JP2022150682A - Wind direction adjustment device - Google Patents

Abstract

To provide a wind direction adjustment device capable of suppressing a reduction in blowing efficiency with a simple structure.SOLUTION: A wind direction adjustment device 1 comprises: a cylindrical case body 10; a plate-like intermediate fin 13 having two main planes roughly perpendicular to each other in a second direction roughly perpendicular to a first direction within the section of an internal flow path 10k and becoming a front and a rear, and fixed in the internal flow path 10k; plate-like first and second front fins 11a and 12a arranged closer to an exist side than the intermediate fin 13 in the internal flow path 10k; and plate-like first and second rear fins 14a and 15a arranged closer to an entrance side than the intermediate fin 13 in the internal flow path 10k. The front and rear fins are rotated reversely to each other about each rotational axis parallel to the first direction to be displaced between a first limit position where the distribution path of a gas is one second main plane 13e side of the intermediate fin 13 and a second limit position where the distribution path is the other first main plane 13d side of the intermediate fin 13.SELECTED DRAWING: Figure 10B

Description

The present disclosure relates to wind direction adjusting devices.

2. Description of the Related Art Conventionally, there is a wind direction adjusting device that is installed in a vehicle such as an automobile and adjusts the direction of air that is supplied from an air conditioner of the vehicle to the interior of the vehicle. Patent Literature 1 discloses a register (wind direction adjusting device) provided with an inner plate inside a retainer (case body) that is vertically moved or rotationally displaced to change the air circulation path.

JP 2007-196942 A

In the register described in Patent Literature 1, the inner plate is a rectangular parallelepiped having a large thickness in the vertical direction and tapered at both the upstream and downstream ends. Therefore, for example, even if the inner plate is maintained in a neutral position so that the wind direction is straight, the pressure loss caused by the shape of the inner plate may reduce the efficiency of the blowing air, resulting in a decrease in the straightness of the blowing air. There is

Therefore, an object of the present disclosure is to provide an airflow direction adjusting device that has a simple structure and suppresses a decrease in airflow efficiency.

The wind direction adjusting device according to the present disclosure includes a cylindrical case body having an internal flow path for circulating gas, and a second direction substantially perpendicular to the first direction in the cross section of the internal flow path. and a plate-shaped intermediate fin fixedly arranged in the internal flow channel, and a plate-shaped front fin arranged on the outlet side of the intermediate fin in the internal flow channel. and a plate-shaped rear fin disposed closer to the inlet side than the intermediate fin in the internal flow path, wherein the front fin and the rear fin form a first restriction in which the gas flow path is on one main plane side of the intermediate fin. and a second limit position in which the flow path is on the side of the other main plane of the intermediate fins, rotationally displaced in opposite directions about respective rotation axes parallel to the first direction.

Advantageous Effects of Invention According to the present disclosure, it is possible to provide an airflow direction adjusting device that suppresses a decrease in airflow efficiency with a simple structure.

It is a perspective view showing the appearance of the wind direction adjusting device according to the first embodiment. 1 is an exploded view of a wind direction adjusting device according to a first embodiment; FIG. It is a perspective view which shows the shape of a case body. It is a perspective view which shows the shape of a 1st front fin part. FIG. 5 is a perspective view showing the shape of a second front fin portion; FIG. 4 is a perspective view showing the shape of a first rear fin portion; FIG. 5 is a perspective view showing the shape of a second rear fin portion; It is a perspective view which shows the shape of an intermediate movable fin. 4 is a perspective view showing the shape of a first dial knob; FIG. FIG. 4 is a perspective view showing the shape of a second dial knob; It is a perspective view which shows the shape of a 1st link. It is a perspective view which shows the shape of a 2nd link. It is a side view which shows the state of the 1st link mechanism at the time of a neutral position. FIG. 4 is a cross-sectional view of the wind direction adjusting device at the neutral position; It is a side view which shows the state of the 1st link mechanism at the time of a 1st limit position. FIG. 4 is a cross-sectional view of the wind direction adjusting device at the first limit position; It is a side view which shows the state of the 1st link mechanism at the time of a 2nd limit position. FIG. 11 is a cross-sectional view of the wind direction adjusting device at the second limit position; FIG. 11 is a cross-sectional view of the wind direction adjusting device in the neutral position in the second embodiment; FIG. 11 is a cross-sectional view of the wind direction adjusting device at the first limit position in the second embodiment; FIG. 11 is a cross-sectional view of the airflow direction adjusting device at the second limit position in the second embodiment; FIG. 11 is a cross-sectional view of the wind direction adjusting device at each position in the third embodiment;

Exemplary embodiments are described below with reference to the drawings. Here, elements having substantially the same functions and configurations are given the same reference numerals to omit redundant description, and elements that are not directly related to the present disclosure are omitted from the illustration.

(First embodiment)
FIG. 1 is a perspective view showing the appearance of the wind direction adjusting device 1 according to the first embodiment. FIG. 2 is an exploded view of the wind direction adjusting device 1. FIG. The wind direction adjusting device 1 is installed in a vehicle such as an automobile, and adjusts the direction of the wind supplied from the air conditioner of the vehicle to the interior of the vehicle. For example, the wind direction adjusting device 1 is attached to an opening provided in an instrument panel, a center console, or the like in the vehicle interior of an automobile. In addition, air conditioners that include a similar wind direction adjustment device are sometimes called ventilators and registers.

The wind direction adjusting device 1 includes a case body 10, a first front fin portion 11, a second front fin portion 12, an intermediate fin 13, a first rear fin portion 14, a second rear fin portion 15, and an intermediate movable fin 16. and

FIG. 3 is a perspective view showing the shape of the case body 10. FIG. The case body 10 accommodates the first front fin 11a, the second front fin 12a, the intermediate fin 13, the first rear fin 14a, the second rear fin 15a, and the intermediate movable fin 16 inside. The case body 10 has a tubular shape having an internal flow path 10k for circulating gas. Here, in each drawing below, for convenience of explanation, the directions of X, Y, and Z are defined as follows based on the shape of the case body 10 . The X direction is along the axial direction that defines the tubular shape of the case body 10 and extends from the upstream side to the downstream side of the internal flow path 10k. The Y direction and the Z direction are respectively perpendicular to the X direction and perpendicular to each other. In accordance with this definition, hereinafter, the cross section of the internal flow path 10k refers to the YZ cross section within the internal flow path 10k. In addition, the expressions perpendicular, parallel, central, or symmetrical used in the following description include substantially perpendicular, substantially Parallel, substantially central, or substantially symmetrical may also be included. Similarly, the expression "same shape" or "same posture" may also include substantially the same shape or substantially the same posture.

Further, the case body 10 is formed by combining four plate-shaped wall portions, namely, a first wall portion 10a, a second wall portion 10b, a third wall portion 10c, and a fourth wall portion 10d. The first wall portion 10a and the second wall portion 10b face each other in the Z direction. The third wall portion 10c and the fourth wall portion 10d face each other in the Y direction. One side of the first wall portion 10a is connected to one side of the second wall portion 10b via the third wall portion 10c. The other side of the first wall portion 10a is connected to the other side of the second wall portion 10b via the fourth wall portion 10d. That is, the internal flow path 10k is a spatial region surrounded by the first wall portion 10a, the second wall portion 10b, the third wall portion 10c, and the fourth wall portion 10d. The case body 10 has a rectangular tubular shape in which the cross-sectional shape of the internal flow path 10k is rectangular.

The third wall portion 10c and the fourth wall portion 10d have two first shaft holes 10e and two second shaft holes 10f at positions facing each other in the Y direction. The first shaft hole 10 e supports either the first front fin portion 11 or the second front fin portion 12 . The second shaft hole 10 f supports either the first rear fin portion 14 or the second rear fin portion 15 . On the other hand, the first wall portion 10a and the second wall portion 10b have a plurality of third shaft holes 10i that support the intermediate movable fins 16 at positions facing each other in the Z direction.

