directions in conjunction with each other. That is, when the first fin 20 rotates upward, the second fin 21 rotates downward, and when the first fin 20 rotates downward, the second fin rotates upward. The third fin 22 is rotatable in a direction intersecting or perpendicular to the rotation direction of the first fin 20 and the second fin 21, in this embodiment, in the left-right direction.

[0024] The first fin 20 shown in Figures 4 and 6 is located at the furthest downstream, or frontmost, end of the fin 16. The first fin 20 is positioned facing the outlet 9. In other words, the first fin 20 is located at the downstream end of the air passage 5. The entire first fin 20 may be located inside the air passage 5 within the case body 3, or a portion of it may protrude from the outlet 9 to the outside of the case body 3.

[0025] The first fin 20 is formed in a plate shape. The first fin 20 has two planar main surfaces 20a that serve as guide surfaces for guiding the wind. The first fin 20 is formed in a longitudinal shape. The first fin 20 is a transverse fin arranged with its longitudinal direction aligned with the left-right direction, and its main surfaces 20a are located vertically. The front end of the first fin 20 is located at a position where it intersects with the virtual extension line (virtual extension surface) of the inclined portions 11, 11 of the case body 3. The first fin 20 has rotating portions 24 at both ends in the longitudinal direction. The rotating portions 24 are rotatably supported by the rotating receiving portions 25 on the case body 3 side. One of the rotating portion 24 and the rotating receiving portion 25 is a shaft portion, and the other is a bearing portion. In this embodiment, the rotating portion 24 is a shaft portion protruding from the first fin 20 and is rotatably inserted and held in the rotating receiving portion 25, which is a round hole portion.

[0026] Preferably, the pivoting part 24 is positioned so that its axis passes through the center of gravity of the first fin 20. In this embodiment, the pivoting part 24 is located near the center of the first fin 20 in the short direction.

[0027] The rotating support portion 25 may be formed on the side wall portion 6 of the case body 3, but in this embodiment, it is formed on the bearing member 27. The bearing member 27 is also called a spacer. The bearing member 27 is positioned inside the case body 3, i.e., within the ventilation passage 5, in close proximity to the side wall portion 6 and facing the side wall portion 6, and is designed to hold the rotating portion 24 at a position away from the side wall portion 6.

[0028] Furthermore, the first fin 20 has fin connecting portions 30 at both ends in the longitudinal direction, which are connected to the second fin 21. The fin connecting portions 30 are located upstream of the ventilation passage 5 relative to the rotating portion 24. In the illustrated example, the fin connecting portion 30 is formed on an extension portion 31 that extends further rearward from the trailing edge of the first fin 20. The extension portion 31 is rotatably connected to a connecting receiving portion 32 formed on the second fin 21.

[0029] The second fin 21, shown in Figures 5 and 6, is located upstream of the first fin 20. The second fin 21 is positioned upstream of the outlet 9, close to the first fin 20. The second fin 21 is positioned so that its leading edge does not come into contact with the trailing edge of the first fin 20, or have a small gap that does not affect the airflow. The entire second fin 21 is located inside the vent 5 within the case body 3.

[0030] The second fin 21 is formed in a plate shape. The planar main surfaces 21a of the second fin 21 serve as guide surfaces that guide the wind. The second fin 21 is formed in a longitudinal shape. The second fin 21 is positioned parallel or approximately parallel to the first fin 20. That is, the second fin 21 is a transverse fin arranged with its longitudinal direction aligned along the left-right direction, and its main surfaces 21a are located above and below it. The second fin 21 is positioned such that, at its maximum vertical rotation position, the upper and lower inclined portions 11, 11 of the case body 3 are located on a virtual extension line (virtual extension surface) of the main surface 21a. In this embodiment, the second fin 21 is divided into a plurality of fin pieces 34. For example, two fin pieces 34 are provided. The fin pieces 34 are positioned apart from each other on the left and right sides. The lengths of the fin pieces 34 in the left-right direction are set to be approximately equal. The space between the fin pieces 34, 34 is an opening 35.

[0031] A connecting receiving portion 32 is formed at the end of each fin piece 34 opposite to the respective opening 35. In the illustrated example, a connecting receiving portion 32 is formed at the right end of the right fin piece 34 and at the left end of the left fin piece 34. One of the connecting receiving portion 32 and the fin connecting portion 30 is a shaft portion, and the other is a bearing portion. In this embodiment, the fin connecting portion 30 is a round hole portion having an axis parallel or substantially parallel to the axis of the rotating portion 24, and the connecting receiving portion 32 is a shaft portion that is rotatably inserted and held in the fin connecting portion 30. The connecting receiving portion 32 is located near the front of the second fin 21 (fin piece 34), preferably near the front edge, and protrudes from the longitudinal end of the fin piece 34.

