JPH09196454A - Quantity-of-air adjuster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a quantity-of-air adjuster which can reduce the number of parts, the man-hours in assembly, and material cost. SOLUTION: A frame 4 in the shape of a rectangular parallelepiped whose bottom is open to receive a duct connection 2 is provided with a quantity-of-air adjusting plate 6 which is made integrally being cut off in a circular form, leaving plastically transformable coupling parts 5 at right and left. Because the quantity-of-air adjusting plate 6 is made in a body with the frame 4 b the coupling part 5, the number of parts, the man-hours in assembly, and material cost can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air volume adjusting device provided with an air volume adjusting plate for freely adjusting the opening area of a ventilation passage.

[0002]

2. Description of the Related Art In recent years, an air volume adjusting device provided at an air outlet or an air inlet provided on the indoor side of an air conditioner or a ventilation device is required to have a simple structure and to easily adjust the air amount. Has been.

Conventionally, this type of air volume adjusting device is shown in FIGS.
As shown in FIG. 3, a rectangular parallelepiped frame body 104 having an air passage 102 that serves as an air passage to the duct 101 and a ventilation opening 103 that serves as a room air passage, and a duct connection provided in the air passage 102 of the frame body 104. Line type ventilation port 1 consisting of part 105
In the air passage 102 of the frame 104 of No. 06, one plate having an outer peripheral dimension smaller than the inner peripheral dimension of the air passage 102, and one from the center of the convex piece 107 protruding outward from the peripheral edges of both ends of the plate to the other Concave part 108 and convex part 1 up to almost the center of convex piece 107 of
The air flow rate adjusting plate 111, which is provided with the slits 110 having a shape in which 9 and 9 are alternately arranged, is fixed by the screw 112, and the convex piece 1
The air volume adjusting plate 111 is held in an arbitrary inclined state by the plastic deformation of 07, and the opening area of the ventilation path 102 is adjusted.

[0004]

The air volume adjusting plate 111 in such a conventional air volume adjusting device has a screw 112, a rivet or the like on the periphery of the ventilation passage 102 provided in the frame body 104 forming the line type ventilation port 106. It had to be fixed in place, which required a number of parts, assembly man-hours, and material costs.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an air volume adjusting device capable of reducing the number of parts, the number of assembling steps, and the material cost.

[0006]

In the air volume adjusting device of the present invention, a rectangular parallelepiped frame body having a ventilation opening on the lower surface to which a duct connecting portion is attached, has a plastically deformable connecting portion left and right, and a circular shape. The air volume control plate cut out in a shape and integrally formed is rotated to adjust the air volume of the ventilation passage.

According to the present invention, since the air volume adjusting plate is formed integrally with the frame body, there is no need to fix the air volume adjusting plate with screws or rivets, and the number of parts, the number of assembling steps, and the material cost are reduced. Can be reduced.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is a rectangular frame-shaped duct connecting portion in which the connecting side of the duct is formed into a cylinder, and a ventilation port is opened in the lower surface to which this duct connecting portion is attached. A rectangular parallelepiped shaped frame body, and a left and right plastically deformable connecting portion left in the frame body, and an air volume adjusting plate integrally formed by being cut out in a circular shape, and the air volume adjusting plate is connected via the connecting portion. It is configured to adjust the air volume by rotating so as to project into the duct connection part and the frame body.The air volume adjustment plate is integrally connected to the frame body by the connection part, and the air volume adjustment plate is connected to the frame. It is not necessary to fix it to the body with screws, rivets, etc., and the air volume adjusting plate has the effect of rotating by the plastic deformation of the connecting portion to adjust the air volume.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. (Embodiment 1) As shown in FIGS. 1 and 2, a rectangular frame-shaped duct connecting portion 2 in which the connecting side of the duct 1 is formed into a cylinder.
A rectangular parallelepiped frame body 4 having a ventilation port 3 opened is provided on the lower surface to which is attached, the frame body 4 is left with left and right plastically deformable coupling portions 5, and a circularly cut air volume adjusting plate 6 is integrally formed. And the ventilation passage 7 communicating with the duct connecting portion 2 is formed in the frame body 4 by the rotation of the air volume adjusting plate 6.