Further, the fourth wall portion 10d has a fourth shaft hole 10g that supports the first dial knob 20. As shown in FIG. The second wall portion 10b protrudes outward and has a rotating shaft 10j (see FIG. 9B) that supports the second dial knob 21. As shown in FIG. Furthermore, the fourth wall portion 10d may have a stopper 10h that protrudes outward and defines the rotation range of the first dial knob 20 (see FIG. 10A, etc.).

According to such a shape of the case body 10, the first opening end 10m of the internal flow path 10k is the opening on the side where the finisher 25 is installed, and the second opening end 10n of the internal flow path 10k is the gas introduction port. The second open end 10n is connected to an air conditioner (not shown) installed in the vehicle, and introduces gas supplied from the air conditioner. As in this embodiment, when the vehicle to be applied is a general automobile, the gas is air.

4A is a perspective view showing the shape of the first front fin portion 11. FIG. 4B is a perspective view showing the shape of the second front fin portion 12. FIG. The first front fin portion 11 and the second front fin portion 12 form a pair in the Z direction, and among the various fins installed in the internal flow path 10k, each of the intermediate fins 13 is on the outlet side, that is, the first opening. Includes a front fin located on the 10m side. A specific arrangement of the first front fin portion 11 and the second front fin portion 12 will be described later.

The first front fin portion 11 includes a first front fin 11a, a pair of first rotation shafts 11b, a first front link arm 11c, and a first front engagement shaft 11d.

The first front fin 11a is a plate-like fin having a longitudinal direction in the Y direction as the first direction along the cross section of the internal flow path 10k. The pair of first rotating shafts 11b each have an axial direction in the Y direction, and the vicinity of downstream edge portions 11f protruding toward the first opening end 10m side of the case body 10 at both ends in the Y direction of the first front fins 11a. are installed one by one. One of the first rotating shafts 11b engages with one of the two first shaft holes 10e provided in the third wall portion 10c of the case body 10 . The other first rotating shaft 11b is the first rotating shaft 11b with which the first rotating shaft 11b engages with the third wall portion 10c of the two first shaft holes 10e provided in the fourth wall portion 10d of the case body 10. It engages with the shaft hole 10e at a position opposite to the shaft hole 10e in the Y direction. With such a shape, the first front fin 11a is rotationally displaced on the basis of the first rotating shaft 11b.

The first front link arm 11c is one element that constitutes a first link mechanism 24a (see FIG. 9A etc.) that is connected to one of the first rotating shafts 11b and is operated by the operation of the first dial knob 20 . The extending direction of the first front link arm 11c is along the direction from the downstream edge portion 11f of the first front fin 11a to the upstream edge portion 11e. The first front link arm 11c is attachable to and detachable from the first rotating shaft 11b. In particular, when assembling the wind direction adjusting device 1, after assembling the first front fins 11a inside the case body 10, the worker assembles the first front fins 11a from the outside of the case body 10 with respect to one of the first rotating shafts 11b. A link arm 11c may be attached.

The first front engagement shaft 11d is parallel to the first rotation shaft 11b and provided on the first front link arm 11c. When the first rotating shaft 11b is connected to one end of the first front link arm 11c, the first front engagement shaft 11d protrudes from the opposite side of the other end of the first front link arm 11c. The first front engaging shaft 11d engages with one of two second engaging holes 22e (see FIG. 8A) provided in the first link 22. As shown in FIG.

On the other hand, the second front fin portion 12 has the same configuration and shape as the first front fin portion 11, and includes a second front fin 12a, a pair of second rotating shafts 12b, a second front link arm 12c, and a second front fin 12c. 2 front engagement shafts 12d. The second front fins 12 a correspond to the first front fins 11 a in the first front fin portion 11 . The second rotating shaft 12 b corresponds to the first rotating shaft 11 b in the first front fin portion 11 . The second front link arm 12 c corresponds to the first front link arm 11 c in the first front fin portion 11 . The second front engaging shaft 12 d corresponds to the first front engaging shaft 11 d in the first front fin portion 11 . The second front engaging shaft 12 d engages with the other of the two second engaging holes 22 e provided in the first link 22 .

The intermediate fin 13 is a plate-like fin having two main planes, front and back, which are perpendicular to each other in a second direction perpendicular to the first direction in the cross section of the internal flow path 10k. In this embodiment, the first direction is the Y direction, while the second direction is the Z direction. The longitudinal direction of the intermediate fins 13 is the Y direction, and the plate thickness direction is the Z direction. Further, one of the two principal planes of the intermediate fin 13 is the first principal plane 13d and the other is the second principal plane 13e (see FIG. 9B). Such intermediate fins 13 are fixedly arranged in the internal channel 10k. Further, the intermediate fin 13 has a plurality of support grooves 13a for respectively supporting the plurality of intermediate movable fins 16, as shown in FIG. The support groove 13a is cut out along the X direction from the upstream edge portion 13c (see FIG. 10B etc.) of the intermediate fin 13, and the first rotating shaft 16c (see FIG. 6) provided in the intermediate movable fin 16 is provided. Engage.

5A is a perspective view showing the shape of the first rear fin portion 14. FIG. 5B is a perspective view showing the shape of the second rear fin portion 15. FIG. The first rear fin portion 14 and the second rear fin portion 15 form a pair in the Z direction, and among the various fins installed in the internal flow path 10k, they are closer to the inlet side than the intermediate fin 13, that is, the second opening end 10n side. including a rear fin located in the A specific arrangement of the first rear fin portion 14 and the second rear fin portion 15 will be described later.

The first rear fin portion 14 includes a first rear fin 14a, a pair of third rotating shafts 14b, a first rear link arm 14c, and a first spacer shaft 14d.

The first rear fin 14a, like the first front fin 11a and the intermediate fin 13, is a plate-shaped fin whose longitudinal direction is the Y direction as the first direction. The pair of third rotating shafts 14b are arranged in the vicinity of upstream edge portions 14g projecting toward the second opening end 10n of the case body 10 at both ends of the first rear fins 14a in the Y direction. , are installed one by one. One of the third rotating shafts 14b engages with one of two second shaft holes 10f provided in the third wall portion 10c of the case body 10 . The other third rotating shaft 14b is the second shaft hole 10f with which the third rotating shaft 14b engages with the third wall portion 10c of the two second shaft holes 10f provided in the fourth wall portion 10d of the case body 10. It engages with the shaft hole 10f at a position opposite to the shaft hole 10f in the Y direction. With such a shape, the first rear fin 14a is rotationally displaced with respect to the third rotating shaft 14b.

The first rear link arm 14c is connected to one third rotating shaft 14b and is one element that constitutes the first link mechanism 24a. Also, the first rear link arm 14c has a first rear engaging hole 14e. The first rear engaging hole 14e is an elongated hole provided at one end of the first rear link arm 14c and elongated in the extending direction of the first rear link arm 14c. When the first rear engaging hole 14e is provided at one end of the first rear link arm 14c, a first spacer shaft 14d described below is provided at the other end of the first rear link arm 14c. One of the two first engagement shafts 20f (see FIG. 7A) provided on the first dial knob 20 is engaged with the first rear engagement hole 14e.

Also, the first spacer shaft 14d is provided at one end of the first rear link arm 14c and is an element that secures a space for avoiding interference with other elements in the first link mechanism 24a. The first spacer shaft 14d is attachable and detachable with respect to the third rotating shaft 14b. In particular, when assembling the wind direction adjusting device 1, after assembling the first rear fins 14a inside the case body 10, the worker moves the first spacer shaft from the outside of the case body 10 to the one third rotating shaft 14b. 14d may be attached.

On the other hand, the second rear fin portion 15 has the same configuration as the first rear fin portion 14, and includes a second rear fin 15a, a pair of fourth rotation shafts 15b, a second rear link arm 15c, and a second spacer shaft 15d. include. The second rear fin 15 a corresponds to the first rear fin 14 a in the first rear fin portion 14 . The fourth rotating shaft 15b corresponds to the third rotating shaft 14b in the first rear fin portion 14. As shown in FIG. The second rear link arm 15 c corresponds to the first rear link arm 14 c in the first rear fin portion 14 . The second rear engaging hole 15e provided in the second rear link arm 15c corresponds to the first rear engaging hole 14e provided in the first rear link arm 14c. The second rear engaging hole 15e engages the other of the two first engaging shafts 20f provided on the first dial knob 20. As shown in FIG. The second spacer shaft 15 d corresponds to the first spacer shaft 14 d in the first rear fin portion 14 .

