JPH10272921A - Ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a ventilator to change the direction of air flowing from an air-conditioner at a wide angle with small ventilation resistance and low ventilation noise. SOLUTION: A ventilator provided with a case body, a case storage unit and a direction changing mechanism changes the ventilation direction to the right and left by the direction changing mechanism, which has a downstream fin 52 and an upstream fin 62 brought together at its end and supported rotationally movable centering a shaft 51a, and by operating an operating knob, the downstream fin 52 and the upstream fin 62 independently change their directions. In other words, the position of a screw 56 turning the operating knob is eccentric to the vertical blade shaft 51a by a distance L1 to the upstream, therefore, the angle of the downstream fin 52 becomes α1 and the angle of the upstream fin 62 becomes β1 to the operating angle AG1 of the operating knob thus causes the angle to be changed step by step.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device for blowing air conditioned by an air conditioner mounted on an automobile or the like into a vehicle interior.

[0002]

2. Description of the Related Art Conventionally, as this type of ventilation device, there is known a ventilation device shown in FIGS. FIG. 9 is a longitudinal sectional view of a conventional ventilation device 100, and FIG. 10 is a sectional view taken along line 10-10 in FIG. 9 and 10, a ventilation device 100 includes a case 102 that forms a ventilation path S, and a vertical direction change mechanism 110 that is disposed on the front side in the case 102.
And a left-right changing mechanism 120 provided substantially at the center of the case 102. The vertical direction changing mechanism 110 includes:
A plurality of horizontal blades 112 (five in the figure) are provided, and the direction of air flowing through the ventilation path S is changed up and down by rotating the horizontal blades 112 about the shaft 114 by operating a dial (not shown). Things. The left / right direction changing mechanism 120 includes a plurality of (five in the figure) vertical blades 122, and operates the shaft 1 by operating an operation unit (not shown).
By rotating around the center 24, the flow direction of the air flowing through the ventilation path S is changed in the left-right direction.

[0003]

As described above, the ventilation device 1
The state in which the ventilation direction is changed by 00 will be described with reference to FIG. In FIG. 11, it is assumed that the vertical blade 122 is changed at an angle a1 with respect to the direction of the wind blown from the entrance 102a of the ventilation path S. At this time, the ventilation direction is changed by the air hitting one surface 122a of the vertical blade 122.

However, if the angle a1 of the vertical blade 122 is greatly changed in order to greatly change the direction of ventilation, the angle of contact of the vertical blade 122 with the surface 122a increases, and the ventilation resistance increases.
The amount of air blown out from is reduced. When the angle a1 of the vertical blade 122 is large, a vortex is generated in a region r1 near the other surface 122b of the vertical blade 122, and noise caused by the vortex tends to increase. Thus, simply increasing the angle a1 of the vertical blade 122 causes problems such as ventilation resistance and noise.

[0005] The present invention is to solve the above-mentioned problems of the prior art, and to change the direction of air blown from an air conditioner,
It is an object of the present invention to provide a ventilation device that can be efficiently changed by small ventilation resistance and ventilation noise.

[0006]

Means for Solving the Problems and Action / Effect The first aspect of the present invention for solving the above problems is to blow air conditioned by an air conditioner through a ventilation passage formed in a case body. In a ventilation device that can change the ventilation direction of the air passing through the ventilation path while blowing from the outlet,
The upstream fin located on the upstream side of the ventilation path and the air flowing continuously through the ventilation path are arranged separately from the upstream fin on the downstream side and joined together at the end of the upstream fin. A downstream fin forming a guide surface for guiding, and a first shaft rotatably supporting one end of the upstream and downstream fins at a position where both ends of the upstream and downstream fins are joined. A wind direction change plate, an operation body, and a second shaft rotatably supporting the operation body with respect to the case body, and applying a force for rotating the operation body about the second axis. Operating means that can rotate the upstream fin and the downstream fin independently by the operation of the operating means, and increase the rotation angle of the downstream fin from the upstream fin so as to increase the rotation angle of the downstream fin. Side fins and downstream fins A linkage drive means cooperating to down, and further comprising a.

[0007] In the ventilation device according to the first invention, the air conditioned by the air conditioner is blown out from the outlet through the ventilation passage formed in the case body. The ventilation direction of the air blown out from the outlet can be changed by rotating the upstream and downstream fins of the wind direction change plate by operating the operation means.

