JPS587232Y2 - Air conditioner wind direction change device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a wind direction changing device in an air conditioner, and one of its objects is to make it possible to obtain a stable wind direction changing effect even during long-term use.

Conventionally, the wind direction changing device in this type of air conditioner was
As shown in FIGS. 6 and 7, a gear wheel is provided on the wind direction changing blade a provided at the air outlet, and a leaf spring C is fixed to the side wall of the air outlet so as to match the curved surface of the gear wheel. The elastic force that tends to stretch causes the leaf spring C to come into close contact with the gear, and this frictional force allows the wind direction changing blade a to move freely and to be able to stop at any angle.

However, since the leaf spring C is made of metal, there are large dimensional errors after molding, and the leaf spring C may not adhere to the gear as set, or the elastic force of the leaf spring C may become weak after long periods of use. As a result, the degree of adhesion between the gear and the leaf spring C deteriorates.

As a result, even if an attempt was made to fix the wind direction changing blade a at a fixed angle, the gear wheel would slip on the leaf spring C, making it impossible to fix it.

The present invention eliminates the drawbacks of the conventional wind direction changing devices mentioned above.

As a configuration for this purpose, the present invention provides a blower outlet formed in the main body of the air conditioner with blades that can rotate freely around a rotating shaft to change the direction of air flow and air from the blower outlet, and one end of the rotating shaft. An arm having one end fixed to the rotating shaft, and a rotating member consisting of a friction surface having a moderately curved surface protruding in the axial direction at the other end of the arm are provided, and a rotating member is provided at a predetermined angle so as to sandwich the friction surface. A pair of radially protruding support pieces and a fixing member that bridges both support pieces and have an elastic surface curved to the same extent as the curved surface of the friction surface are provided, and the fixing member is connected to the friction surface. and the elastic surface are attached to the side wall of the outlet so that the elastic surfaces are in contact with each other with appropriate pressure, the rotating member and the fixed member are each formed of a synthetic resin, and the friction surface and the elastic surface have a large number of protrusions that fit into each other. It was established.

Hereinafter, FIGS. 1 to 5 of the drawings showing one embodiment of the present invention will be described.
The explanation will be explained with reference to the figure.

In FIG. 1, A is the air conditioner main body, which has an inlet 1 and an outlet 2 on the front, and has a heat exchanger 3 and a blower 4 inside as well known.

Reference numeral 5 denotes a wind direction changing device provided at the air outlet 2, which includes a blade 6 rotatably supported in the longitudinal direction of the air outlet 2, a rotating shaft 7 of the blade 6, and a wind direction changing device that is integrated with the rotating shaft 7. It is composed of a rotary member B made of synthetic resin, a fixed member C fixed to the side wall 9 of the air outlet 2, and a stopper 10 provided on the side wall of the air outlet 2.

The rotating member B includes an arm 8 fixed to the rotating shaft 7, a protrusion 12 that determines the maximum and minimum rotation angle of the tool 6 with a stopper 10, and a protrusion 12 at one end of the arm 8 in the direction of the rotating shaft. Friction surface 13 that protrudes and has a moderately curved surface
It is composed of.

This friction surface 13 is provided with a large number of protrusions 13a extending in the direction of the rotating shaft 7.

The fixing member C includes a fixing portion 11 fixed to the side wall 9 with a screw, two elastic support pieces 14 that protrude to sandwich the friction surface 13, and a bridge between the two support pieces 14. The arm 8 is provided with an elastic surface 15 having elasticity and in contact with the friction surface 13 of the arm 8 with pressure.

This elastic surface 15 is provided with a large number of parallel grooves (not shown) that fit into the protrusions 13a of the friction surface 13.

The arm 8 of the rotating member B, the friction surface 13, the protrusion 12,
and the fixing member 11 of the fixing member C, two support pieces 14,
Both elastic surfaces 15 are integrally molded from synthetic resin.

In the above configuration, when the friction surface 13 moves, the elastic surface 15 is pulled upward and the two support pieces 14 are spread laterally.

As a result, the unique elastic force of the resin acts, and the rotating member B and fixed member C are fixed unless the blade 6 is moved.
The wing 6 remains fixed in one direction.

Further, the range of movement of the blade 6 is limited by the protrusion 12 of the rotating member B and the stopper 10.

Furthermore, the direction of the blade 6 is determined so that it rotates from horizontal to downward, and the angle between them can be selected by the protrusion 13a of the friction surface 13 and the groove provided in the elastic surface 15. .

Therefore, the wear of the friction surface 13 and the elastic surface 15 is significantly reduced, abnormal temperatures during operation are eliminated, the operation is easy, the fixing force is increased, and excessive movement of the blade 6 can be eliminated.

The wind direction changing device having the above configuration can be used either as a forced type that forcibly changes the wind direction or as a well-known fluid element type that changes the wind direction using a fluid attraction phenomenon.

Since the rotation of the changing blade is controlled by friction between the elastic surface of the synthetic resin and the friction part of the synthetic resin, there is less wear compared to conventional friction between metal and synthetic resin, resulting in a longer service life. In addition, stable contact between the friction part and the elastic surface can be obtained even over a long period of time, and since the friction part is sandwiched between a pair of support pieces, the rotation angle of the friction part, that is, the changing blade, can be regulated to fix the changing blade. This structure has various advantages, such as simplifying the structure and preventing the blowout distribution ratio from decreasing due to extreme angle changing operations of the changing blades.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an air conditioner equipped with a wind direction changing device according to an embodiment of the present invention, Fig. 2 is a front view of the air conditioner, and Fig. 3 is a schematic diagram taken along line I-I in Fig. 2. A cross-sectional view, and Figure 4 is a side cross-sectional view showing the state in which the wind direction changing device is installed.
5 is a sectional view taken along the line II--II in FIG. 4, FIG. 6 is a side view of a conventional wind direction changing device, and FIG. 7 is a sectional view taken along the line III--III in FIG. 6. 2...Air outlet, 5...Wind direction changing device, 6...Blade, 7...Rotation shaft, 8...
...Arm, 9...Side wall, 13...
Friction surface, 13a... Protrusion, 14... Support piece, 15... Elastic surface, A... Air conditioner body, B...・Rotating member, C...Fixed member.

Claims (1)

[Scope of utility model registration request] The air outlet formed in the main body of the air conditioner is equipped with blades that can freely rotate around the rotation axis to change the direction of air blowing from the outlet.
A rotating member is provided at one end of the rotating shaft, the arm having one end fixed to the rotating shaft, and the other end of the arm having a friction surface having a moderately curved surface protruding in the axial direction, and further sandwiching the friction surface. A pair of supporting pieces protrudes radially at a predetermined angle, and a fixing member is provided bridgingly between the two supporting pieces and has an elastic surface curved to the same degree as the curved surface of the friction surface, and the fixing member is , the friction surface and the elastic surface are attached to the side wall of the outlet so that they are in contact with appropriate pressure, the rotating member and the fixed member are each made of synthetic resin, and the friction surface and the elastic surface have a large number of protrusions that fit into each other. A device to change the wind direction of the installed air conditioner.