Here, in the first rear fin portion 14 and the second rear fin portion 15, the mounting angles of the first rear link arm 14c and the second rear link arm 15c with respect to the rear fins around the respective rotation axes are different from each other. This difference in mounting angle will be described later together with the description of the first link mechanism 24a using FIG. 9A and the like.

FIG. 6 is a perspective view showing the shape of the intermediate movable fins 16. As shown in FIG. The intermediate movable fin 16 is a fin that crosses the intermediate fin 13 in the second direction and is rotationally displaced around a rotation axis parallel to the second direction. As shown in FIG. 2, a plurality of intermediate movable fins 16 are present along the first direction at regular intervals and in the same posture. In addition, in this embodiment, the intermediate|middle movable fin 16 exists 11 pieces as an example. The multiple intermediate movable fins 16 have the same shape.

The intermediate movable fin 16 has a first fin 16a and a second fin 16b. The first fin 16a and the second fin 16b are plate-like and arranged along the second direction. In addition, the intermediate movable fin 16 has a first rotating shaft 16c, a second rotating shaft 16d, and a third rotating shaft 16e as rotating shafts parallel to the second direction. The first rotating shaft 16c, the second rotating shaft 16d, and the third rotating shaft 16e are on a straight line parallel to the second direction. The first rotating shaft 16c connects the first fin 16a and the second fin 16b. The first rotating shaft 16c engages with the support groove 13a provided in the intermediate fin 13 as described above. In other words, the first fin 16a connected to one side of the first rotating shaft 16c is rotationally displaced within the region facing the first main plane 13d of the intermediate fin 13. As shown in FIG. On the other hand, the second fin 16b connected to the other side of the first rotating shaft 16c is rotationally displaced within the area facing the second main plane 13e of the intermediate fin 13. As shown in FIG. The second rotating shaft 16 d engages with one of the plurality of third shaft holes 10 i provided in the first wall portion 10 a of the case body 10 . The third rotating shaft 16e is a third shaft hole, among a plurality of third shaft holes 10i provided in the second wall portion 10b of the case body 10, with which the second rotating shaft 16d engages in the first wall portion 10a. 10i is engaged in a position opposite to 10i in the Z direction. Here, the third rotating shaft 16e includes a link that shifts the positions of the tip shafts at one end and the other end. The shape of the third rotating shaft 16e will be described later together with the description of the second link mechanism 24b using FIG. 9B and the like.

Also, the first fin 16a and the second fin 16b have a symmetrical shape with respect to the first rotating shaft 16c. In particular, each of the first fin 16a and the second fin 16b may have a curved end 16f in which a part of the end is notched (see FIG. 9B). The curved end 16f provided on the first rear fin 16a is designed so that the downstream edge portion 14f of the first rear fin 14a does not interfere with the first fin 16a when the first rear fin 14a is rotationally displaced. is set based on the rotation orbit of Similarly, the curved end 16f provided on the second fin 16b is designed to prevent the downstream edge 15f of the second rear fin 15a from interfering with the second fin 16b when the second rear fin 15a is rotationally displaced. It is set based on the rotation orbit of the second rear fin 15a.

The material of each element constituting the case body 10, the first front fin 11a, the second front fin 12a, the intermediate fin 13, the first rear fin 14a, the second rear fin 15a, and the intermediate movable fin 16 is, for example, ABS resin or the like. Synthetic resin such as PP resin may be used.

The wind direction adjusting device 1 also includes a first dial knob 20 , a second dial knob 21 , a first link 22 , a second link 23 and a finisher 25 .

7A is a perspective view showing the shape of the first dial knob 20. FIG. The first dial knob 20 is used by the passenger to change the orientation of the first front fin 11a, the second front fin 12a, the first rear fin 14a and the second rear fin 15a from the passenger compartment side. The first dial knob 20 is a disk-shaped member having portions shaped for each action. The first dial knob 20 has, as respective parts, a first operation dial 20a, a substrate 20b, a rotating shaft 20c, and a pair of arms 20d.

The first operation dial 20a is a semi-annular portion that is directly touched by the passenger. It should be noted that the outer peripheral surface of the first operation dial 20a may be provided with anti-slip processing in order to improve operability by the passenger. The substrate 20b is a part that supports each part forming the first dial knob 20. As shown in FIG. Roughly half of the substrate 20b has a disc shape that supports the first operation dial 20a. The other half of the substrate 20b has a disc shape with a smaller diameter than the portion supporting the first operation dial 20a. The rotating shaft 20c is a shaft around which the first dial knob 20 rotates, and protrudes perpendicularly in one direction from the substrate 20b. In this embodiment, the axial direction of the rotating shaft 20c is along the first direction, that is, the Y direction. The rotary shaft 20c engages with a fourth shaft hole 10g provided in the fourth wall portion 10d of the case body 10. As shown in FIG. The pair of arms 20d radially protrude on the opposite side of the first operation dial 20a with respect to the substrate 20b and are spaced apart from each other at a constant interval.

A part of the substrate 20b that supports the first operation dial 20a may be provided with a through hole 20e that engages the stopper 10h provided on the fourth wall portion 10d of the case body 10. FIG. A set of the stopper 10h and the through hole 20e defines the rotation range of the first dial knob 20 as described above.

Further, the first dial knob 20 has a first engaging shaft 20f that protrudes from the distal end side of each of the pair of arms 20d and in the direction opposite to the direction in which the rotation shaft 20c protrudes from the substrate 20b. As described above, one of the two first engagement shafts 20f engages with the first rear engagement hole 14e of the first rear fin portion 14 . Similarly, the other of the two first engagement shafts 20 f engages with the second rear engagement hole 15 e of the second rear fin portion 15 . Further, the first dial knob 20 has a second engagement shaft 20g protruding in the same direction as the direction in which the rotating shaft 20c protrudes from the substrate 20b, closer to the arm 20d side than the rotating shaft 20c on the substrate 20b. The second engaging shaft 20g engages with a first engaging hole 22d (see FIG. 8A) provided in the first link 22. As shown in FIG.

7B is a perspective view showing the shape of the second dial knob 21. FIG. The second dial knob 21 is used by the passenger to change the attitude of the intermediate movable fins 16 from the passenger compartment side. As with the first dial knob 20, the second dial knob 21 is a disk-shaped member having portions shaped for each action. The second dial knob 21 has a second operation dial 21a, a substrate 21b, and an arm 21d as respective parts.

The second operation dial 21a is a semi-annular portion that is directly touched by the passenger. It should be noted that the outer peripheral surface of the second operation dial 21a may be provided with anti-slip processing in order to improve operability by the passenger. The substrate 21b is a part that supports each part forming the second dial knob 21 . Roughly half of the substrate 21b has a disc shape that supports the second operation dial 21a. The other half of the substrate 21b has a disc shape with a smaller diameter than the portion supporting the second operation dial 21a. The substrate 21b is provided with a first engagement hole 21c that serves as the rotation center of the second dial knob 21. As shown in FIG. As described above, the first engagement hole 21c engages the rotating shaft 10j provided on the second wall portion 10b. The arm 21d protrudes on the side opposite to the second operation dial 21a with respect to the substrate 21b. The arm 21d is provided with a second engaging hole 21e that opens in the same direction as the first engaging hole 21c and is an elongated hole extending along the extending direction of the arm 21d. The second engaging hole 21e engages the third rotating shaft 16e of the intermediate movable fin 16. As shown in FIG. However, in the third rotating shaft 16e, the axial direction of the portion that engages with the second engaging hole 21e and the axial direction of the portion that engages with the third shaft hole 10i of the case body 10 are mutually connected via a link. It is out of alignment (see FIG. 9B, etc.).