That is, when the operating means is operated, the upstream fin and the downstream fin are simultaneously rotated via the cooperation driving means. At this time, the cooperation driving means rotates the upstream fin and the downstream fin independently of each other, and
The rotation angle of the downstream fin is made larger than that of the upstream fin.

Therefore, after the airflow direction is changed at a small angle in the upstream fin, the airflow direction is largely changed in the downstream fin. Thus, the upstream and downstream fins are changed stepwise, and there is no abrupt change in the ventilation direction by one blade as described in the related art, so that the vortex flows near the upstream and downstream fins. The noise associated with the vortex can be reduced.

In addition, the angles of the winds respectively hitting the upstream fin and the downstream fin are small, and the ventilation resistance at that time is also small. Therefore, the rate at which the amount of air blown from the outlet is reduced is small.

Furthermore, even if the operating angle of the operating means is,
The angle of the downstream fin can be made larger than the operation angle of the operation means, and thus the ventilation direction can be largely changed.

According to a second aspect of the present invention, there is provided a ventilation system wherein air conditioned by an air conditioner is blown out from an air outlet through a ventilation passage formed in a case body, and a ventilation direction of the air passing through the ventilation passage is changeable. In the device, the upstream fin located on the upstream side of the ventilation path and the upstream fin are disposed separately on the downstream side and are joined together at the end of the upstream fin to be continuous and form the ventilation path. A first shaft that rotatably supports one end of the upstream fin and the downstream fin at a position where both ends of the upstream fin and the downstream fin form a guide surface for guiding flowing air; And a second axis for rotatably supporting the operation body with respect to the case body, and rotating the operation body about the second axis. Can add force Upstream means for linking the operating means and the upstream fin at a position away from the second shaft to the upstream so that the rotational force of the operating means rotates the upstream fin. A side engaging means and a downstream link between the operating means and the downstream fin at a position away from the second shaft to the downstream so that the rotational force of the operating means rotates the downstream fin; And a side engaging means, wherein the first shaft is disposed apart from the second shaft on an air outlet side of the ventilation path.

In the second invention, when the operating means is operated, the operating body rotates about the second axis, and the upstream engaging means provided at a distance from the second axis to the upstream side of the ventilation path. A rotational power is applied to the upstream fin through the fin, thereby rotating the upstream fin about the first axis. At the same time, by the rotation of the operating means, a turning force is also applied to the downstream fins via the downstream engaging means provided at a position downstream from the second shaft in the ventilation path, whereby the downstream fin is rotated. Fins are first
Rotate around an axis.

[0014] At this time, the upstream engaging portion moves the upstream fin along a locus drawn by an arc centered on the second axis and having the radius between the second axis and the upstream engaging portion as a radius. Rotate about the first axis. Here, since the first shaft is disposed further away from the second shaft on the air outlet side of the ventilation path, the radius represented by the distance from the upstream engagement portion to the first shaft is equal to the upstream engagement portion. Is larger than the radius represented by the distance from to the second axis. That is, in the trajectory of the upstream engaging portion drawn in an arc, the upstream fin rotates with a radius larger than the radius of rotation of the operation main body, so that the rotation angle is smaller than the operation angle of the operation main body.

[0015] On the other hand, the downstream-side engaging portion moves the downstream-side fin along a locus drawn by an arc centered on the second axis and having the radius of the distance between the second axis and the downstream-side engaging portion. Rotate around one axis. As described above, since the first shaft is disposed farther to the air outlet side of the ventilation path than the second shaft, the radius expressed by the distance from the downstream engagement portion to the first shaft is smaller than the radius of the downstream shaft. It is smaller than the radius represented by the distance from the joint to the second axis. That is, since the downstream fin is rotated with a radius smaller than the radius of rotation of the operation main body, contrary to the upstream fin, the downstream fin is turned along a locus drawn by an arc, so that the angle is smaller than the operation angle of the operation main body. The rotation angle is large.

By thus eccentrically configuring the first shaft and the second shaft, the rotation angle between the upstream fin and the downstream fin can be changed with a simple structure.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the configuration and operation of the present invention described above, a preferred embodiment of the present invention will be described below.

