JPH0347167Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a wind direction control device arranged at the air outlet of an air conditioner of an automobile, etc., and in particular to a wind direction control device that has a highly reliable air deflection angle. be.

[Conventional technology]

Figures 3a to 4d and 4a to 4d show a conventional wind direction control device of this type, in which 1 is a case of an air outlet, 2 is a rotating shaft 2a disposed inside this case 1, and shows a conventional wind direction control device of this type.
The frame is rotatably supported through the frame and rotates in the direction of arrow X. 3 is a horizontal fin that deflects the air flow Z from the duct (not shown) in the vertical direction;
It is integrally installed inside. 4 is the above air flow Z
A plurality of vertical fins for deflecting left and right are swingably supported within the frame 2 via a rotation shaft 4a. Reference numeral 5 denotes a column that is integrally provided with the vertical fin 4 located in the center and curves into an arched shape. Reference numeral 6 denotes a post provided at the upper end of each vertical fin 4 to which a pin 7 is pivotally connected.
A joint 8 is a lever that is engaged with a rod 9 via a clutch (friction type clutch) 10, and a U-shaped notch 11 provided at the tip.
is cam-engaged with the column 5 of the vertical fin 4. 12 is a deceleration motor, 13 is a rotating shaft, and 14 is a roller fixed to this rotating shaft 13, which is cam-engaged with the rod 9. And this roller 1
4 converts the rotational force of the deceleration motor 12 into linear reciprocating motion in the direction of arrow Y and transmits it to the rod 9.

A conventional wind direction control device is configured as described above,
Purified air from a duct (not shown) flows as an air flow Z in the direction of the arrow.

When the deceleration motor 12 is energized in this state, the roller 14 rotates and the rod 9 reciprocates in the direction of the arrow Y, whereby each vertical fin 4 moves in the direction of the arrow R with the rotation shaft 4a as a fulcrum. It swings to deflect left and right depending on the wind direction.

On the other hand, when the frame 2 is rotated about the rotating shaft 2a, the orientation of the horizontal fins 3 changes up and down, and the wind direction is deflected up and down.

[Problems to be solved by the invention] In the conventional wind direction control device as described above, the vertical fins 4 also rotate at the same time as the frame 2 rotates in the vertical direction, so the horizontal deflection angle of the vertical fins 4 is , frame 2
There was a problem that the angle of rotation varied depending on the angle of rotation.

That is, when the horizontal fin 3 is in a horizontal state as shown in FIGS. 4a and 4b, the support 5 of the vertical fin 4 and the U-shaped notch 11 of the lever 8
The distance from the point of contact with the axis of the rotating shaft 4a of the vertical fin 4 is _l1 , and therefore, the vertical fin 4 is deflected by _θ1 with respect to the amount of movement L of the rod 9. On the other hand, when the frame 2 is rotated the required amount in the direction of the arrow X as shown in FIGS.
The distance from the point of contact with the vertical fin 4 to the axis of the rotating shaft 4a of the vertical fin 4 is l ₂ (l ₁ >l ₂ ). Therefore, for the amount of movement L of the rod 9, the vertical fin 4 is θ ₂ (θ ₁ <θ ₂ )
There was a problem in that the deflection angle of the vertical fins 4 changed.

Furthermore, even if the rotation angle of the frame 2 is constant, the contact point between the column 5 of the vertical fin 4 and the U-shaped notch 11 of the lever 8 is in the longitudinal direction of the column 5, that is, the top and bottom of FIGS. If it is installed in the wrong direction,
There was a problem in that the deflection angle of the vertical fins 4 changed compared to the normal case.

This invention was made to solve this problem, and aims to provide a wind direction control device that can always keep the deflection angle of the blade constant even if the relative positional relationship between the blade side and the drive mechanism side changes. purpose.

[Means for solving problems]

In the wind direction control device according to this invention, the base end side of each blade is pivotally connected to a single joint so that they can interlock with each other, and this joint is reciprocated by a reciprocating drive mechanism to swing each blade. This is how it was done.

[Effect]

In this invention, the base end of each wing is pivotally connected to a single joint so that they can interlock with each other, and this joint is driven back and forth by a reciprocating drive mechanism to swing each wing. So,
The joint performs the same reciprocating motion as the reciprocating drive mechanism, and even if the relative positional relationship between the blade side and the drive mechanism side changes, it is possible to always keep the deflection angle of the blade constant.

