JP2723527B2 - Wind direction control device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a wind direction control device provided at an outlet of a blower.

2. Description of the Related Art Conventionally, as shown in FIGS. 5 and 6, the configuration of a wind direction control device of this type is such that a rotation center shaft 102 is provided at one end of a wind direction control plate 101 and a rotation center shaft 102 is provided at the other end. A shaft 103 is provided, the rotating shaft 102 is rotatably inserted into a pair of holes 105 provided in the outer frame 104, and the interlocking shaft 103 has a hole 107 in which the right half group is provided on the interlocking rod 106. , The left half group is rotatably inserted into a hole 109 provided in the interlocking rod 108. An electric motor 114 in which a two-stage cam 112 composed of a cam 110 and a cam 111 is attached to a rotating shaft 113 is fixed to the outer frame 104. The cam 111 is provided with two interlocking In contact with the walls 115 and 116, the cam 112 is in contact with two interlocking walls 117 and 118 provided on the interlocking rod 108 so as to face each other. The cam 111 and the cam 112 have a perfect circular shape with the same radius, and the center thereof is the motor 1
Each of the fourteen rotation shafts 113 is eccentric by a distance 1 in a direction opposite to each other by 180 degrees.

In the above configuration, when the electric motor 114 is energized, the two-stage cam 112 rotates, and the cams 110 and 111 are connected to the two interlocking walls 115 and 116 and the interlocking rod 10 provided on the interlocking rod 106, respectively.
8, the interlocking bar 106 and the interlocking bar 108 reciprocate in opposite directions with a stroke twice as long as the eccentric distance l of the cam. And the wind direction control plate 10 inserted in the holes 107 and 109 provided in the interlocking rod 108, respectively.
The interlocking shaft 103 is reciprocated about the rotation center axis 102, and the wind direction control plate 101 is swung in opposite directions in the right half group and the left half group, so that the blown air is directed in the center direction. It was possible to alternately generate a concentrated wind heading and a diffused wind spreading in the left-right direction.

Here, FIG. 7 shows the amount of movement of the interlocking rod with respect to the rotation angle per unit time of the cam 110 and the cam 111, and FIG. 8 shows the change in wind speed at the front center of the outlet. .

Problems to be Solved by the Invention In such a conventional configuration, when there is a person in front of the wind sent from the blower, only a simple change of the intensity is repeated in a monotonous cycle, and the maximum wind speed value and the minimum The time to hold the wind speed value is instantaneous, and the drop is large, so if the maximum wind speed value is set to a value that does not cause a troublesome feeling, the whole will be cool and unsatisfactory, and conversely the whole will be cool and satisfying There is a problem that when the wind speed value is set to a value that can be set, a troublesome feeling occurs at the maximum wind speed.

The present invention is to solve such a problem, and to provide an airflow direction control device that can satisfy a cool sensation by realizing appropriate wind speed control and that can realize air blowing that does not easily cause a troublesome feeling. It is intended for.

Means for Solving the Problems To solve this problem, the present invention provides a plurality of wind direction control plates having a rotation center axis at one end and a rotation center axis and an interlocking axis at the other end, and a rotation center of the wind direction control plate. An outer frame that rotatably supports a shaft, a pair of interlocking rods that rotatably support an interlocking shaft of the wind direction control plate, and that are constantly applied with a pulling force, and rotation of an electric motor fixed to the outer frame. A cam attached to a shaft, the cam having a two-stage structure, each of which rotates in contact with an interlocking wall provided on each of the pair of interlocking rods, and follows the shape of the cam. And a wind direction control device configured to drive the pair of interlocking rods against the pulling force.

Operation With this configuration, the interlocking rod is constantly applied with a pulling force in one direction, and its movement is regulated by the shape of the cam that rotates in contact with the interlocking wall provided on the interlocking rod. Since the driving of the rod is controlled and the wind direction control plate driven by the interlocking rod is controlled, the wind speed value at the front position of the air sent from the blower can be freely controlled by changing the cam shape. .