FIG. 1 is an exploded perspective view showing a ventilation device 10 according to one embodiment of the present invention. In FIG. 1, a ventilation device 10 is a device that blows air, which is blown from a vehicle air conditioner (not shown) and is temperature-controlled, into a vehicle interior, and has a function of changing the blowing direction. The ventilation device 10 includes a case main body 20, a case storage unit 30 having a ventilation path S, a vertical direction changing mechanism 40, and a horizontal direction changing mechanism 50. In the ventilation device 10 having this configuration, the air blown from the air conditioner enters the ventilation passage S, and the air passing through the ventilation passage S is changed in the ventilation passage S in the left-right direction by the left-right direction changing mechanism 50, and further in the vertical direction. The direction in the up-down direction is changed by the changing mechanism 40.

Next, the configuration of each part of the ventilation device 10 will be described in detail. The case body 20 includes an upper surface 2
2, the storage space 25 of the box body by the bottom surface 23 and the side surface 24
The case storage unit 30 is stored in the storage room 25. The front of the case body 20 is a decorative panel 26, and the decorative panel 26
a is formed. The outlet 26a is a port that is connected to the ventilation path S and blows air into the vehicle interior.

The case storage section 30 supports the left-right direction changing mechanism 50 and is stored in the storage chamber 25 of the case body section 20. The air passage S has a rear opening 35 and a front opening 36, respectively.

FIG. 2 is an enlarged view of the vertical direction changing mechanism 40 shown in FIG. In FIG. 2, a vertical direction changing mechanism 40 includes a plurality of horizontal blades 42 and side plates 44 and 4.
4 and a dial 45. Horizontal blade 42
In the figure, five sheets are arranged in the horizontal direction, the shaft parts 42a are provided at both ends thereof, and the shaft parts 42a are
Is rotatably supported by the side plate portion 44 by protruding into the support hole 44a. In addition, these horizontal blades 4
Numerals 2 are connected by a connecting plate 43, and are configured to integrally change the vertical direction. The dial 45 is a member for manually changing the vertical direction of the horizontal blade 42. The dial 45 is rotatably supported on the side surface 24 of the case body 20 shown in FIG. I have. Note that a part of the dial 45 is
Operation hole 2 formed in decorative panel 26 of case body 20
6H, the dial 45 can be operated manually.

A connecting pin 42b protrudes from one end of the central horizontal blade 42C of the horizontal blades 42. The connecting pin 42b passes through a guide hole 44b formed in the side plate portion 44, and
And is eccentrically connected to the dial 45.

With the structure of the vertical direction changing mechanism 40,
When the portion of the dial 45 exposed from the operation hole 26H is vertically rotated, the dial 45 rotates around the screw 46. By the rotation of the dial 45, the connecting pin 42b is guided by the guide hole 44b and applies a force for rotating the central horizontal blade 42C about the shaft 42a. The five horizontal blades 42 are the central horizontal blade 42
Since it is connected to C by the connecting plate 43, it rotates simultaneously. Thereby, the air flowing through the ventilation path S can be changed in the vertical direction.

Returning to FIG. 1, the left-right changing mechanism 50 changes the air flowing through the ventilation path S in the left-right direction.
A plurality of vertical blades 51, connecting plates 54 and 64,
An operation knob 55 is provided. The five vertical blades 51 are vertically arranged, and have shaft portions 51a (first shafts) at the upper and lower ends of the center thereof. The shaft portions 51a are supported by the shaft holes 32a of the upper surface portion 32, and By being supported by the shaft hole 33 a of the lower surface portion 33, it is rotatably supported between the upper surface portion 32 and the lower surface portion 33.

FIG. 3 is an enlarged perspective view showing a main part of the left-right changing mechanism 50, and shows only the central vertical blade 51C. In FIG. 3, the vertical blade 51 is composed of two pieces, a downstream fin part 52 and an upstream fin part 62, and these are rotatably supported by a shaft part 51a.

FIG. 4 is a side view showing the central vertical blade 51C of the vertical blade 51 partially cut away. The downstream fin portion 52 is arranged on the downstream side of the ventilation path S and changes the direction of the wind in the left-right direction, and is formed of a thin resin plate. A fitting protrusion 52a is formed in a side portion of the downstream fin portion 52, and shaft holes 52b coaxial with the shaft portion 51a are respectively formed in upper and lower ends of the fitting protrusion 52a. I have. The upstream fin portion 62 is arranged on the upstream side of the ventilation path S, and changes the ventilation direction in the left-right direction similarly to the downstream fin portion 52. A fitting recess 62a to be fitted to the fitting protruding portion 52a is formed in a side portion of the upstream fin portion 62, and a shaft portion 62b protrudes from upper and lower ends of the fitting recess 62a. Have been. The shaft portion 62b is
By protruding into the shaft hole 52b, the upstream fin portion 62
Are rotatably supported by the downstream fin portion 52.

