JPH078976Y2 - Air duct - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (1) Field of Industrial Application The present invention relates to an air duct and, in particular, a plurality of air outlets interconnected by interlocking links between opposing walls of the duct body. The present invention relates to improvement of an air duct in which a direction changing fin is rotatably attached.

(2) Related Art Conventionally, as this type of air duct, there is known an air duct in which a relatively large window is formed in one of the opposing walls of the duct body, and the fins are attached using the window. .

(3) Problem to be Solved by the Invention However, when a window is formed in the duct body, there is a problem that the strength of the window peripheral portion of the duct body is reduced.

An object of the present invention is to provide the air duct that can solve the above problems.

B. Configuration of the Invention (1) Means for Solving the Problems The present invention enables a plurality of air blowing direction changing fins, which are mutually connected by interlocking links, between mutually facing opposing walls of a duct body. In the attached air duct, a plurality of elongated holes through which the fins can be inserted from the inside of the duct body when the fins are attached are provided in the one opposing wall, and the other opposing wall is fitted with one mounting shaft portion of each fin. A plurality of mounting holes for forming the plurality of mounting holes, and a plurality of mounting holes that are fitted to the outer surface of the duct body and close the respective long holes are provided with a plurality of mounting holes that fit with the other mounting shaft portion of each fin. .

(2) Operation With the above-described structure, when mounting each fin, each slot is used to obtain the same good workability as when using the conventional window.

Further, since there is a connecting portion, which is a part of the facing wall, between the two adjacent long holes, the decrease in strength of the duct body is suppressed.

(3) Embodiment In FIGS. 1 to 3, a plurality of air blowing direction changing first and second fins 3 ₁ , 3 ₂ are rotatably provided in a rectangular duct body 2 of an air duct 1. The duct body 2 and the fins 3 ₁ and 3 ₂ are made of synthetic resin.
The plurality of first fins 3 ₁ existing on the air outlet 4 side of the duct body 2 are horizontally arranged to change the vertical direction,
The second fin 3 ₂ multiple existing on the air inlet 5 side is vertically disposed in order to change the lateral direction.

Third, as best shown in FIG., Each of the first fin 3 ₁ has a substantially rectangular, each mounting shaft portion long side end portions of the one
6 ₁ and 6 ₂ , and also has a connecting shaft portion 7 adjacent to one of the mounting shaft portions 6 ₁ . The connecting shafts 7 of the first fins 3 ₁ are connected to each other by an interlocking link 8, and the first fins 3 ₁ rotate in the same direction via the interlocking link 8.

Left and right side walls as opposing walls of the duct body 2 facing each other
In each of the reference numerals 9 ₁ and 9 ₂ , a plurality of mounting holes 10 are formed on the right side wall 9 _{1 so as} to fit with the mounting shaft portions 6 _{1 of} the first fins 3 ₁ on the coupling link 8 coupling side, and Each mounting hole 10 on the left side wall 9 ₂
A plurality of elongated holes 11 are formed so as to oppose to.

Opposite to the respective first fin 3 ₁ of interlocking links 8 connecting side, fourth
As shown in FIG. 4A, the air outlet 4 of the duct main body 2, and hence the duct main body 2, is inserted into each of the long holes 11, and then one of the interlocking links 8 is connected as shown in FIG. 4B. each mounting shaft portion ₆₁ is fitted into the mounting holes 10 of the.

_{On the} outer surface of the left side wall 92 of the duct body 2, a shallow recess 12 is formed by opening each elongated hole 11, and a synthetic resin cover 13 for closing each elongated hole 11 is joined in the recess 12. The cover 13 is the third
Figure, Figure 4 with a plurality of projections 14 to be fitted in each of the elongated holes 11 so as to explicitly (c), the other mounting shaft portion 6 ₂ of each of the protrusions first 14 are formed each fin 3 ₁ It has a plurality of mounting holes 15 for fitting with.

In the connecting portion 16 between the two long holes 11 adjacent to each other, small protrusions 17 are projectingly provided at the two positions, and each small protrusion 17 is a stopper hole of the cover 13.
Fitted in 18. The tip of each small projection 17 protruding from each stop hole 18 is crushed under heating, whereby the cover 13 is joined to the duct body 2.

With the configuration as described above, per the mounting of each first fin 3 _1, by using the respective slots 11, good workability as in the case of using the conventional window is obtained.

The phase Tonariru between both the long hole 11, resides the connecting portion 16 which is part of the left side wall 9 _2, and because fitting the respective protruding portions 14 of the cover 13 to the elongated holes 11, the duct body 2 Is suppressed.

Furthermore, the cover is provided via each small protrusion 17 present in the connecting portion 16.
Since the duct 13 is joined to the duct body 2, the workability of joining the cover 13 is good and the joining strength is relatively high as compared with the conventional case where the edge of the cover is attached to the edge of the window.

Each second fin 3 _2, over the duct body 2, pivotally attached to the bottom wall 19 _1, 19 _2, the upper wall 19 ₁ is hit on its mounting
A plurality of grooves existing on the inner surface and opening to the end surface of the air introduction port 5 are used.

Operating knob 20 to that existing in the central portion of the plurality of first fins 3 ₁ is fixed, the first due to the operation knob 20, the second fin 3 _1, 3 ₂ is operated to rotate. In FIG. 2, 21 is the second
This is an interlocking link of fins 3 ₂ .

C. Effect of the Invention According to the present invention, it is possible to provide an air duct which has good workability of attaching fins and which can suppress a decrease in strength of the duct body due to attachment of the fins.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a perspective view, and FIG.
Fig. 1 is a sectional view taken along the line II-II in Fig. 1, Fig. 3 is an exploded perspective view, and Fig. 4
The figure is an illustration of the fin installation work. 2 …… Duct body, 3 ₁ …… 1st fin, 6 ₁ , 6 ₂ …… Mounting shaft, 8 …… Interlocking link, 9 ₁ , 9 ₂ …… Left, right side wall (opposing wall), 10 …… Mounting hole, 11 ... Oval hole, 13 ... Cover, 15 ...
... Mounting holes

Claims (1)

[Scope of utility model registration request] 1. A plurality of air blowing direction changing fins (3 ₁ ) interconnected by interlocking links (8) between opposing walls (9 ₁ , 9 ₂ ) of the duct body (2) facing each other. In the movably mounted air duct, a plurality of elongated holes (11) through which the fins (3 ₁ ) can be inserted from the inside of the duct body (2) when the fins are mounted are provided in the one opposing wall (9 ₂ ), A plurality of mounting holes (10) that fit with _one mounting shaft portion (6 ₁ ) of each fin (3 ₁ ) is formed in the other opposing wall (9 ₁ ) and is formed on the outer surface of the duct body (2). wherein the bonding has been the elongated holes (11) to close the cover (13), that the provided plurality of mounting holes (15) of the other fitting the mounting shaft portion (6 ₂₎ of each fin (3 ₁₎ And the air duct.