JPH0731075Y2 - Two-blade opposed diffuser - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diffuser in which the direction and flow rate of airflow can be freely adjusted at the tip of a duct such as an air conditioner / blower.

[0002]

2. Description of the Related Art As a line type diffuser at the tip of a duct of an air conditioner, a blower or the like, a plurality of flat plate-shaped or umbrella-shaped blades are installed so as to be swingable in parallel.

[0003]

In the conventional line type diffuser described above, it was possible to adjust the direction of the air flow by directing its blades in a desired direction, but the air flow rate can be adjusted by the main body of the air conditioner. The air flow rate must be adjusted or the air flow rate must be adjusted for each room in a building or the like, and a separate air flow rate adjustment mechanism must be provided for each diffuser in the room.

Further, when the flat blades are used for adjusting the wind direction as in the conventional case, the strength tends to be insufficient in a long line diffuser or the like, and vibration due to the air flow may cause noise.

In order to solve the above-mentioned problems, an object of the present invention is to provide an air conditioner / blower, etc. in which the blowing direction and the blowing amount can be freely adjusted with a simple structure, and the vibration resistance of the blades is improved. To provide a diffuser.

[0006]

Means for Solving the Problems The gist of the present invention, which has solved the above problems, is to provide two blades, which are bent in opposite directions, between inner wall surfaces facing each other of a duct tip of an air conditioner, a blower or the like. Are supported by both side edges so that they can swing freely within the range of a closed state in which they bulge and a open state in which the tip is opened to block the air passage, and the two blades are respectively desired. In the two-blade opposed type diffuser, a blade fixing means is provided so that the diffuser can be fixed at the position.

[0007]

In the diffuser of the air conditioner / blower according to the present invention, two blades are swingably supported on the shaft installed at the tip of the duct of the air conditioner / blower. And
The blades are bent in opposite directions, and at a desired position between a closed state in which the tips are swollen like water droplets and an open state in which they are separated from each other to block the air passage. Can be fixed.

Therefore, when the two blades are closed, the air flow blown from the duct is blown along the outside of the blade without being disturbed so much. On the contrary, if the two blades are opened, the ventilation path is blocked and the air blow is stopped. Further, by fixing the blades at arbitrary positions during the closed state and the open state, the direction of the air flow and the blown air amount can be arbitrarily set.

Further, in the diffuser of the present invention, by bending the blade, the strength is improved as compared with the flat blade having a flat plate shape so that the blade does not vibrate due to the air flow.

[0010]

Embodiments will be described with reference to the following drawings. 1 is a side sectional view of the embodiment, FIG. 2 is an enlarged side sectional view showing an essential part of the embodiment, FIG. 3 is an enlarged front sectional view showing an essential part of the embodiment, and FIGS. FIG.

In the figure, 1 is a duct (chamber), 2 is a fitting, 3 is a frame material (casing), 4 is a support shaft projecting inside the frame material, 5 is a first blade, and 6 is a second blade. Is.
The first blade 5 and the second blade 6 are bent in opposite directions to each other. In addition, a cylindrical portion 8 forming a support hole 7 is provided at the base of the first blade 5, and when the support shaft 4 is fitted, the outer diameter of the support shaft 4 and the support hole 4 are fixed so that the support shaft 4 can be fixed at a desired swing position. The degree of fitting of 7 inner diameters is set.

The second blade 6 is a cylindrical portion 8 of the first blade 5.
The C-shaped support portion 9 is attached to the outer periphery so as to be swingable. Then, an appropriate frictional force is generated by adjusting the fitting degree between the inner diameter of the support portion 9 of the second blade 6 and the outer diameter of the cylindrical portion 8 of the first blade 5, and the frictional force causes the second blade 6 to move to a desired position. It can be fixed with.

The above-mentioned usage state will be described with reference to FIGS. 4 to 6 show changes in the air flow rate when the air flow direction is vertical. Further, as shown in FIGS. 7 to 9, it is also possible to adjust the air flow rate in a state where both the first blade 5 and the second blade 6 are brought close to one side of the ventilation path. In this case, the airflow flows along the outer diameter curved surface of the second blade 6 and can be blown leftward in the drawing. Of course, contrary to the examples of FIGS. 7 to 9, if the second blade 6 is closely attached to the frame member 3, the air can be blown to the right in the drawings.

The present invention is not limited to the above-mentioned embodiment, but the supporting structure and fixing means of each blade may be appropriate, and as shown in FIGS. 10 and 11, the inner cylindrical portion 8 of the first blade 5 is shown.
The opening 10 is provided in the ball 1 with the spring 12
The second blade 6 can also be fixed by pressing 1 to the inner peripheral surface of the support portion 9 of the second blade 6.

[0015]

As described above, according to the present invention, the blowing direction and the blowing amount can be freely adjusted with a very simple structure. Moreover, since the tip of the blade is bent, it has higher strength than the flat blade and is less likely to be twisted.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment.

FIG. 2 is an enlarged side sectional view showing a main part of the embodiment.

FIG. 3 is an enlarged front sectional view showing a main part of the embodiment.

FIG. 4 is an explanatory diagram showing a usage state of the embodiment.

FIG. 5 is an explanatory diagram showing a usage state of the embodiment.

FIG. 6 is an explanatory diagram showing a usage state of the embodiment.

FIG. 7 is an explanatory diagram showing a usage state of the embodiment.

FIG. 8 is an explanatory diagram showing a usage state of the embodiment.

FIG. 9 is an explanatory diagram showing a usage state of the embodiment.

FIG. 10 is a side sectional view showing another embodiment.

FIG. 11 is a front cross-sectional view showing the main parts of another embodiment.

[Explanation of symbols]

 1 Duct 2 Mounting Bracket 3 Frame Material 4 Support Shaft 5 First Blade 6 Second Blade 7 Support Hole 8 Cylindrical Section 9 Support Section 10 Opening Section 11 Ball 12 Spring

Claims (1)

[Scope of utility model registration request] 1. A closed state in which two blades are bent in opposite directions to each other between opposing inner side walls of a duct end of an air conditioner, a blower, etc., to close a closed state and a ventilation path. The blades are supported by both side edges so as to be swingable within the range of the open state where the tips are separated, and the blade fixing means is provided so that the two blades can be fixed at desired positions. A two-blade opposed diffuser featuring.