JPS644031Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a connecting duct device connected to an air conditioner body of an automobile or the like.

(Prior art) As shown in Fig. 1, a conventional air conditioner has a plurality of wind direction adjusting blades 1 arranged in parallel at predetermined intervals, one end of which is connected integrally by a connecting rod 2 via a thin hinge 1a, and each Protruding shaft 1 at the top and bottom center of the wind direction adjustment blade
b is rotatably supported on the housing 3, and the housing 3 is placed in the outer frame 4, and its both side protruding shafts 3a are rotatably supported in the shaft holes 4a of the outer frame 4, and the outer side of the outer frame 4 is Since the connecting duct 5 was fitted and fixed to the inner surface of the connecting duct 5, the winds A and B near the inner surface of the connecting duct 5 collide with the outer frame 4 and the housing 3 and become turbulent, resulting in large ventilation resistance. When the knob 6 fixed to the wind direction adjustment vane 1 is pushed to the right to change the wind direction of each wind direction adjustment vane 1 to direction A, the wind A flows straight regardless of the change in wind direction, and the wind D in the center is the direction of the wind direction adjustment vane 1.
The air flows in the direction A along the lines E and F, but there is a problem in that the wind that should normally be directed in the direction A is bent in the direction B due to the influence of the parts E and F, resulting in a decrease in blowing efficiency.

Furthermore, as shown in Utility Model No. 9-6665, there is a well-known ventilation air blowing pipe in which the amount of air is adjusted by changing the inclination angle of a pair of door plates, but the lattice plates are fixed, and the air is always directed from the center. There was a problem in that the wind was only sprayed forward and the direction of the wind could not be changed freely.

(Purpose) The purpose of the present invention is to allow all the wind to be guided in the direction along the wind direction adjustment blade and blown out far when the direction of the wind direction adjustment blade is changed.

(Means for solving the problem) In order to achieve the above-mentioned object, the present invention narrows the tip end of the connecting duct connected to the air conditioner main body inward to form a tapered ventilation passage, and the tip opening is connected to the tip opening. An annular frame with a larger diameter is integrally connected, and an outer frame that pivotally supports a housing to which a wind direction adjustment blade is attached is fitted and fixed to the annular frame, and the tapered inner surface of the passage allows the direction of the wind direction adjustment blade to be adjusted to the left or right to the maximum. It is characterized by being made so that it matches the surface of the wind direction adjusting blade when it is changed to

Hereinafter, a detailed explanation will be given based on the illustrated embodiment. 3 to 6 show a first embodiment of the present invention. Reference numeral 10 denotes a connecting duct connected to the main body of the air conditioner, which narrows the tip of the cylindrical ventilation passage 10d inward to form a tapered ventilation passage 10c, and bends the tip opening 10b outward to form a tapered ventilation passage 10c. A large-diameter annular frame portion 10a is integrally arranged, and the protruding shafts 3a on both sides of the housing 3 to which the wind direction adjusting blades 1 are attached are rotatably supported in the shaft holes 4a of the outer frame 4. It is fitted and fixed to the annular frame portion 10a.

Next, the effect will be explained. When the wind direction is not adjusted, the wind direction adjustment blade 1 is straight as shown in FIG.
b, and all of the air is blown straight forward from the connecting duct 10 along the outer wind direction adjusting blade 1 without hitting the outer frame 4 or the housing 3. Next, when the knob 6 is moved to the right and the wind direction adjustment blade 1 is directed in the direction C, the air near the inner surface of the connecting duct 10 reaches the tip opening 10b along the slope of the tapered ventilation passage 10c as shown in A, and reaches the outer frame. 4 and housing 3
On the left side without hitting the wind direction adjustment blade 1
It is blown out in the C direction along the right side, and once it collides with the wind direction adjustment blade 1 on the right side, it is blown out in the C direction.
All the air from the connecting duct 10 is blown out in the C direction.

FIG. 7 shows a second embodiment of the present invention, in which the connecting duct 1
The annular frame portion 11a of No. 1 is fitted and fixed to the rear outer surface of the outer frame 4, and is squeezed inwardly behind the outer frame 4 to open the tip opening 1.
1b, and furthermore, the tip opening 11b is closely opposed to the rear end surface of the housing 3 protruding forward, and the tip opening 1
A tapered ventilation passage 11c is formed that gradually widens from 1b toward the rear, and the end portion is a straight pipe 11d. 12 is a cylindrical connecting duct with a large diameter portion 12 at the tip.
a is fitted and fixed to the outer surface of the straight pipe 11d. The operation is similar to that of the first embodiment.

Note that the tapered ventilation passage 10 of the connection ducts 10 and 11
c and 11c may be either straight or curved as long as they can rectify the flow of wind. As mentioned above, tip opening 1
If 1b is made to protrude forward as shown in FIG. 7, the dead space can be reduced and the rectification effect will be further improved. Further, if the connecting duct 11 having the tip end 11b and the cylindrical connecting duct 12 are configured separately, there is an advantage that the connecting duct 11 can be easily manufactured.

(Effects) According to the present invention, the tip of the connecting duct connected to the air conditioner body is narrowed inward to form a tapered ventilation path.
An annular frame portion having a larger diameter than the tip port is integrally connected to the tip opening, and an outer frame that pivotally supports a housing to which a wind direction adjustment blade is attached is fitted and fixed to the annular frame portion, and the inner surface of the tapered passage adjusts the wind direction. Since the direction of the blade is made to match the surface of the wind direction adjustment blade when the direction of the blade is changed to the maximum left or right, the wind from the connecting duct does not hit the housing or the outer frame, but directly hits the wind direction adjustment blade. All of the wind is guided in the direction of the wind direction adjustment blades and blown far away.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the conventional device when the wind direction is not adjusted, Fig. 2 is a cross-sectional view of the conventional device when the wind direction is not adjusted, Fig. 3 is a perspective view of the first embodiment of the present invention when the wind direction is not adjusted, Fig. 4 is a sectional view taken along line A-A in Figure 3, and Figure 5 is a cross-sectional view taken along line B in Figure 3.
-B cross-sectional view, FIG. 6 is a cross-sectional view of the first embodiment of the present invention when the wind direction is adjusted, and FIG. 7 is a cross-sectional view of the second embodiment of the present invention when the wind direction is not adjusted. 1...Wind direction adjustment blade, 3...Housing, 4...
...Outer frame, 10, 11... Connection duct, 10a, 1
1a... Annular frame portion, 10b, 11b... Tip opening,
10c, 11c...Tapered ventilation passage.

Claims (1)

[Scope of utility model registration request] The tip of the connecting duct connected to the air conditioner body is narrowed inward to form a tapered ventilation passage, and an annular frame with a diameter larger than the tip is integrally connected to the tip opening, and a wind direction adjustment blade is attached. Connection of an air conditioner in which an outer frame that pivotally supports the housing is fitted and fixed to the annular frame part so that the inner surface of the tapered passage matches the surface of the wind direction adjustment blade when the direction of the wind direction adjustment blade is changed to the maximum left or right. Duct equipment.