In the above structure, when the air volume adjusting plate 6 is pivoted in a substantially horizontal state so as to project into the duct connecting portion 2 and the frame body 4 through the connecting portion 5, the air passage 7 is opened, and the duct 1 is opened. The air sent into the ventilation path 7 through the duct connection part 2 is sent into the frame body 4 from above and below the air volume adjusting plate 6 and is diffused from the ventilation port 3.

As described above, according to the air volume adjusting device of the first embodiment of the present invention, since the air volume adjusting plate 6 is formed integrally with the frame body 4, the number of parts, the number of assembling steps, and the material cost are reduced. be able to.

(Second Embodiment) A second embodiment will be described below with reference to FIGS. 3 and 4. The same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in the figure, the air volume adjusting plate 6A is attached to the frame body 4.
One side is formed into a semi-circular shaped portion 6a and the other side is formed into a square shaped portion 6b with the connecting portion 5A formed between A and A as the boundary, and the square shaped portion 6b side of the air volume adjusting plate 6A is inside the frame body 4A. The ventilation path 7 is formed by pivoting in a substantially horizontal state via the connecting portion 5A so as to project.

In the above structure, when the air is blown out from the ventilation port 3, the air flowing in from the ventilation passage 7 is the air volume adjusting plate 6A.
The air that is divided into the upper and lower parts by the lower part and flows in from the lower part is provided with the side wall 4a facing the air passage 7 in the frame 4A and the air volume adjusting plate 6
The air blown from the central part of the ventilation port 3 by the rectangular portion 6b of A and the air flowing in from the upper portion is stored inside the frame body 4A by the side wall 4a of the air passage 7 in the frame body 4A and the rectangular portion 6b of the air volume adjusting plate 6A. It can be divided into both ends and blown out from both ends of the ventilation port 3 and blown out from the entire ventilation port 3.

As described above, according to the air volume control device of the second embodiment of the present invention, the air blows out from the entire ventilation port 3, so that the draft feeling given to the human body can be eliminated.

In the second embodiment, the air volume adjusting plate 6A
Was adjusted to the position where the opening area of the air passage 7 was maximized.
Adjusting to any position does not make a difference in its action and effect.

[0017]

As described above, according to the present invention, it is possible to provide the air volume adjusting device which can reduce the number of parts, the number of assembling steps, and the material cost by forming the air volume adjusting plate integrally with the frame.

Further, one side of the air flow rate adjusting plate is formed in a semi-circular shape and the other side is formed in a rectangular shape with the connecting portion as a boundary, and the square side of the air flow rate adjusting plate is projected into the frame body so that the air is ventilated. It will be blown out from the whole, and the feeling of draft given to the human body can be eliminated.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an air volume adjusting device according to a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the air volume adjusting device according to the first embodiment.

FIG. 3 is a cross-sectional view of the air volume adjusting device according to the second embodiment.

FIG. 4 is a vertical cross-sectional view of the air volume adjusting device according to the second embodiment.

FIG. 5 is a perspective view of an air volume adjusting plate of a conventional air volume adjusting device.

FIG. 6 is a cross-sectional view of the air volume adjusting device.

FIG. 7 is a vertical cross-sectional view of the air volume adjusting device.

[Explanation of symbols]

 1 duct 2 duct connection part 3 ventilation port 4 frame body 4A frame body 5 connection part 5A connection part 6 air volume adjustment plate 6A air volume adjustment plate 6a semi-circular shaped part 6b square shaped part 7 air passage

Claims (2)

[Claims] 1. A rectangular frame-shaped duct connecting portion in which a connecting side of a duct is formed in a cylinder, a rectangular parallelepiped frame body having a ventilation port opened on a lower surface to which the duct connecting portion is attached, and the left and right sides of the frame body. And an air volume control plate that is integrally formed by cutting out in a circular shape leaving a plastically deformable connection portion, and rotating the air volume control plate so as to project into the duct connection portion and the frame body through the connection portion. An air volume adjusting device configured to adjust the air volume passing through the air passage. 2. The air flow rate control device according to claim 1, wherein one of the air flow rate control plates is formed in a semicircular shape and the other is formed in a rectangular shape with the connecting portion as a boundary, and the square side of the air flow rate control plate is projected into the frame body. Adjustment device.