8A is a perspective view showing the shape of the first link 22. FIG. The first link 22 is one element that constitutes a first link mechanism 24 a that operates by operating the first dial knob 20 . The first link 22 has a first rod-shaped portion 22a, a second rod-shaped portion 22b, and a third rod-shaped portion 22c. The second rod-shaped portion 22b and the third rod-shaped portion 22c are parallel to each other. One end of the first rod-shaped portion 22a is continuous with one end of the second rod-shaped portion 22b, and the other end of the first rod-shaped portion 22a is connected to the second rod-shaped portion 22b in the same direction as that of the third rod-shaped portion 22c. Continuing with one end.

In addition, the first rod-shaped portion 22a has a first engagement hole 22d that opens in a direction perpendicular to the direction in which the second rod-shaped portion 22b and the third rod-shaped portion 22c continue in the central region in the extending direction. The first engaging hole 22d engages the second engaging shaft 20g of the first dial knob 20 as described above. Each of the second rod-shaped portion 22b and the third rod-shaped portion 22c has a second engaging hole opening in the same direction as the first engaging hole 22d at a tip portion on the opposite side of the end portion continuous with the first rod-shaped portion 22a. It has a hole 22e. The second engaging hole 22e in the second bar-shaped portion 22b engages the first front engaging shaft 11d of the first front fin portion 11. As shown in FIG. A second engaging hole 22e in the third rod-shaped portion 22c engages the second front engaging shaft 12d of the second front fin portion 12. As shown in FIG.

8B is a perspective view showing the shape of the second link 23. FIG. The second link 23 is one element that constitutes a second link mechanism 24b that operates by operating the second dial knob 21 . The second link 23 is a rod-shaped member having a plurality of engagement holes 23a. The plurality of engagement holes 23 a engage the third rotating shafts 16 e of the respective intermediate movable fins 16 according to the arrangement of the plurality of intermediate movable fins 16 .

The finisher 25 is a panel that is installed at the first opening end 10m of the case body 10 and forms a part of the design surface of the installation position of the wind direction adjusting device 1 . The finisher 25 has a gas outlet 25a, a first dial opening 25b, and a second dial opening 25c. The gas outlet 25a blows out the gas that has flowed through the internal flow path 10k toward the passenger compartment. In each figure below, the direction of the wind blown out from the gas outlet 25a, that is, the wind direction _DW , is shown as needed. The first dial opening 25b exposes a portion of the first operation dial 20a of the first dial knob 20 to the passenger compartment side. Similarly, the second dial opening 25c exposes a portion of the second operation dial 21a of the second dial knob 21 to the passenger compartment side.

The material of each element constituting the first dial knob 20, the second dial knob 21, the first link 22, the second link 23, and the finisher 25 may be, for example, a synthetic resin such as ABS resin or PP resin. good.

Next, the action of the wind direction adjusting device 1 will be described.

First, as the first wind direction adjustment, the wind direction adjustment for changing the wind direction _DW along the second direction will be described. In this embodiment, the second direction is the Z direction, so if the Z direction is along the vertical direction, the first wind direction adjustment is an adjustment to change the wind direction _DW along the vertical direction.

The first wind direction adjustment is performed by an occupant in the vehicle operating the first operation dial 20a. Hereinafter, a group including the first front fin 11a, the second front fin 12a, the first rear fin 14a, and the second rear fin 15a that are rotationally displaced by the operation of the first operation dial 20a will be referred to as a "first variable fin group".

FIG. 9A is a side view showing the state of the first link mechanism 24a when the first variable fin group is in the neutral position. Note that in FIG. 9A, a portion of the finisher 25 is drawn in cross section to clarify the movement of the first operation dial 20a. The first link mechanism 24a is provided on one side of the wind direction adjusting device 1 in the Y direction, that is, on the side of the fourth wall portion 10d of the case body 10 in this embodiment.

FIG. 9B is a cross-sectional view of the wind direction adjusting device 1 when the first variable fin group is in the neutral position. The cross section shown in FIG. 9B corresponds to the IXB-IXB cross section in FIG. 1, and is an XZ cross section cut so as to pass through the center of the second dial knob 21 installed in the center of the case body 10 in the Y direction. is.

Here, as a premise for explaining the position change of the first variable fin group, referring to FIG. 9B, the first front fin 11a, the second front fin 12a, the intermediate fin 13, the first rear fin 14a and the second rear fin 15a. will be described.

The position of the intermediate fins 13 in the internal flow path 10k is used as a reference for the gas flow path formed in the internal flow path 10k by the change in the position of the first variable fin group. The intermediate fin 13 is arranged at the center position in the second direction, that is, in the Z direction in this embodiment. Here, as shown in FIG. 9B, a virtual plane _Vp that is defined according to the installation shape of the intermediate fins 13 is defined. Specifically, the virtual plane _Vp is an XY plane passing through the center of the intermediate fin 13 in the Z direction, which is the thickness direction, and along both the first main plane 13d and the second main plane 13e of the intermediate fin 13. be.

As described above, the first front fin 11a and the second front fin 12a are arranged on the outlet side, ie, the first opening end 10m side, relative to the intermediate fin 13 with respect to the extending direction of the internal flow path 10k, ie, the X direction. On the other hand, with respect to the second direction of the internal flow path 10k, that is, the Z direction, the first rotation axis 11b of the first front fin 11a and the second rotation axis 12b of the second front fin 12a are positioned relative to the virtual plane _Vp . arranged symmetrically to each other. The interval between the first rotating shaft 11b and the second rotating shaft 12b is set based on the opening width of the gas outlet 25a in the second direction. In this embodiment, the first rotating shaft 11b is close to one open end of the gas outlet 25a in the second direction, and the second rotating shaft 12b is close to the other open end of the gas outlet 25a in the second direction. Get close. The width between the upstream edge portion 11e and the downstream edge portion 11f of the first front fin 11a is set based on the distance from the first opening end 10m to the downstream edge portion 13b of the intermediate fin 13. . Specifically, the width is such that when the first front fin 11a is rotationally displaced about the first rotation axis 11b, the upstream edge portion 11e of the first front fin 11a is located downstream of the intermediate fin 13 at a certain rotational position. It is set so as to be close to the side edge portion 13b. The same applies to the width between the upstream edge portion 12e and the downstream edge portion 12f of the second front fin 12a.

As described above, the first rear fin 14a and the second rear fin 15a are arranged on the inlet side, ie, the second opening end 10n side, relative to the intermediate fin 13 with respect to the extending direction of the internal flow path 10k, ie, the X direction. On the other hand, with respect to the second direction of the internal flow path _10k , that is, the Z direction, the third rotation axis 14b of the first rear fin 14a and the fourth rotation axis 15b of the second rear fin 15a are symmetrical with respect to the virtual plane Vp. placed in In the present embodiment, the third rotating shaft 14b is close to the first wall portion 10a, which is the wall portion on one side of the case body 10 in the second direction, and the fourth rotating shaft 15b is located near the second wall portion of the case body 10. It is close to the second wall 10b, which is the wall on the other side of the direction. In addition, unlike the first front fin 11a, the width between the upstream edge portion 14g and the downstream edge portion 14f of the first rear fin 14a is not subject to any major restrictions when setting. may be longer than the width of However, when the first rear fins 14a are rotationally displaced about the third rotation axis 14b, the width is such that the downstream edge portion 14f of the first rear fin 14a and the upstream edge portion 13c of the intermediate fin 13 at a certain rotational position. It is the same as above that they are set to be close to each other. The same applies to the width between the upstream edge portion 15g and the downstream edge portion 15f of the second rear fin 15a.

Next, as a premise for explaining the state change of the first link mechanism 24a, the positional relationship of each element constituting the first link mechanism 24a will be explained with reference to FIG. 9A. It should be noted that the engagement relationship between any of the elements is the same as the description of the configuration of each element above, so a detailed description will be omitted here.

