JPH0354364Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a wind direction adjustment device such as a ventilator grill installed at an air outlet for air conditioning and ventilation in automobiles, etc.

(Prior Art) A conventional wind direction adjustment device for an automobile is shown in FIG. 4.

This wind direction adjustment device has a louver group 2 for adjusting the wind direction in the vertical direction and a louver group 3 for adjusting the wind direction in the left and right directions at the front and rear parts of a rectangular case body 1 that is open at the front and rear (top and bottom in the figure). and each louver group 2, 3
A plurality of rectangular plate-shaped wind direction louver pieces 4 and 5 are rotatably rotated in the same direction by fitting shaft parts 4a and 5a protruding from both ends thereof and holes 1a formed in the case body 1, respectively. These louver groups 2 and 3 are installed in parallel.
A plurality of wind direction louver pieces 4, 5 are connected by an interlocking mechanism such as a connecting rod (not shown), and each louver group 2,
A plurality of wind direction louver pieces 4 and 5 of No. 3 are interlocked in the same direction so that they rotate in the same direction while remaining in a parallel state.

Then, on the inner walls 1L and 1R of the left and right case bodies 1 of the louver group 3 for adjusting the wind direction in the left and right directions located on the rear side, that is, on the side of the air duct, there are protrusions 6 having triangular cross sections.
are provided along the rotation center axis of the wind direction louver piece 5, and this protrusion 6 allows the left and right inner walls 1 of the case body 1 to
Reduce the airflow passing between L, 1R and each wind direction louver piece 5L, 5R on both left and right outer sides of the louver group 3,
As a result, the straight airflow that has passed between the inner walls 1L, 1R of the case body 1 and the wind direction louver pieces 5L to 5R on both sides of the louver group 3 can be directed to the left or right by passing between the wind direction loopers 5L to 5R. This prevents it from becoming an obstacle to the deflected airflow.

That is, if we consider a case where there is no protrusion 6 on the inner walls 1L and 1R of the case body 1 in a state where the airflow is deflected to the left as shown in the figure, from the air duct to the rear part of the case body 1 (lower part in the figure) ) passes between the left inner wall 1L of the case body 1 and the leftmost wind direction louver piece 5L of the louver group 3, but at this time, the passage is tapered and narrow. As the wind speed increases, the straight airflow becomes faster and blows out, so it passes between each of the wind direction louver pieces 5L to 5R on the inside and works to return the deflected airflow bent to the left to the straight airflow.
This results in a loss of the airflow deflection effect by the louver group 3, but this is resolved by providing the protrusion 6.

(Problems to be Solved by the Invention) In the conventional wind direction adjustment device described above, the projections 6 are used to connect the inner walls 1L, 1R of the case body 1 and the wind direction louver pieces 5L, 5R on both outer sides of the louver group 3. The airflow passing through is reduced, thereby preventing the generation of fast straight airflow from between the inner walls 1L, 1R of the case body 1 and the wind direction louver pieces 5L, 5R on both outer sides of the louver group 3 when the airflow is deflected. Each wind direction louver piece 5L~
This is done so that it does not become an obstacle to the deflected airflow that passes between 5R and bends to the left or right.
By providing the protrusions 6, the airflow passages on both sides of the louver group 3 are constantly constricted, which increases the resistance to the airflow passing therethrough.

The present invention was devised in view of these points, and without increasing the resistance to the passing airflow,
The purpose is to prevent strong straight airflow from occurring during airflow deflection.

[Structure of the idea]

(Means for Solving the Problems) The present invention provides a louver group 3 for adjusting the wind direction in which a plurality of wind direction louver pieces 5 that are rotatable in the same direction are arranged in parallel in a case body 1 which is open at the front and back. In this wind direction adjustment device in which a plurality of wind direction louver pieces 5 of the louver group 3 are interlocked in the same direction by an interlocking mechanism 8, at least both outer sides of the plurality of wind direction louver pieces 5 of the louver group 3 for wind direction adjustment are provided. Wind direction louver piece 5L,
5R, a guide louver piece 12 is provided in the case body 1 so as to be rotatable in the same direction as the wind direction louver piece 5, and each guide louver piece 12 is rotated in the opposite direction to the wind direction louver piece 5 by a reverse interlocking mechanism 14. It is linked in the direction of.