Returning to FIG. 3, a shaft portion 52d is protruded from a step 52c at the front upper end of the downstream fin portion 52, respectively. When these shaft portions 52d protrude into the shaft holes 54a of the connection plate 54, five downstream fin portions 5 are formed.
2 are integrally connected to each other via a connection plate 54. Also, a step 62 at the rear upper end of the upstream fin 62
Each of the shaft portions 62d protrudes into the shaft hole 64a of the connecting plate 64, whereby the five upstream fin portions 62 are integrated with each other via the connecting plate 64. Are connected.

The operation knob 55 is for manually changing the direction of the vertical blade 51, and is used for the case main body 2 shown in FIG.
The bottom surface 23 of the vertical blade 51C is rotatably mounted by a screw 56 serving as a first axis. The position of the screw 56 is a distance upstream of the shaft 51a of the vertical blade 51C as described later. It is mounted eccentrically by L1 (see FIG. 5). A part of the operation knob 55 is configured to be exposed from the operation hole 26D of the decorative panel 26 shown in FIG. 1 so that the operation knob 55 can be rotatably operated.

Returning to FIG. 3, the operation knob 55 and the vertical blade 5
The connection structure with 1 is as follows. That is, of the downstream fins 52, the central downstream fin 5
At the lower end of 2C, a connecting pin 52F that constitutes a downstream-side engaging means protrudes. The connection pin 52 </ b> F penetrates a guide hole 33 </ b> F formed in the lower surface 33, and further projects into a front shaft hole 55 a of the operation knob 55 to be connected. On the other hand, of the upstream fins 62, the central upstream fin 6
At the lower end of 2C, a connecting pin 62B that constitutes an upstream engaging means is protruded. The connection pin 62B penetrates a guide hole 33B formed in the lower surface portion 33, and further projects into and connects to a rear shaft hole 55b of the operation knob 55.

FIG. 5 shows a left-right direction changing mechanism 5 of the ventilation device 10.
It is the figure which took the cross section in the horizontal direction near 0. FIG. 6 shows the left-right changing mechanism 50 by operating the operation knob 55 from FIG.
It is a figure showing the state where was operated.

Now, when the operation knob 55 is rotated by the operation angle AG1 from the state shown in FIG. 5 as shown in FIG. 6, the operation knob 55 rotates around the screw 56. The rotation of the operation knob 55 causes the connection pin 52F to be guided by the guide hole 33F to rotate the central downstream fin portion 52C about the shaft portion 51a. At this time, the five downstream fin portions 52
Are connected to each other via the connection plate 54, and therefore rotate integrally in the same direction. At the same time, the connection pin 62B of the upstream fin portion 62C is guided by the guide hole 33B to move the central upstream fin portion 62C to the shaft portion 51a.
Is turned around. Since the five upstream fin portions 62 are also connected to each other via the connection plate 64, they integrally rotate in the same direction.

As described above, in the left-right direction changing mechanism 50, the downstream fin portion 52 and the upstream fin portion 62 rotate independently, and the screw 56 which is the rotation center of the operation knob 55 is rotated.
Are eccentric by a distance L1 upstream with respect to the shaft portion 51a, which is the center of rotation of the vertical blade 51C. The operation of changing the ventilation direction by the configuration of the vertical blade 51 will be described with reference to FIGS. FIG. 7 is a view for explaining a positional relationship between the operation knob 55 and the vertical blade 51. FIG. 8 is a view showing a state in which the operation knob 55 is turned by the operation angle AG1 from the state of FIG. The operation knob 55
The solid line indicates the vertical blade 51.

7 and 8, the operation knob 55 is supported rotatably about a screw 56, and the downstream fin portion 52 and the upstream fin portion 62 constituting the vertical blade 51 are respectively rotated by a shaft portion 51a. It is movably supported.
The operation knob 55 and the downstream fin portion 52 are connected to the front shaft hole 5.
5a (FIG. 3) is engaged with the connection pin 52F, and the operation knob 55 and the upstream fin portion 62 are engaged with the rear shaft hole 55b (FIG. 3) and the connection pin 62B.