In the first link mechanism 24a, the first dial knob 20 provided with the first operation dial 20a, the first front fin 11a and the second front fin 12a are movably connected via the first link 22. ing. Here, the first link 22 has the second rod-shaped portion 22b and the third rod-shaped portion 22c parallel to each other, as described above. The distance between the second engaging hole 22e in the second rod-shaped portion 22b and the second engaging hole 22e in the third rod-shaped portion 22c is the same as the distance between the first rotating shaft 11b and the second rotating shaft 12b. be. Therefore, when the first link 22 is displaced by the rotation of the first operation dial 20a, one of the first front fin 11a and the second front fin 12a moves toward the intermediate fin 13 and the other moves away from the intermediate fin 13. , each rotationally displaces. At this time, the first front fin 11a and the second front fin 12a are rotationally displaced while maintaining parallelism to each other at all times.

In this embodiment, when the first front fin 11a is in the neutral position, the second engagement hole 22e in the second rod-shaped portion 22b and the first rotation shaft 11b are aligned along the X direction. Similarly, when the second front fin 12a is in the neutral position, the second engagement hole 22e in the third bar-shaped portion 22c and the second rotation shaft 12b are aligned along the X direction.

On the other hand, in the first link mechanism 24a, the first rear fin 14a and the second rear fin 15a are movably connected to one of the pair of arms 20d provided on the first dial knob 20, respectively. Here, when the first rear fin 14a is at the neutral position, the first engagement shaft 20f provided on one arm 20d is connected to the rotation shaft 20c of the first dial knob 20 and the third rotation of the first rear fin 14a. It is on an extension line with the axis 14b. Similarly, when the second rear fin 15a is in the neutral position, the first engagement shaft 20f provided on the other arm 20d is positioned on the extension line of the rotation shaft 20c and the fourth rotation shaft 15b of the second rear fin 15a. It is in. Therefore, when the pair of arms 20d is displaced by rotating the first operation dial 20a, one of the first rear fin 14a or the second rear fin 15a moves toward the intermediate fin 13, and the other moves away from the intermediate fin 13. Each rotates and displaces.

In this embodiment, the extending direction of the first rear link arm 14c is approximately along the direction from the upstream edge portion 14g to the downstream edge portion 14f of the first rear fin 14a. Similarly, the extending direction of the second rear link arm 15c is roughly along the direction from the upstream edge portion 15g to the downstream edge portion 15f of the second rear fin 15a. However, the attachment angle of the first rear link arm 14c to the first rear fin 14a and the attachment angle of the second rear link arm 15c to the second rear fin 15a are different from each other as shown in FIG. 9A. This is due to the positional relationship between the position close to the intermediate fin 13 and the position separated from it when the first rear fin 14a and the second rear fin 15a are rotationally displaced. Therefore, the mounting angle described above may be appropriately changed with reference to the shape and fixed position of the intermediate fin 13 .

That is, according to the structure of the first link mechanism 24a, all the fins included in the first variable fin group are rotationally displaced simultaneously by one operation of the first operation dial 20a.

Next, as a specific action related to the first wind direction adjustment, the wind direction _DW generated when the first variable fin group is in the neutral position will be described with reference to FIG. 9B.

In the present embodiment, the neutral position of the first variable fin group refers to the position when the wind direction _DW blows straight along the opening direction of the gas outlet 25a, ie, the so-called neutral state. As for the wind direction adjustment device 1 as a whole, the wind direction _DW also changes depending on the attitude of the second variable fin group including the plurality of intermediate movable fins 16, which will be described in detail below. Therefore, it is when both the first variable fin group and the second variable fin group are in the neutral position that the wind direction _DW actually blows in a straight line along the opening direction of the gas outlet 25a. That is, when the opening direction of the gas outlet 25a is along the X direction as in the present embodiment, the wind direction _DW is aligned along the X direction when the first variable fin group is in the neutral position. .

First, the first front fin 11a and the second front fin 12a are parallel to each other along the X direction, which is the extending direction of the internal flow path 10k, and are symmetrical with respect to the virtual plane _Vp . . At this time, between the first front fins 11a and the second front fins 12a, a gas circulation space is created that roughly matches the opening width of the gas outlet 25a.

On the other hand, the first rear fin 14a and the second rear fin 15a are inclined toward the intermediate fin 13 and are symmetrical with respect to the virtual plane _Vp . At this time, the distance between the downstream edge portion 14f of the first rear fin 14a and the downstream edge portion 15f of the second rear fin 15a approximately matches the opening width of the gas outlet 25a in the second direction.

Therefore, when the first variable fin group is in the neutral position, the gas introduced from the second open end 10n first passes through the circulation space between the first rear fin 14a and the second rear fin 15a, gradually It is collected up to the circulation space where the intermediate fins 13 are arranged. The gas evenly allocated to the circulation space on either the first main plane 13d or the second main plane 13e of the intermediate fin 13 flows directly into the circulation space between the first front fin 11a and the second front fin 12a. led to. Then, the gas that has passed between the first front fin 11a and the second front fin 12a is finally discharged from the gas outlet 25a in the wind direction _DW that is straight along the X direction.

Here, the intermediate fins 13 are fixedly arranged in a posture along the extending direction of the internal flow path 10k. Further, the intermediate fins 13 are arranged symmetrically between the first front fins 11a and the second front fins 12a and symmetrically between the first rear fins 14a and the second rear fins 15a when the first variable fin group is in the neutral position. each criterion of placement. Therefore, according to the flow path formed by the intermediate fins 13 and the first variable fin group, the gas is rectified by the intermediate fins 13 and directed to the gas outlet 25a.

Next, as a specific action related to the first wind direction adjustment, the wind direction _DW generated when the first variable fin group is in the first limit position will be described with reference to FIGS. 10A and 10B.

FIG. 10A is a side view showing the state of the first link mechanism 24a when the first variable fin group is in the first limit position. FIG. 10B is a cross-sectional view of the wind direction adjusting device 1 when the first variable fin group is in the first restricting position. Drawing in FIGS. 10A and 10B corresponds to drawing in FIG. 9A or 9B.

In this embodiment, the first restricting position of the first variable fin group means that the gas flow path in the internal flow path 10k is on the side of the second main plane 13e, which is one of the main planes of the intermediate fins 13. say the position. When the first variable fin group is in the first limit position, the wind direction _DW is directed from the X direction, which is the opening direction of the gas outlet 25a, to the second direction, which is the Z direction, from the minus side to the plus side (hereinafter referred to as , for example, “upward”).

As shown in FIG. 10A, when the occupant operates the first operation dial 20a upward, the first link 22 causes the first front fin 11a and the second front fin 12a to move in one direction while maintaining parallelism with each other. tilt to Here, "one direction" corresponds to "downward" as opposed to "upward" above. On the other hand, the first rear fin 14a and the second rear fin 15a slide on the respective first engagement shafts 20f within the first rear engagement hole 14e or the second rear engagement hole 15e by the action of the pair of arms 20d. tilting in one direction with respect to each other. The first limit position is also defined as a position where, when the first variable fin group is rotationally displaced in this manner, it cannot be rotationally displaced further in the rotational direction.

As shown in FIG. 10B, the upstream edge portion 11e of the first front fin 11a approaches the downstream edge portion 13b of the intermediate fin 13 due to the rotational displacement of the first front fin 11a. On the other hand, the upstream edge portion 12e of the second front fin 12a approaches the second wall portion 10b of the case body 10 due to the rotational displacement of the second front fin 12a. Here, in the present embodiment, the various edge portions are close to each other, so that there is a gap between the adjacent object to the extent that the gas does not leak, or the gap that does not affect the flow of the gas. Or it refers to the state of approaching.

On the other hand, the downstream edge portion 14 f of the first rear fin 14 a approaches the upstream edge portion 13 c of the intermediate fin 13 due to the rotational displacement of the first rear fin 14 a. On the other hand, the downstream edge portion 15f of the second rear fin 15a approaches the second wall portion 10b of the case body 10 due to the rotational displacement of the second rear fin 15a. That is, at this time, the second rear fin 15a sticks to the wall surface of the second wall portion 10b.

That is, when the first variable fin group changes from the neutral position to the first limiting position, the first front fin 11a and the second front fin 12a and the first rear fin 14a and the second rear fin 15a rotate in opposite directions. Displace.