(Function) The wind direction adjusting device of the present invention has the wind direction louver piece 5 and its rear guide louver piece 12 interlocked in opposite directions by the reverse interlocking mechanism 14, so that when airflow is deflected, the wind direction louver pieces 5L and 5R on both outer sides are interlocked in opposite directions. The airflow is reduced toward the side where the airflow path is gradually narrowed, that is, the airflow deflection side, and the airflow is increased toward the side where the airflow path is gradually widened.

(Embodiment) An embodiment of the wind direction adjusting device of the present invention will be described with reference to FIGS. 1 to 3.

In the description of the embodiment, the same parts as those of the conventional wind direction adjusting device shown in FIG. 4 are given the same reference numerals, and detailed description thereof will be omitted.

Reference numeral 7 designates an operating knob, and the operating knob 7 is provided on the central wind direction louver piece 4 of the louver group 2 for vertical wind direction adjustment so as to be slidable left and right along the length direction of the wind direction louver piece 4. Its rear portion (not shown) is connected to a wind direction louver piece 5 at the center of the louver group 3 for adjusting the wind direction in the left and right directions.

Therefore, when the operating knob 7 is moved in the vertical direction and the central wind direction louver piece 4 of the louver group 2 for vertical wind direction adjustment is rotated in the vertical direction, the wind direction louver piece 4 is rotated in the vertical direction through an interlocking mechanism such as a connecting rod (not shown). The plurality of wind direction louver pieces 4 of the louver group 2 are linked in the same direction and rotated in the vertical direction while remaining parallel, and the operation knob 7 is moved left and right along the wind direction louver pieces 4 to adjust the wind direction in the left and right direction. When the central wind direction louver piece 5 of the louver group 3 is rotated in the left-right direction, the plurality of wind direction louver pieces 5 of the louver group 3 are linked in the same direction and parallel to each other via a connecting rod 8 as an interlocking mechanism to be described later. It is designed to rotate left and right while remaining in the same state.

8 is a connecting rod as an interlocking mechanism, and this connecting rod 8
, one end portion of a plurality of wind direction louver pieces 5 of a louver group 3 for adjusting the wind direction in the left and right direction is connected at a predetermined interval, and the plurality of wind direction louver pieces 5 of this louver group 3
are linked in the same direction. Although not shown, the louver group 2 for adjusting the wind direction in the vertical direction is also provided with a connecting rod similar to the connecting rod 8, and this connecting rod holds one end of the plurality of wind direction louver pieces 4 of the louver group 2 in a predetermined manner. are connected at intervals of

11 is a guide louver group, and this louver group 11 is provided in the case body 1 in relation to the louver group 3 for adjusting the wind direction in the left and right direction,
A rectangular plate-shaped guide louver piece 1 is located at the rear of each of the plurality of wind direction louver pieces 5 of this louver 3.
2 are arranged in parallel so as to be rotatable in the same direction as the wind direction louver piece 5 by fitting the shaft portions 12a protruding from both ends thereof and the hole 1a formed in the case body 1.

One end portion of the plurality of guide louver pieces 12 of this louver group 11 for guides is connected at a predetermined interval via a connecting rod 13 similar to the connecting rod 8, and the plurality of guide louver pieces 12 of this louver group 11 are Piece 1
2 are interlocked in the same direction to rotate left and right while remaining parallel.

In addition, gears 12b, 5a at one ends of the central guide louver piece 12 of the louver group 11 for guiding and the central wind direction louver piece 5 of the louver group 3 for adjusting the wind direction in the horizontal direction are provided with gears 12b, 5a, respectively. 5b
are fixed together, and by meshing these gears 12b and 5b, a reverse interlocking mechanism 14 is constructed between the louver groups 11 and 3, and this reverse interlocking mechanism 14 allows
The louver groups 11 and 3 move in opposite directions, and the guide louver piece 12 and the wind direction louver piece 5 rotate in opposite directions.

Next, the effect will be explained.