[0032] Furthermore, the second fin 21 has a pivot portion 37 at its longitudinal end. The pivot portion 37 is rotatably and movably (slidably) supported by a receiving portion 38 on the case body 3 side. Either the pivot portion 37 or the receiving portion 38 is a shaft portion, and the other is a bearing portion. In this embodiment, the pivot portion 37 is a sliding shaft portion protruding from the second fin 21 (fin piece 34), and is a sliding shaft hole that is rotatably and movably inserted and held in the receiving portion 38, which is an elongated hole portion.

[0033] Preferably, the pivot portion 37 is positioned so that its axis passes through the center of gravity of the second fin 21 (fin piece 34). In this embodiment, the pivot portion 37 is located near the center of the second fin 21 (fin piece 34) in the short direction. The pivot portion 37 is located away from the connecting receiver 32, on the upstream, rear side. In the illustrated example, the pivot portion 37 is located at only one end of each fin piece 34. In other words, in this embodiment, the fin piece 34 is cantilevered.

[0034] The receiving portion 38 is formed in the shape of an elongated hole along the front-rear direction. The receiving portion 38 may be formed on the side wall portion 6 of the case body 3, but in this embodiment, it is formed on the bearing member 27.

[0035] The third fin 22 shown in Figure 6 is located upstream of the second fin 21. The third fin 22 is located slightly behind the trailing edge of the second fin 21 (fin piece 34). Multiple third fins 22 are provided and are able to rotate in the same direction in conjunction with each other. The third fin 22 is formed in a plate shape. The two planar main surfaces 22a of the third fin 22 serve as guide surfaces that guide the wind. The third fin 22 is a vertical fin with main surfaces 22a located on the left and right sides. The third fin 22 has a rotating part 40 at its end. The third fin 22 has rotating parts 40 at both the upper and lower ends. The rotating parts 40 are rotatably supported by the rotating receiving parts 41 on the case body 3 side. One of the rotating part 40 is the shaft part and the other is the bearing part. In this embodiment, the rotating portion 40 is a shaft portion protruding from the third fin 22 and is rotatably inserted and held in the rotating receiving portion 41, which is a round hole portion.

[0036] In this embodiment, the rotation support portion 41 is formed on the end wall portion 7 of the case body 3, but it may also be formed on other members.

[0037] Furthermore, the third fin 22 has a link portion 43 located at a position away from the rotating portion 40. The link portion 43 is located away from the rotating portion 40 on the upstream side of the ventilation passage 5. The link portions 43 of each third fin 22 are connected by a link receiving portion 45 formed on a link 44, so that the rotation of multiple third fins 22 is linked in the same direction.

[0038] The link portion 43 and the link receiving portion 45 are such that one is a shaft portion and the other is a bearing portion. In this embodiment, the link portion 43 is a shaft portion protruding from the third fin 22 and is rotatably inserted and held in the link receiving portion 45, which is a hole portion. The link portion 43 is formed in an axial shape parallel or substantially parallel to the rotating portion 40.

[0039] The movement of the fin 16 is controlled by the operating part 47. The operating part 47 is a knob, also called an operating knob. The operating part 47 is attached to the first fin 20 and is exposed from the outlet 9 (Figure 7). By moving the operating part 47 up and down together with the first fin 20 within the vertical width of the outlet 9 (Figure 7), the first fin 20 and the second fin 21, which is connected to the first fin 20, rotate in the vertical direction in conjunction.

[0040] The operating section 47 is formed in a plate shape. The two planar main surfaces 47a of the operating section 47 serve as guide surfaces that guide the airflow. The first fin 20 is inserted through the operating section 47 in the left-right direction. Therefore, as shown in Figures 3(a) and 3(b), the two main surfaces 47a of the operating section 47 are positioned to protrude in the thickness direction of the first fin 20 relative to the two main surfaces 20a of the first fin 20. In addition, the two main surfaces 47a of the operating section 47 extend in the front-rear direction, that is, in a direction that intersects or is perpendicular to the longitudinal direction of the first fin 20. The rear ends of the two main surfaces 47a of the operating section 47 extend further back than the rear ends of the first fin 20. Therefore, the area near the rear ends of the two main surfaces 47a of the operating section 47 overlaps with the front ends of the two main surfaces 21a of the second fin 21 in the ventilation direction, i.e., the front-rear direction.