Therefore, when the first variable fin group is in the first restricting position, a wall portion is formed in the internal flow path 10k to which the first rear fin 14a, the intermediate fin 13 and the first front fin 11a are continuous. . As a result, the gas introduced from the second opening end 10n first gradually flows between the second main plane 13e of the intermediate fin 13 and the second wall portion 10b along the inclined surface of the first rear fin 14a. It can be collected in space. The gas allocated to the circulation space on the second main plane 13e is led to the circulation space between the first front fin 11a and the second front fin 12a. Here, the first front fin 11a and the second front fin 12a are inclined upward from the second wall portion 10b toward the gas outlet 25a. Therefore, the gas that has passed over the second main plane 13e flows along the inclined surfaces of the first front fins 11a and the second front fins 12a, and finally, in the wind direction _DW inclined upward from the X direction, It is discharged from the gas outlet 25a.

Next, as a specific action related to the first wind direction adjustment, the wind direction _DW generated when the first variable fin group is at the second limit position will be described with reference to FIGS. 11A and 11B.

FIG. 11A is a side view showing the state of the first link mechanism 24a when the first variable fin group is in the second limit position. FIG. 11B is a cross-sectional view of the wind direction adjusting device 1 when the first variable fin group is in the second limit position. Drawing in FIGS. 11A and 11B corresponds to drawing in FIG. 9A or 9B.

In this embodiment, the second restriction position of the first variable fin group means that the gas flow path in the internal flow path 10k is on the side of the first main plane 13d, which is the other main plane of the intermediate fin 13. say the position. When the first variable fin group is in the second limit position, the wind direction _DW is directed from the X direction, which is the opening direction of the gas outlet 25a, to the positive side to the negative side of the Z direction, which is the second direction (hereinafter referred to as , for example, “downward”).

As shown in FIG. 11A, when the passenger operates the first operation dial 20a downward, the first link 22 causes the first front fin 11a and the second front fin 12a to move in one direction while maintaining parallelism with each other. (upward). On the other hand, the first rear fin 14a and the second rear fin 15a slide on the respective first engagement shafts 20f within the first rear engagement hole 14e or the second rear engagement hole 15e by the action of the pair of arms 20d. tilting in one direction with respect to each other. Further, the second limit position is also defined as a position where, when the first variable fin group is rotationally displaced, it cannot be further rotationally displaced in the rotational direction, similarly to the first limit position.

As shown in FIG. 11B, the upstream edge portion 11e of the first front fin 11a approaches the first wall portion 10a of the case body 10 due to the rotational displacement of the first front fin 11a. On the other hand, the upstream edge portion 12e of the second front fin 12a approaches the downstream edge portion 13b of the intermediate fin 13 due to the rotational displacement of the second front fin 12a.

On the other hand, the downstream edge portion 14f of the first rear fin 14a approaches the first wall portion 10a of the case body 10 due to the rotational displacement of the first rear fin 14a. That is, at this time, the first rear fin 14a sticks to the wall surface of the first wall portion 10a. On the other hand, the downstream edge portion 15f of the second rear fin 15a approaches the upstream edge portion 13c of the intermediate fin 13 due to the rotational displacement of the second rear fin 15a.

In other words, even when the first variable fin group changes from the neutral position to the second limit position, the first front fin 11a and the second front fin 12a and the first rear fin 14a and the second rear fin 15a move in opposite directions. rotationally displaced.

Therefore, when the first variable fin group is in the second restricting position, a wall portion is formed in the internal flow path 10k to which the second rear fins 15a, the intermediate fins 13 and the second front fins 12a are continuous. . As a result, the gas introduced from the second opening end 10n first gradually flows between the first main plane 13d of the intermediate fin 13 and the first wall portion 10a along the inclined surface of the second rear fin 15a. It can be collected in space. The gas allocated to the circulation space on the first main plane 13d is guided to the circulation space between the first front fin 11a and the second front fin 12a. Here, the first front fin 11a and the second front fin 12a are inclined downward from the side of the first wall portion 10a toward the gas outlet 25a. Therefore, the gas that has passed over the first main plane 13d flows along the inclined surfaces of the first front fins 11a and the second front fins 12a, and finally, in the wind direction _DW inclined downward from the X direction, It is discharged from the gas outlet 25a.

So far, the wind direction _DW when the first variable fin group is in the neutral position, the first restricting position, and the second restricting position has been exemplified. On the other hand, the occupant adjusts the direction of rotation and the amount of rotation of the first operation dial 20a between the first limit position and the second limit position so that the wind direction _DW can be directed upward or downward from the straight forward direction. It can be adjusted to a finer angle direction in the range.

Next, as the second wind direction adjustment, the wind direction adjustment for changing the wind direction _DW along the first direction will be described. In this embodiment, the first direction is the Y direction, so if the Z direction is along the vertical direction, the second wind direction adjustment is an adjustment to change the wind direction _DW along the horizontal direction. Hereinafter, as an example, the wind direction _DW adjusted by the second wind direction adjustment will be referred to as leftward or rightward.

The second wind direction adjustment is performed by an occupant in the vehicle operating the second operation dial 21a. Hereinafter, a group including a plurality of intermediate movable fins 16 rotationally displaced by operation of the second operation dial 21a will be referred to as a "second variable fin group".

First, with reference to FIG. 9B, the positional relationship of each element constituting the second link mechanism 24b will be described. It should be noted that the engagement relationship between any of the elements is the same as the description of the configuration of each element above, so a detailed description will be omitted here.

In the second link mechanism 24b, the second dial knob 21 provided with the second operation dial 21a and one of the plurality of intermediate movable fins 16 connect the arm 21d provided on the second dial knob 21. It is movably connected via. As described above, the third rotating shaft 16e of the intermediate movable fin 16 engages with the third shaft hole 10i of the case body 10 in the axial direction of the portion that engages with the second engaging hole 21e provided in the arm 21d. The axial direction of the mating portion is offset from each other via the link. Also, the second engaging hole 21e is an elongated hole. Therefore, when the arm 21d is displaced by the rotation of the second operation dial 21a, the intermediate movable fin 16 connected to the second dial knob 21 is rotationally displaced. On the other hand, all intermediate movable fins 16 are movably connected to each other via second links 23 extending along the first direction. Therefore, as a result of the rotation of the second operation dial 21a, all the intermediate movable fins 16 are rotationally displaced while maintaining their parallelism at all times. That is, according to the structure of the second link mechanism 24b, all the intermediate movable fins 16 included in the second variable fin group are simultaneously rotationally displaced by one operation of the second operation dial 21a.

Note that the intermediate movable fin 16 shown in FIG. 9B is at the neutral position in the second movable fin group. At this time, the principal planes of the first fin 16a and the second fin 16b included in the intermediate movable fin 16 are maintained parallel to the XZ plane.

As a specific action related to the second wind direction adjustment, the occupant appropriately adjusts the rotation direction and the amount of rotation of the second operation dial 21a within a preset rotation range to change the wind direction _DW from the straight forward direction. It can be adjusted to a finer angular direction in the leftward or rightward range.

Next, the effects of the wind direction adjusting device 1 will be described.

A wind direction adjusting device 1 according to the present embodiment includes a cylindrical case body 10 having an internal flow path 10k for circulating gas. The airflow direction adjusting device 1 has two main planes that are substantially perpendicular to each other and that are front and back sides with respect to a second direction that is substantially perpendicular to the first direction in the cross section of the internal flow path 10k. A plate-shaped intermediate fin 13 fixedly arranged at 10k is provided. Further, the wind direction adjusting device 1 includes a plate-shaped front fin arranged closer to the outlet side than the intermediate fins 13 in the internal flow path 10k, and a plate-shaped front fin arranged closer to the inlet side than the intermediate fins 13 in the internal flow path 10k. and a rear fin. The front fins and the rear fins are rotationally displaced in directions opposite to each other about respective rotation axes parallel to the first direction between the first limit position and the second limit position. Here, the first restriction position is a position where the gas flow path is on the first main plane 13 d side of the intermediate fin 13 . The second restricted position is a position where the flow path is on the other second main plane 13 e side of the intermediate fin 13 .