As shown in FIG. 3A, when the louver group 3 for adjusting the wind direction in the left and right directions is set in the straight direction at the neutral position, the guide louver group 11 that interlocks with this louver group 3 is also set in the straight direction. , the wind direction louver piece 5 of the louver group 3 and the guide louver piece 12 of the louver group 11 are in a straight line.

Then, by using the operation knob 7, the louver group 3
When the louver group 11 is rotated to the left from the neutral position shown in FIG. 3A as shown in FIG.

Therefore, as the air flow passage between the left inner wall 1L of the case body 1 and the front end of the leftmost wind direction louver piece 5L gradually narrows, the left inner wall 1L of the case body 1 and the leftmost The airflow passage between the rear end of the guide louver piece 12L gradually becomes narrower, and the airflow passage between the inner wall 1L, the wind direction louver piece 5L, and the guide louver piece 12 gradually becomes narrower.
There is almost no airflow passing between L, and no straight airflow is generated on the deflection side of the airflow, in this case the left side.
There is no obstruction to the deflected airflow bent to the left through each wind direction louver piece 5L to 5R,
The airflow deflection effect is not impaired.

On the other hand, as the airflow passage between the right inner wall 1R of the case body 1 and the front end of the rightmost wind direction louver piece 5R gradually becomes wider, The airflow passage between the rear ends of the guide louver pieces 12 gradually becomes wider, and the airflow passing between the inner wall 1R, the wind direction louver pieces 5R, and the guide louver pieces 12R increases, and is collected by the guide louver pieces 12R. Since the airflow is blown out at a high speed and a part of it bends to the left along the wind direction louver piece 5R, the airflow deflection effect by the louver group 3 is helped.

In this way, without increasing the resistance to the ventilating airflow, when deflecting the airflow, a strong straight airflow that obstructs the deflection airflow is not generated, and on the contrary, a strong airflow that helps the airflow deflection is generated, so the wind direction adjustment effect is enhanced. .

Furthermore, when the louver group 3 is rotated to the right as shown in FIG. It has similar effects.

Note that the embodiment of the present invention is not limited to the embodiment described above; for example, the guide louver pieces 12, 12R may only be provided for the wind direction louver pieces 5, 5R on both outer sides of the louver group 3 for adjusting the wind direction. In addition, in the embodiment described above, the guide louver piece 12 is
However, the louver group 2 for adjusting the wind direction in the vertical direction
A guide louver piece may be provided for.

[Effect of idea]

As described above, in the wind direction adjustment device of the present invention, the wind direction louver piece for wind direction adjustment and the guide louver piece at the rear thereof are interlocked in opposite directions by a reverse interlocking mechanism. This reduces the airflow to the side where the airflow passage is gradually narrowed, that is, the airflow deflection side, and increases the airflow to the side where the airflow passage is gradually widened. No airflow occurs;
Conversely, a strong airflow is generated that helps deflect the airflow.
The wind direction adjustment effect is enhanced, and the resistance to the passing airflow does not increase.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the wind direction adjustment device of the present invention, Fig. 2 is a perspective view of a part thereof, and Fig. 3 is a sectional view of the main part to explain its operation. , FIG. 4 is a sectional view of a conventional wind direction adjusting device. 1... Case body, 3... Louver group for adjusting wind direction, 5
...Wind direction louver pieces, 5L, 5R...Both outer wind direction louver pieces, 8...Connection rod as interlocking mechanism, 12, 12
L, 12R...Guide louver piece, 14...Reverse interlocking mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] A louver group for adjusting the wind direction is provided in which a plurality of wind direction louver pieces that can freely rotate in the same direction are arranged in parallel in a case body that is open at the front and back, and the plurality of wind direction louver pieces of this louver group are arranged side by side. In the wind direction adjustment device that is interlocked in the same direction by an interlocking mechanism, a guide louver piece is located in the case body at the rear of at least both outer wind direction louver pieces among the plurality of wind direction louver pieces of the louver group for wind direction adjustment. A wind direction adjusting device characterized in that the guide louver pieces are provided rotatably in the same direction as the wind direction louver pieces, and each guide louver piece is interlocked in the opposite direction to the wind direction louver pieces by a reverse interlocking mechanism.