[0041] Furthermore, the operating unit 47 is positioned to be movable along the first fin 20, and the third fin 22 can be operated by moving the operating unit 47 along the first fin 20. A rotating coupling unit 50 is connected to the operating unit 47, which is connected to the third fin 22. The rotating coupling unit 50 is located at the rear of the operating unit 47. By connecting the rotating coupling unit 50 to a rotating receiving unit 51 on the third fin 22 side, the movement of the operating unit 47 relative to the first fin 20 is transmitted to the third fin 22.

[0042] The rotating connecting portion 50 and the rotating receiving portion 51 can be formed arbitrarily as long as they are configured to link the movement of the operating portion 47 to the rotation of the third fin 22. In this embodiment, the rotating connecting portion 50 is a fork-shaped projection, and the rotating receiving portion 51 is a shaft portion sandwiched from both sides by the rotating connecting portion 50. The rotating connecting portion 50 is connected to the operating portion 47 so as to be rotatable in the vertical direction.

[0043] As shown in Figures 1(a) and 1(b), the operating unit 47 is movable within a predetermined range A in the left-right direction relative to the first fin 20. The operating unit 47 is movable in the left-right direction within the opening 35 of the second fin 21, that is, in this embodiment, within the range between the fin pieces 34, 34. In other words, the opening 35 acts as a setting unit that avoids interference between the second fin 21 and the operating unit 47 and sets the predetermined range A in which the operating unit 47 can move. In this embodiment, the predetermined range A includes the central part of the first fin 20 in the left-right direction.

[0044] The airflow adjustment device 1 is positioned with its inlet 8 connected to the air conditioning unit. The conditioned air from the air conditioning unit passes through the inlet 8, through the ventilation passage 5, is distributed by the fins 16, and is blown out from the outlet 9.

[0045] The airflow adjustment device 1 of this embodiment allows for the blowing of conditioned air in any direction by combining the vertical airflow distribution by the first fin 20 and the second fin 21 of the fin 16 and the horizontal airflow distribution by the third fin 22.

[0046] First, regarding the lateral airflow, when a user such as an occupant grasps the control unit 47 and moves it left or right along the first fin 20, the front end of the third fin 22, which is connected to the control unit 47 by the pivoting coupling unit 50 and the pivoting receiving unit 51, rotates around the pivoting unit 40 in the direction of movement of the control unit 47. Other third fins 22, which are connected to that third fin 22 via the link 44, also rotate in conjunction around the pivoting unit 40 in the same direction. As a result, multiple third fins 22 rotate in conjunction in the left and right directions while remaining approximately parallel to each other, and the conditioned air is straightened in the left and right direction along the main surface 22a of the third fin 22 and blown out from the outlet 9 in the left and right directions.

[0047] Furthermore, for vertical airflow distribution, the user, such as a crew member, grasps the control unit 47 and rotates the control unit 47 up and down in conjunction with the first fin 20, causing the first fin 20 and the second fin 21 to rotate up and down. The conditioned air is then straightened in the vertical direction along the main surface 20a of the first fin 20 and the main surface 21a of the second fin 21, and blown out vertically from the outlet 9.

[0048] Specifically, as shown in Figures 1(a), 2(a), and 3(a), when the operating unit 47 is in the neutral position, the main surface 20a of the first fin 20 and the upper and lower main surfaces 21a of the second fin 21 are located substantially on the same plane along the wind axis, that is, along the front-rear direction, and the upper and lower main surfaces 47a of the operating unit 47 are located parallel or substantially parallel to the main surface 20a of the first fin 20 and the main surface 21a of the second fin 21. Therefore, the airflow W near the center in the vertical direction within the ventilation passage 5 travels straight towards the outlet 9 along the main surface 21a of the second fin 21 and the upper and lower main surfaces 20a of the first fin 20 in the area where the operating unit 47 is not located, as shown in Figure 2(a). In the area where the operating unit 47 is located, as shown in Figure 3(a), the airflow travels straight towards the outlet 9 along the upper and lower main surfaces 21a of the second fin 21 and the upper and lower main surfaces 47a of the operating unit 47, and is blown out from the outlet 9 in the axial direction of the case body 3, that is, in the ventilation direction of the ventilation passage 5. In addition, the airflow W passing through the upper and lower parts of the ventilation passage 5, that is, near the end wall sections 7,7, is inclined by the inclined section 11, and then strikes the upper and lower main surfaces 20a of the first fin 20, and is blown out from the outlet 9 in the forward direction along these main surfaces 20a.