Here, in the above illustration of the present embodiment, the first direction corresponds to the Y direction, and the second direction corresponds to the Z direction. The front fins in this embodiment are the first front fin 11a and the second front fin 12a. The rear fins in this embodiment are the first rear fin 14a and the second rear fin 15a.

First, the wind direction adjusting device 1 includes front fins and rear fins that are rotationally displaced around respective rotation axes parallel to the first direction. Therefore, by changing the postures of these movable fins, the wind direction _DW of the gas blown out can be adjusted with respect to the first direction.

Further, in this embodiment, the intermediate fins 13 are fixedly arranged in the internal flow path 10k. In addition, the front fins and the rear fins are rotationally displaced in opposite directions about respective rotation axes parallel to the first direction with respect to the installation position of the intermediate fins 13, thereby forming a gas flow path. change. Furthermore, the shape of the intermediate fin 13 is plate-like. Therefore, when the wind direction _DW is changed with respect to the first direction, no matter what distribution route is adjusted, it is a fin for defining the distribution route and exists in the distribution route, that is, in the gas flow. The fins are only intermediate fins 13 whose second direction is the plate thickness direction. Therefore, for example, even if the flow path is adjusted so that the airflow direction _DW is straight, the intermediate fins 13 are less likely to block the flow of gas, and as a result, the pressure loss caused by the shape of the intermediate fins 13 results in air blowing. Events that reduce efficiency are unlikely to occur.

Furthermore, in this embodiment, not only the shape of the intermediate fins 13 but also the shape of the front and rear fins, which are variable fins for defining the gas flow path, are plate-like. Therefore, the wind direction adjusting device 1 has a simple structure as a whole.

As described above, according to the present embodiment, it is possible to provide the wind direction adjusting device 1 that suppresses the decrease in the blowing efficiency with a simple structure.

Further, in the wind direction adjusting device 1, the intermediate fins 13 may be arranged at substantially the center position in the second direction.

According to this airflow direction adjusting device 1, when the flow path is adjusted so that the airflow direction _DW is straight, as in the above example, the position of the intermediate fin 13 is such that the gas flow is less likely to be obstructed. Therefore, it is possible to further suppress a decrease in air blowing efficiency. Further, the intermediate fins 13 are advantageous in that they improve the straightness of the blown air due to their rectifying action. Furthermore, the front fins and the rear fins are rotationally displaced with the installation position of the intermediate fins 13 as a reference. Therefore, by arranging the intermediate fins 13 at the central position in the second direction, it is possible to adjust the wind direction DW with good balance in any angular direction when changing the wind direction _DW with the first direction as a reference.

Further, in the wind direction adjusting device 1, when the front fins and the rear fins are at the first restriction position or the second restriction position, the upstream edge portion of the front fin may be close to the downstream edge portion 13b of the intermediate fin 13. . Similarly, the downstream edge portion of the rear fin may be close to the upstream edge portion 13c of the intermediate fin 13 when the front fin and the rear fin are in the first limit position or the second limit position.

Here, in the example of the first limit position described with reference to FIG. 10B, the upstream edge portion 11e of the first front fin 11a is close to the downstream edge portion 13b of the intermediate fin 13. As shown in FIG. On the other hand, the downstream edge portion 14 f of the first rear fin 14 a is close to the upstream edge portion 13 c of the intermediate fin 13 . Similarly, in the example of the second limit position described with reference to FIG. 10C, the upstream edge portion 12e of the second front fin 12a is close to the downstream edge portion 13b of the intermediate fin 13. On the other hand, the downstream edge portion 15f of the second rear fin 15a is close to the upstream edge portion 13c of the intermediate fin 13. As shown in FIG.

According to the wind direction adjusting device 1, when the front fins and the rear fins are in the first limiting position or the second limiting position, the rear fins, the intermediate fins 13 and the front fins can be regarded as forming a series of walls. . Therefore, especially when the front fins and the rear fins are at the first restriction position or the second restriction position, the gas in the internal flow path 10k can be easily guided through the gas outlet 25a.

Further, in the wind direction adjusting device 1, when the front fins and the rear fins are at the first restriction position or the second restriction position, the downstream edge portions of the front fins face the gas outlets 25a for blowing out gas to the outside in the second direction. may be adjacent to either of the two open ends. At the same time, the upstream edge portion of the rear fin may be close to either of the two wall portions of the case body 10 facing each other in the second direction.

Here, in the above example of the present embodiment, regardless of the first restriction position or the second restriction position, the downstream edge portion 11f of the first front fin 11a is located at two opposite sides of the gas outlet 25a in the second direction. Close to one of the open ends. Similarly, the downstream edge portion 12f of the second front fin 12a is close to the other of the two opening ends facing each other in the second direction of the gas outlet 25a. On the other hand, the upstream edge portion 14g of the first rear fin 14a is close to the first wall portion 10a of the two wall portions of the case body 10 facing each other in the second direction. Similarly, the upstream edge portion 15g of the second rear fin 15a is close to the second wall portion 10b of the two wall portions of the case body 10 facing each other in the second direction.

According to the wind direction adjusting device 1, it is possible to easily guide the gas flowing between the first front fins 11a and the second front fins 12a to the gas outlet 25a. Further, according to the wind direction adjusting device 1, the gas introduced into the internal flow path 10k from the second opening end 10n flows through the circulation space formed on at least one side of the two main planes of the intermediate fin 13. can be easily guided to As a result, regardless of the wind direction _DW , it can contribute to suppressing a decrease in the blowing efficiency.

Furthermore, in the wind direction adjusting device 1, the front fins may include a first front fin 11a and a second front fin 12a that maintain parallel postures. The first rotating shaft 11b of the first front fin 11a and the second rotating shaft 12b of the second front fin 12a may be provided on the respective downstream edge portions 11f and 12f. In addition, the first rotating shaft 11b and the second rotating shaft 12b may be arranged substantially symmetrically with respect to a virtual plane _Vp defined in accordance with the installation shape of the intermediate fins 13 as a reference.

According to the airflow direction adjusting device 1, the present disclosure can be implemented as a form provided with two front fins, as illustrated above regarding the present embodiment.

(Second embodiment)
12A to 12C are cross-sectional views of the wind direction adjusting device according to the second embodiment. These figures correspond to FIGS. 9B, 10B, and 11B used in the description of the first embodiment, and are modified according to the present embodiment. Specifically, FIG. 12A shows when the first variable fin group is in the neutral position, FIG. 12B shows when the first variable fin group is in the first limiting position, and FIG. 12C shows the first variable fin group. are in the second limit position, respectively. In these figures, the same components as those shown in FIG. 9B etc. are denoted by the same reference numerals, and the description thereof will be omitted.

In the first embodiment, the first variable fin group includes two front fins (first front fin 11a and second front fin 12a) and two rear fins (first rear fin 14a and second rear fin 15a). did. In contrast, the first variable fin group in the present embodiment includes only one plate-shaped rear fin 30 similar to the first rear fin 14a and the like as the rear fin. Note that the configuration of the first link mechanism in this embodiment for rotationally displacing the first variable fin group is changed to match the configuration and operation of the rear fins 30 .

In this embodiment, the downstream edge portion 30 a of the rear fin 30 is always close to the upstream edge portion 13 c of the intermediate fin 13 . That is, the rear fin 30 is rotationally displaced around a rotation axis (not shown) provided along the first direction in the vicinity of the downstream edge portion 30a.

In this case, when the first variable fin group is in the neutral position, the rear fins 30 are aligned along the X direction with the intermediate fins 13 as shown in FIG. 12A. When the first variable fin group is at the first limiting position, the upstream edge portion 30b of the rear fin 30 approaches the first wall portion 10a of the case body 10, as shown in FIG. 12B. Furthermore, when the first variable fin group is at the second limit position, the upstream edge portion 30b of the rear fin 30 approaches the second wall portion 10b of the case body 10, as shown in FIG. 12C.

The wind direction adjusting device according to the second embodiment can also adjust the flow path of the gas in the same manner as the first embodiment, so that the same effects as the first embodiment can be obtained.