In such a positional relationship, when the operation knob 55 is operated at the operation angle AG1 as shown in FIG. 8 from the state of FIG. 7, the operation knob 55 rotates around the screw 56,
Accordingly, the connecting pin 52 engaged with the front shaft hole 55a
F receives the turning force in the same direction. This connecting pin 52F
By the turning force of (2), the downstream fin portion 52 rotates about the shaft portion 51a. The movement distance of the connecting pin 52F at this time is indicated by an arc CL1. Connecting pin 52 by the distance of arc CL1
When F moves, the downstream fin portion 52 rotates by an angle α1 about the shaft portion 51a. At this time, the shaft 51
a is eccentric to the screw 56 by the distance L1 toward the upstream side, so that the angle α1 of the downstream fin portion 52 is
5 is larger than the operation angle AG1.

On the other hand, with the rotation of the operation knob 55, the connecting pin 62B engaged with the rear shaft hole 55b also receives a rotating force in the same direction. By the turning force of the connecting pin 62B, the upstream fin portion 62 rotates in the same direction about the shaft portion 51a. The moving distance of the connecting pin 62B at this time is represented by the circular arc CL.
Indicated by 2. When the connecting pin 62B moves by the distance of the arc CL2, the upstream fin portion 62 rotates by the angle β1 about the shaft portion 51a. Also in this case, since the shaft portion 51a is eccentric to the screw 56 by the distance L1 downstream,
The angle β1 of the upstream fin portion 62 is smaller than the operation angle AG1 of the operation knob 55.

Therefore, the operation knob 55 is moved to the operation angle AG.
1, the downstream fin portion 52 is moved to the operation angle AG1.
The upstream fin portion 62 rotates at an angle β1 smaller than the operation angle AG1. When the operation knob 55 is operated by the operation angle AG1 in this manner, the ventilation direction of the vertical blade 51 is changed by the angle β1 by the upstream fin portion 62, and further (α1−β1) by the downstream fin portion 52. The ventilation direction is changed by an angle, and the ventilation direction is changed by an angle of β1 throughout. As described above, by changing the direction of the vertical blade 51, the ventilation direction is gradually changed by the upstream fin portion 62 and the downstream fin portion 52. Therefore, turbulence such as a vortex is less generated in the region R of FIG. 8 than in the case where the direction of the wind is suddenly changed as described in the related art, and the resulting ventilation noise is reduced. Can be.

The direction D1 of the air flowing from the rear opening 35 and the direction D2 of the air blown from the outlet 26a.
When the operation knob 55 is rotated by the operation angle AG1, the direction of the downstream fin portion 52 is changed at an angle β1 larger than the operation angle AG1, that is, the operation amount of the operation knob 55 is reduced. The direction of the wind can be greatly changed, and the directionality is excellent.

The present invention is not limited to the above-described embodiment, but can be implemented in various modes without departing from the gist of the invention. For example, the following modifications may be made.

(1) In the above embodiment, the vertical blade 51 of the left / right direction changing mechanism 50 is configured to be changed stepwise. However, the present invention is not limited to this.

(2) Also, the embodiment in which the ventilation device is applied to an air conditioner mounted on an automobile has been described. However, the invention is not limited to this.
It may be applied to a commercial or home air conditioner.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a ventilation device 10 according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a vertical direction changing mechanism 40.

FIG. 3 is an exploded perspective view showing the vicinity of a left-right direction changing mechanism 50.

FIG. 4 is a side view showing a vertical blade 51C partially broken away.

FIG. 5 is an explanatory diagram for explaining the operation of the left-right direction changing mechanism 50;

FIG. 6 is an explanatory diagram illustrating a state in which the direction of the vertical blades 51 has been changed from the state of FIG. 6;

FIG. 7 is an explanatory diagram illustrating a state in which the vertical blade 51 is not changed.

8 is an explanatory diagram illustrating a state in which the angle of the vertical blade 51 has been changed from the state in FIG. 7;

FIG. 9 is a longitudinal sectional view showing a conventional ventilation device 100.