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, the configuration of the wind direction control device of this embodiment is such that a rotation center shaft 2 is provided at one end of a wind direction change plate 1 and a rotation center shaft 2 and an interlocking shaft 3 are provided at the other end. The rotation center shaft 2 is rotatably supported by a pair of holes 5 provided in the outer frame 4. The interlocking shaft 3 of the right half group toward the wind direction control plate 1 has a hole 7 provided in the interlocking rod 6.
On the other hand, the interlocking shaft 3 of the left half group is rotatably supported by a hole 9 provided in the interlocking rod 8, respectively.
The interlocking rod 6 and the interlocking rod 8 are constantly applied with each other by a spring 10. An electric motor 15 having a two-stage cam 13 comprising a cam 11 and a cam 12
Are fixed, and the cam 11 and the cam 12 are in contact with an interlocking wall 16 provided on the interlocking rod 6 and an interlocking wall 17 provided on the interlocking rod 8, respectively. The cam 11 and the cam 12 have the same shape, are processed in the radial direction based on a perfect circle, and are fixed at positions shifted from each other by 180 degrees with respect to the rotation direction.

In the above configuration, when the electric motor 15 is energized, the two-stage cam
13 rotates, and the cam 11 and the cam 12 rotate.
Since the interlocking rod 6 and the interlocking rod 8 are constantly tensioned by the spring 10, the interlocking wall 16 and the interlocking wall 17 are pressed against the cams 11 and 12, respectively. As it rotates, it reciprocates along the cam shape. Then, the interlocking shaft 3 of the wind direction control plate 1 inserted into the holes 7 and 9 provided in the interlocking rods 6 and 8 respectively reciprocates around the rotation center axis 2 to swing the wind direction control plate 1. Will be. Since the cam 11 and the cam 12 have the same shape and are fixed at positions shifted from each other by 180 degrees with respect to the rotation direction, the wind direction control plates 1 are oppositely symmetrical in the right half group and the left half group, that is, symmetrically. Will swing.

Here, FIG. 3 shows the movement amount of the interlocking rod 6 and the interlocking rod 8 with respect to the rotation angle per unit time of the cam 11 and the cam 12, and FIG. 4 shows the change in the wind speed at the front center of the outlet. It is shown. As is clear from the figure, by controlling the movement of the wind direction control plate by the shape of the cam, the rate of change of the wind speed value is adjusted, and the holding time of a predetermined wind speed value including the maximum wind speed value and the minimum wind speed value is controlled. Adjustment is possible.

As is clear from the above description of the embodiment, according to the present invention, the movement of the wind direction control plate is controlled by the cam shape, and the rate of change of the wind speed value is adjusted, including the maximum wind speed value and the maximum wind speed value. In addition, by enabling the adjustment of the holding time of a certain predetermined wind speed value, it is possible to obtain an effect that it is possible to satisfy the cooling sensation and to realize the blowing that does not easily cause a troublesome feeling.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a wind direction control device according to an embodiment of the present invention,
FIG. 2 is a partially cutaway front view of the wind direction control device, FIG. 3 is a diagram showing a movement amount of an interlocking rod with respect to a rotation angle of a cam per unit time in the wind direction control device, and FIG. FIG. 5 is a sectional side view of a conventional wind direction control device, FIG. 6 is a partially cutaway front view of the wind direction control device, and FIG. FIG. 8 is a diagram showing a movement amount of the interlocking rod with respect to a rotation angle per unit time, and FIG. 8 is a diagram showing a change in wind speed by the wind direction control device. 1 ... wind direction control plate, 2 ... rotation center axis, 3 ... interlocking axis,
4 ... Outer frame, 6,8 ... Link rod, 11,12 ... Cam, 13 ... Dual cam, 15 ... Electric motor, 16,17 ... Link wall.

Claims (1)

(57) [Claims] 1. A plurality of wind direction control plates having a rotation center axis at one end and a rotation center axis and an interlocking axis at the other end, an outer frame rotatably supporting the rotation center axis of the wind direction control plate, and the wind direction. The cam includes a pair of interlocking rods that rotatably support an interlocking shaft of the control plate and are constantly applied with a pulling force to each other, and a cam mounted on a rotating shaft of an electric motor fixed to the outer frame. Has a two-stage structure, each of which rotates in contact with an interlocking wall provided on each of the pair of interlocking rods, and repels the pair of interlocking rods with a tensile force along the shape of the cam. A wind direction control device that is driven.