(Third Embodiment)
FIG. 13 is a cross-sectional view of the wind direction adjusting device according to the third embodiment. FIG. 13(a) shows when the first variable fin group is in the neutral position, FIG. 13(b) shows when the first variable fin group is in the first limiting position, and FIG. The states of the wind direction adjusting device when one variable fin group is in the second limit position are shown respectively. 13 schematically show the shape and arrangement relationship of the first variable fin group and the case body 50. As shown in FIG.

First, like the case body 10, the case body 50 according to the present embodiment is generally cylindrical and has an internal flow path for circulating gas. However, the case body 50 is a slanted wall portion that is continuous with the main body portion 50a and gradually narrows the cross section of the internal flow path from the upstream side to the downstream side in the range downstream of the intermediate fins 41 in the present embodiment. 50b. The intermediate fins 41 have the same shape and fixed arrangement as the intermediate fins 13 in the first embodiment.

On the other hand, the first variable fin group in the present embodiment includes only one plate-like front fin 40 similar to the first front fins 11a and the like as the front fin. Similarly, the first variable fin group in the present embodiment includes only one plate-shaped rear fin 42 similar to the first rear fin 14a etc. as the rear fin. The configuration of the first link mechanism in this embodiment for rotationally displacing the first variable fin group is also changed to match the configuration and action of the front fins 40 and the rear fins 42 .

In this embodiment, the upstream edge portion 40b of the front fin 40 is always close to the downstream edge portion 41a of the intermediate fin 41 . That is, the front fin 40 is rotationally displaced around a rotation axis (not shown) provided along the first direction in the vicinity of the upstream edge portion 40b. On the other hand, the downstream edge portion 42 a of the rear fin 42 is always close to the upstream edge portion 41 b of the intermediate fin 41 . That is, the rear fin 42 is rotationally displaced around a rotation axis (not shown) provided along the first direction in the vicinity of the downstream edge portion 42a.

In this case, when the first variable fin group is in the neutral position, the front fins 40 and the rear fins 42 are aligned along the X direction with the intermediate fins 41 as shown in FIG. 13(a). Further, when the first variable fin group is at the first limit position, as shown in FIG. 13B, the downstream edge portion 40a of the front fin 40 is one of the opening ends in the second direction of the gas outlet 50c. , that is, close to the open end on the positive side in the Z direction. On the other hand, the upstream edge portion 42b of the rear fin 42 approaches one wall portion of the main body portion 50a of the case body 10, that is, the wall portion on the positive side in the Z direction. Further, when the first variable fin group is at the second limit position, as shown in FIG. 13(c), the downstream edge portion 40a of the front fin 40 is positioned at the other end of the second direction opening end of the gas outlet 50c. , that is, close to the open end on the negative side in the Z direction. On the other hand, the upstream edge portion 42b of the rear fin 42 approaches the other wall portion of the main body portion 50a of the case body 10, that is, the wall portion on the negative side in the Z direction.

Here, as shown in FIG. 13(b) or 13(c), the position and shape of the inclined surface of the inclined wall portion 50b provided in the case body 50 are such that the first variable fin group is at the first limiting position or at the first position. It is set so as to be approximately parallel to the front fin 40 when it is in the 2 limit position. By providing such an inclined wall portion 50b, even if only one front fin 40 is provided in the first variable fin group, the wind direction _DW can be adjusted as in the first embodiment. The circulation space between the fins 40 and the inclined wall portion 50b can be changed.

The wind direction adjusting device according to the third embodiment can also adjust the flow path of the gas in the same manner as the first embodiment, so that the same effects as those of the first embodiment can be obtained.

In each of the embodiments described above, the number of front fins and rear fins included in the first variable fin group is modified in various ways, but the present disclosure is not limited to these embodiments. For example, by appropriately combining the configurations described in each of the above embodiments, a configuration is possible in which the first variable fin group includes one front fin and two rear fins.

In addition, in the third embodiment, the inclined wall portion 50b, which is a part of the wall portion of the case body 50, is illustrated as a portion for adjusting the wind direction _DW to a desired direction with respect to the front fin 40. The present disclosure is not so limited. For example, a convex portion having an inclined surface may be provided in the vicinity of the gas outlet of the case body 50 as a substitute for the inclined wall portion 50b.

Also, in the above description, the directions of the X direction, the Y direction, and the Z direction are specified. Here, in each of the above drawings, the Z direction can be regarded as a direction along the vertical direction. On the other hand, the wind direction adjusting device 1 and the like of the present disclosure are not limited to the configuration in which the Z direction in the drawing is the direction along the vertical direction. For example, the wind direction adjusting device 1 may be installed such that the Y direction in the drawing is a direction along the vertical direction, or may be installed in other angular orientations.

Although several embodiments have been described, modifications or variations of the embodiments are possible based on the above disclosure. Also, all the constituent elements of the above embodiments and all the features described in the claims may be individually extracted and combined as long as they do not contradict each other.

1 wind direction adjusting device 10 case body 10a first wall portion 10b second wall portion 10k internal flow path 11a first front fin 11b first rotating shaft 11e upstream edge portion 11f downstream edge portion 12a second front fin 12b second rotation Shaft 12e Upstream edge 12f Downstream edge 13 Intermediate fin 13b Downstream edge 13c Upstream edge 13d First main plane 13e Second main plane 14a First rear fin 14f Downstream edge 14g Upstream edge 15a 2 rear fin 15f downstream edge 15g upstream edge 25a gas outlet 30 rear fin 30a downstream edge 30b upstream edge 40 front fin 40a downstream edge 40b upstream edge 41 intermediate fin 41a downstream edge 41b Upstream edge portion 42 Rear fin 42a Downstream edge portion 42b Upstream edge portion 50 Case body 50a Body portion 50b Inclined wall portion 50c Gas outlet _DW wind direction _Vp virtual plane

Claims (6)

a cylindrical case body having an internal flow path for circulating gas;
It has two main planes which are substantially perpendicular to each other and which are front and back sides with respect to a second direction which is substantially perpendicular to the first direction in the cross section of the internal flow path, and is fixedly arranged in the internal flow path. a plate-shaped intermediate fin;
a plate-shaped front fin disposed on the outlet side of the intermediate fin in the internal flow path;
a plate-shaped rear fin disposed on the inlet side of the intermediate fin in the internal flow path;
with
The front fin and the rear fin have a first restriction position where the gas flow path is on one of the main plane sides of the intermediate fins, and a first limit position where the gas flow path is on the other main plane side of the intermediate fins. side and a second limit position, the wind direction adjusting device is rotationally displaced in opposite directions about respective rotation axes parallel to the first direction. The wind direction adjusting device according to claim 1, wherein the intermediate fin is arranged at a substantially central position in the second direction. When the front fins and the rear fins are at the first limit position or the second limit position,
the upstream edge of the front fin is adjacent to the downstream edge of the intermediate fin,
The wind direction adjusting device according to claim 1 or 2, wherein the downstream edge portion of the rear fin is adjacent to the upstream edge portion of the intermediate fin. When the front fins and the rear fins are at the first limit position or the second limit position,
a downstream edge portion of the front fin is close to one of two open ends of a gas outlet for blowing out gas to the outside in the second direction;
The wind direction adjusting device according to claim 3, wherein the upstream edge portion of the rear fin is close to one of two wall portions of the case body facing each other in the second direction. the front fins include a first front fin and a second front fin that maintain a posture parallel to each other;
The rotation shafts of the first front fin and the second front fin are based on a virtual plane that is provided on the downstream edge side of each of the first front fins and the second front fins and that is defined according to the installation shape of the intermediate fins. 5. The wind direction adjusting device according to claim 3 or 4, arranged substantially symmetrically to each other as . the rotating shaft of the front fin is provided on the side of the upstream edge portion adjacent to the downstream edge portion of the intermediate fin;
6. The case body according to any one of claims 3 to 5, wherein the case body has, in a range downstream of the intermediate fins, an inclined wall portion that gradually narrows the cross section of the internal flow path from the upstream side to the downstream side. 2. The wind direction adjusting device according to item 1.

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