[0049] Furthermore, Figures 1(b), 2(b), and 3(b) show examples of when the operating part 47 is rotated upward. When the operating part 47 is rotated downward, the only difference is that it operates in the opposite direction, so no explanation is given. When the operating part 47 is rotated upward from the neutral position, the front end of the first fin 20 rotates upward around the rotating part 24 along with the operating part 47. As a result, the fin connecting part 30, which is located behind the rotating part 24 on the first fin 20, moves downward, causing the second fin 21 (fin piece 34), which is connected to the fin connecting part 30 via the connecting receiving part 32, to rotate so that its front end moves downward around the rotating part 37, which moves forward along the receiving part 38. Therefore, the first fin 20 and the second fin 21 (fin piece 34) rotate in opposite directions vertically, and the main surfaces 20a and 21a form a V shape when viewed from the left and right directions. Furthermore, the upper main surface 47a of the operating section 47 is close to the upper edge of the air outlet 9.

[0050] At this time, at the position of the opening 35 of the second fin 21, that is, the position where the operating unit 47 is located, a portion of the wind W1 that has been traveling straight through the central part of the air passage 5 in the vertical direction passes through the opening 35 and hits the main surface 20a of the first fin 20, moves along the main surface 20a of the first fin 20 in the direction of the inclination of the first fin 20, that is, upward, which is the operating direction of the operating unit 47, and blows out from the outlet 9 upward along the inclination of the lower inclined section 11.

[0051] Furthermore, of the wind that travels straight through the central part of the air passage 5 in the vertical direction, the wind W2 that travels straight through the opening 35 without hitting the first fin 20 has a small airflow to begin with. In addition, the airflow W3 that hits the lower main surface 21a of the second fin 21 at positions other than the opening 35, then hits the lower main surface 20a and the lower inclined portion 11 of the first fin 20 and blows out upward from the outlet 9 has an overwhelmingly large airflow (Figures 8(a) and 8(c), the whiter the color in the figures, the larger the airflow (pressure)). Moreover, even if there is a small amount of wind W2 traveling straight, a portion of the larger airflow W3 flows into the opening 35, so its effect on wind direction adjustment is extremely small.

[0052] Furthermore, at the location where the operating section 47 is situated, the gap between the upper main surface 47a of the operating section 47 and the upper edge of the air outlet 9 narrows on the side of the swing direction of the first fin 20 in the ventilation passage 5, in this case, the upper part, resulting in almost no airflow (Figure 3(b)). Even below the operating section 47, where the airflow is high, the lower main surface 47a of the operating section 47 faces the lower inclined section 11 and extends to the vicinity of the air outlet 9, making it difficult for airflow with differences in air direction to occur (Figure 8(b), the whiter the figure, the greater the airflow (pressure)).

[0053] As described above, according to this embodiment, a first fin 20 and a second fin 21 are arranged in a case body 3 having an inclined portion 11 that is inclined toward the downstream side and toward the wind axis side at the downstream end of the ventilation passage 5, and the second fin 21 is arranged in close proximity to the upstream side of the ventilation passage 5 relative to the first fin 20 and is inclined in a direction intersecting the inclination direction of the first fin 20 in conjunction with the rotation of the first fin 20. Furthermore, an operating unit 47 is movably positioned on the first fin 20 within a predetermined range A, and a part of the second fin 21 is overlapped with the operating unit 47 in the ventilation direction, and an opening 35 is formed in the predetermined range A of the second fin 21. Thus, the inclined portion 11 at the downstream end of the ventilation passage 5 and the closely positioned first fin 20 and second fin 21 suppress the influence of the wind direction by the operating unit 47 and improve the vertical air distribution performance.

[0054] Therefore, even with a thin wind direction adjustment device 1 in which only one first fin 20 is positioned in an outlet 9 with a small vertical width, fine adjustment of the wind direction becomes possible.

[0055] Furthermore, since the second fin 21 rotates in the opposite direction to the first fin 20 in conjunction with the rotation of the first fin 20, and is configured to tilt in a direction intersecting the tilt direction of the first fin 20, the fins 16 can be easily constructed by, for example, rotatably connecting the first fin 20 and the second fin 21 and making the rotating part 37 of the second fin 21 slidable in the front-rear direction in conjunction with the rotation of the second fin 21, thus simplifying the construction of the fins 16.