〔Example〕

1 and 2 show an embodiment of this invention, and in the figures, the same reference numerals as in FIGS. 3 and 4 indicate the same or corresponding parts. Reference numeral 20 indicates a plurality of vertical fins disposed within the frame 2 and is swingably supported via a rotation shaft 20a, and 21 indicates each of the vertical fins 20.
A joint whose upper and lower proximal ends are pivotally connected via pins 22a and 22b to interlock the vertical fins 20. 23 is a post integrally provided with this joint 21 and curved into an arcuate shape.
By integrating the lever 8 with the U-shaped notch 11, the lever 8 is prevented from deflecting when engaged with the U-shaped notch 11.

In the wind direction control device configured as described above, when the rod 9 moves in the arrow X direction, the joint 21 also moves by the same amount in the arrow X direction. It is determined by the amount of movement of the joint 21. Therefore, the axis of the rotation shaft 20a of the vertical fin 20 is tilted back and forth with respect to the air flow Z, and the contact point between the U-shaped notch 11 of the lever 8 and the column 23 of the joint 21 changes, and the vertical fin 20 The deflection angle of the vertical fins 20 is always constant even if the distance from the axis of the rotation shaft 20a changes.

That is, as shown in FIG. 2a, the horizontal fin 3
For example, if the rod 9 is horizontal and the distance from the point of contact between the support of the joint 21 and the U-shaped notch 11 of the lever 8 to the axis of the rotation shaft 20a of the vertical fin 20 is _l1 , then the rod 9 When the joint 21 moves by an amount L, the joint 21 also moves by an amount L, and the vertical fin 20 is deflected by θ ₁ .

On the other hand, as shown in FIG. 2b, the frame 2 is connected to the rotating shaft 20
When the rod 9 rotates about the fulcrum and the distance corresponding to the distance l ₁ changes to l ₂ , when the rod 9 moves by the required amount, the joint 21 also moves by the same amount, and the vertical fin 20 is deflected by θ ₂ . And at this time, Rod 9
If the amount of movement of the joint 21 is L, then the amount of movement of the joint 21 is also L, so in this case θ ₂ =
θ ₁ . That is, regardless of the rotation angle of the frame 2, the deflection angle of the vertical fins 20 is always constant.

In the above embodiment, the support 23 is curved in an arcuate shape, but it may be straight. Furthermore, in the above embodiment, the frame 2 rotates about the rotating shaft 2a as a fulcrum, but the same effect can also be applied when the relative mounting positions of the support column 23 and the lever 8 are shifted in the vertical direction as shown in FIG. 1b. Because the effect can be obtained,
It can also be applied to a type in which the frame 2 does not rotate.

[Effect of idea]

As explained above, this idea is such that the base end of each wing is pivoted to a single joint so that they can interlock with each other, and this joint is driven back and forth by a reciprocating drive mechanism to swing each wing. Because of this, the joint performs the same reciprocating motion as the reciprocating drive mechanism, and even if the relative positional relationship between the blade side and the drive mechanism side changes, the deflection angle of the blade can always be kept constant, and the air deflection angle can be kept constant. Reliability can be improved.

[Brief explanation of the drawing]

FIG. 1a is a sectional view showing the main parts of a wind direction control device according to an embodiment of this invention, and FIG. 1b is a side view thereof.
Figure c is a perspective view of the joint and support, Figures 2a and b are detailed views of the main parts of Figure 1a, Figure 3a is a front view of an example of a conventional wind direction control device, and Figure b is the same. A cross-sectional view taken along line B-B in Figure a, and Figure c is C-C in Figure a.
FIG. 4D is a sectional view taken along the line D--D in FIG. 3A, and FIGS. 2... Frame, 2a... Rotating shaft, 8... Lever, 9
. . . Rod, 11 . . . U-shaped notch, 12 . In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A frame disposed in the air outlet, a plurality of rotating shafts arranged parallel to each other within the frame, and pivotably pivoted to each rotating shaft. a joint that pivotally connects the proximal end sides of each wing to interlock each other, and a reciprocating drive mechanism that is locked to this joint, and the reciprocating drive mechanism causes each wing to move through the joint. A wind direction control device that controls the blowing direction of air by swinging blades. (2) The utility model claimed in claim 1, characterized in that the frame in which the blades and the joint are incorporated is swingable in a direction perpendicular to the swinging direction of the blades relative to the reciprocating drive mechanism. Wind direction control device.