FIG. 10 is a sectional view taken along the line 10-10 in FIG. 9;

FIG. 11 is an explanatory view for explaining a problem of the conventional ventilation device 100.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Ventilation apparatus 20 ... Case main body 22 ... Top part 23 ... Bottom part 24 ... Side part 25 ... Storage room 26 ... Decorative panel 26a ... Outlet 26H ... Operation hole 26D ... Operation hole 30 ... Case storage part 32 ... Top part 32a: Shaft hole 33: Lower surface 33a: Shaft hole 33F: Guide hole 33B: Guide hole 34: Side surface 35: Rear opening 36: Front opening 40: Vertical direction changing mechanism 40: Changing mechanism 42: Horizontal blade 42a: Shaft Part 42C Horizontal blade 42b Connection pin 43 Connection plate 44, 44 Side plate 44 Side plate 44a Support hole 44b Guide hole 45 Dial 45a Support hole 46 Screw 50 Left-right direction change mechanism 50 Change Mechanism 51: Vertical blade 51a: Shaft portion 51C: Vertical blade 52: Downstream fin portion 52a: Fitting protruding portion 52b: Shaft hole 52c: Step portion 52d: Shaft 52C: Downstream fin 52F: Connection pin 54, 64 ... Connection plate 54 ... Connection plate 54a ... Shaft hole 55 ... Operation knob 55a ... Front shaft hole 55b ... Rear shaft hole 56 ... Screw 62 ... Upstream fin Portion 62a Fitting recess 62b Shaft portion 62c Step portion 62d Shaft portion 62C Upstream fin portion 62B Connection pin 64 Connection plate 64a Shaft hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akiyoshi Nagano 1 Ogataai Ogatai, Kasuga-cho, Nishi-Kasugai-gun, Aichi Prefecture Inside Toyoda Gosei Co., Ltd. Within Toyoda Gosei Co., Ltd. (72) Inventor Hiroshi Tadashima ▼ 1 Ochiai, Nagahata, Kasuga-cho, Nishi-Kasugai-gun, Aichi Prefecture Inside Toyoda Gosei Co., Ltd. Address: Toyoda Gosei Co., Ltd. (72) Inventor: Yuji Shimizu 87, Kamino, Asada-cho, Nisshin-shi, Aichi Pref.

Claims (2)

[Claims] 1. A ventilation device, wherein air conditioned by an air conditioner is blown out of an air outlet through a ventilation passage formed in a case main body, and a ventilation direction of the air passing through the ventilation passage can be changed. An upstream fin located on the upstream side of the fin, and a guide that is disposed separately downstream of the upstream fin and that is joined at an end of the upstream fin to guide air that is continuous and flows through the ventilation path. A wind direction changer comprising: a downstream fin forming a surface; and a first shaft rotatably supporting one end of each of the upstream and downstream fins at a position where both ends of the upstream and downstream fins are joined. A plate, an operation main body, and a second shaft rotatably supporting the operation main body with respect to the case main body, and a force for rotating the operation main body about the second axis can be applied. Operating means and By operating the operating means, the upstream fin and the downstream fin are independently rotated, and the upstream fin and the downstream fin are rotated so that the rotation angle of the downstream fin is larger than that of the upstream fin. A ventilator, comprising: a cooperative driving means for cooperating. 2. A ventilation device, wherein air conditioned by an air conditioner is blown out from an outlet through a ventilation passage formed in a case body, and a ventilation direction of the air passing through the ventilation passage can be changed. An upstream fin located on the upstream side of the fin, and a guide that is disposed separately downstream of the upstream fin and that is joined at an end of the upstream fin to guide air that is continuous and flows through the ventilation path. A wind direction changer comprising: a downstream fin forming a surface; and a first shaft rotatably supporting one end of each of the upstream and downstream fins at a position where both ends of the upstream and downstream fins are joined. A plate, an operation main body, and a second shaft rotatably supporting the operation main body with respect to the case main body, and a force for rotating the operation main body about the second axis can be applied. Operating means and The second fin is moved between the operating means and the upstream fin so that the rotational force of the operating means rotates the upstream fin.
An upstream engaging means for cooperating at a position distant from the shaft to the upstream side; and a second fin between the operating means and the downstream fin such that the rotational force of the operating means rotates the downstream fin. Downstream engagement means for cooperating at a position distant from the shaft to the downstream side, wherein the first shaft is arranged away from the second shaft on the side of the air outlet of the ventilation path; The ventilation device characterized by the above.