[0056] Furthermore, since the second fin 21 is intermittently connected to multiple fin pieces 34 at the position of the opening 35, the airflow angle near the operating section 47, which is partially located in the opening 35, is no different from that of a conventional structure without the second fin 21. As a result, the airflow performance at most positions excluding the operating section 47 is improved by the fin pieces 34 of the second fin 21, thus suppressing the angle difference between the airflow angle provided by the operating section 47 and the airflow angle provided by the first fin 20 at positions other than the operating section 47.

[0057] Furthermore, by setting the opening 35 in the center in the left-right direction, the air distributed by the second fins 21 at both the left and right sides of the opening 35 can be evenly distributed into the opening 35, thereby suppressing uneven distribution of air.

[0058] Furthermore, since the conventional structure of the rotating connecting part 50 and rotating receiving part 51 can be used as is for the connection structure between the operating part 47 and the third fin 22, it is possible to improve wind direction performance with a simple configuration.

[0059] Furthermore, since the first fin 20 and the second fin 21 rotate in conjunction with each other and do not move significantly in the direction of ventilation within the ventilation passage 5, a large space is not required for the movement of the first fin 20 and the second fin 21, and the case body 3 does not become larger.

[0060] Furthermore, the opening 35 of the second fin 21 may be formed by hollowing out a part of the second fin 21, as shown in the second embodiment in Figure 9. In this case, the second fin 21 is formed as a single piece with a connecting portion 55 that connects both sides of the opening 35, and is not divided into multiple fin pieces 34. The connecting portion 55 is located at the rear end of the second fin 21. Even when the opening 35 is formed in this way, it is possible to provide a wind direction adjustment device 1 with excellent air distribution performance by suppressing the influence of the operating portion 47, and the same effects as the first embodiment can be achieved. In addition, the second fin 21 is supported by the case body 3 side at both ends of the longitudinal direction by the rotating portions 37 (double-supported), allowing for more stable rotation.

[0061] Furthermore, the opening 35 is not limited to dividing the second fin 21 into fin pieces 34, 34, but may also be positioned biased towards one end in the longitudinal direction of the second fin 21, as in the third embodiment shown in Figure 10. In this case, the second fin 21 is formed as a single piece without having multiple fin pieces 34.

[0062] Furthermore, although the wind direction adjustment device 1 is horizontal in each of the above embodiments, it can be similarly configured as a vertical type, where the longitudinal direction of the fins 16 is vertical.

[0063] Furthermore, the wind direction adjustment device 1 is not limited to those for automobiles, but may be used for any other purpose. [Industrial applicability]

[0064] The present invention can be suitably used, for example, as an airflow direction adjustment device for the air conditioning system of an automobile. [Explanation of symbols]

[0065] 1 Wind direction adjustment device 3 Case Body 5. Ventilation channel 11 Slope 16 fins 20 First Fin 21 Second Fin 35 Opening 47 Operation section 47a Main surface 55 connections Department

Claims

1. A case body that partitions the ventilation passage inside, This case body includes fins that are rotatably positioned in the aforementioned ventilation passage and adjust the airflow direction according to the rotation, The case body has an inclined portion at the downstream end of the ventilation passage that slopes toward the downstream side and toward the wind axis side, The aforementioned fin is, First fin and, A second fin is connected to this first fin and positioned close to the upstream side of the ventilation passage, and is inclined in conjunction with the rotation of the first fin with respect to the inclination direction of the first fin, It has an operating part that is separate from the first fin and attached to the first fin, The second fin has an opening, The operating section is provided with a main surface that serves as an air guide surface at a position protruding in the thickness direction of the first fin, and is movable along the first fin within a range determined by the width of the opening, with a portion of this main surface overlapping the second fin in the ventilation direction such that a portion of it overlaps the opening in the thickness direction. A wind direction adjustment device characterized by the following features.

2. The second fin rotates in the opposite direction to the first fin in conjunction with the rotation of the first fin, thereby tilting relative to the inclination direction of the first fin. The wind direction adjustment device according to claim 1, characterized in that it is a wind direction adjustment device.

3. The second fin is discontinuous at the opening. The wind direction adjustment device according to claim 1 or 2, characterized in that it is a wind direction adjustment device.

4. The second fin has connecting parts that connect both sides of the opening. The wind direction adjustment device according to claim 1 or 2, characterized in that it is a wind direction adjustment device.

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