JPH0512672Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to the improvement of air conditioning ducts, and more specifically, to an air conditioning duct that is easy to attach to the duct and has an outlet that allows the direction of air to be freely changed. Regarding.

<Conventional technology> For example, as an air conditioning duct installed in a car,
Conventionally, a structure shown in FIG. 5 and 10 has been used. That is, the air outlet part 12 was attached to the tip opening of the cylindrical duct part 11 so that the inclination angle of the grille 12a could be adjusted.

The cylindrical duct part 11 of the air conditioning duct 10 is generally made by blow molding, and the outlet part 12 is made by injection molding. The grill 12a on the outlet side of the outlet section 12 is attached to the outlet of the outlet section 12 so that the inclination angle can be adjusted, and the opposite end of the outlet section 12 is "screwed".
It was connected to the open end of the cylindrical duct portion 11 by a fastening means such as the like.

<Problems to be solved by the invention> However, the conventional air conditioning duct 10 described above has the following problems:
The air outlet part 12 is connected to the open end of the cylindrical duct with a fastening means such as a screw, and the direction of the air blown from the air outlet is changed by changing the inclination angle of the grille 12a. Parts such as the grille 12a specially attached to the end of the mouth are required, and a large number and types of parts are required.

Furthermore, in terms of the materials of the component parts, the cylindrical duct part 11 is made of a normally blow-molded cylindrical body with a bottom with both ends cut off, the blow-out grille 12 is made of an injection-molded product, and the grille 12a
Since the grille 12a is attached to the outlet portion so that its inclination angle can be changed, and the opposite side is fastened to the cylindrical duct, it is not possible to adjust the rotation of the grille 12a about the axis.

Furthermore, even if we try to reuse the cut-off parts other than the cylindrical duct part from the bottomed cylindrical body that is the blow-molded product mentioned above, it is difficult to use the air conditioning duct 10 with the above structure, so it is currently almost a waste. There was a lot of waste from an economic point of view.

This invention was made in order to eliminate such problems with conventional air conditioning ducts. ○C Furthermore, the air outlet part can be easily attached to the open end of the cylindrical duct, and ○D The cylindrical duct part and the air outlet part can be easily constructed from the same blow molded product. The aim is to provide air conditioning ducts that can

<Means for Solving the Problems> In order to achieve the above object, the air conditioning duct according to this invention includes a cylindrical duct portion having an opening at the tip; and a bottomed duct at the opening of the cylindrical duct portion. A blowout formed by turning the bottomed part of the shaped body toward the blowout port, rotatably fitting the opposite side into the opening of the cylindrical duct part, and opening the corner part of the bottomed part of the cylindrical body. It is characterized by having a cylindrical blow-out portion with a mouth.

<Function> As described above, the bottomed part of the bottomed cylindrical body is directed toward the outlet, and the opposite side is rotatably fitted into the opening of the cylindrical duct part. In addition, since the outlet of the cylindrical body is provided with the outlet formed by cutting the corner of the bottomed part of the cylindrical body, the connection between the cylindrical duct part and the outlet of the cylindrical body is facilitated. It is only necessary to fit them together, and since the outlet part of the cylindrical body can be freely rotated, the inclination angle of the opening of the outlet part can be freely changed, and the direction of the air can be changed.

<Example> Next, an example of the air conditioning duct according to this invention will be described.

A Structure FIG. 1 is a partially cross-sectional side view of the air conditioning duct 18 of the embodiment, and FIG. 2 is a perspective view of the air conditioning duct 18 shown in FIG. 1.

As shown in FIGS. 1 and 2, the air conditioning duct 18 of this embodiment has a cylindrical outlet on the inner periphery of a cylindrical duct 13 having an opening at its tip and a bottomed portion at the top of the outlet. The parts 15 are rotatably fitted together, and a corner of the bottomed part of the outlet part 15 is partially cut off to form an outlet 15b.

The cylindrical duct part 13 and the outlet part 15 have a cylindrical cross section, and the outer diameter of the outlet part 15 is adjusted so that the outlet part 15 fits into the inner wall surface of the cylindrical duct part 13. It is made smaller than the outer diameter of the portion 13.

In addition, in the vicinity of the tip of the cylindrical duct part 13 and in the vicinity of the base of the cylindrical outlet part 15, there are constricted parts 13 having substantially similar shapes to each other along the circumferential direction.
a, 15a are formed, and these constricted parts 13a, 15a are formed so that they can fit into each other when the cylindrical outlet part 15 is fitted inside the cylindrical duct part 13 as described later. It's getting old.

Furthermore, a portion of the corner of the bottomed portion of the cylindrical air outlet portion 15 is cut off to open the air outlet 15b.

Further, a ring-shaped spring 1 is disposed inside the cylindrical outlet 15 near the constriction 15a.
7 to increase the rigidity of the outer peripheral wall surface of the outlet portion 15.

B. Manufacturing To manufacture the air conditioning duct 18 of this example, first, as shown in FIG.
A cylindrical molded product 16 is used, which is formed by integrally blow-molding the cylindrical duct portion 13 and a bottomed cylindrical outlet portion 15 that is continuous via the cutting portion 14.

The cross sections of the cylindrical duct part 13 and the air outlet part 15 are cylindrical, and the outer diameter of the air outlet part 15 is adjusted so that the cylindrical air outlet part 15 fits inside the cylindrical duct part 13. It is formed smaller than the portion 13. Constrictions 13a and 15a having substantially similar shapes are formed along the circumferential direction near the tip of the cylindrical duct portion 13 and near the base end of the cylindrical outlet portion 15. The parts 13a and 15a are the air outlet part 1 as described later.
5 can be fitted into each other when fitted into the cylindrical duct part.

Next, as shown on the left side of FIG. 4, the blow-molded product 16 having such a shape is cut from the cutting part 14 to separate it into the cylindrical duct part 13 and the outlet part 15, and then the outlet part One corner of the bottomed top part of No. 15 is cut off to open the air outlet 15b.

Thereafter, as shown on the right side of FIG. 4, a ring-shaped spring 17 is inserted inside the air outlet part 15, and is fitted into the inner periphery of the cylindrical duct part 13 so as to close its open end. , 15a
are engaged with each other, and the outlet portion 15 is attached to the cylindrical duct portion 13. The air conditioning duct 18 is then assembled into the configuration shown in FIGS. 1 and 2.

In the air conditioning duct 18 of this embodiment, the outlet portion 15 is rotatable relative to the cylindrical duct portion 13, and by rotating the outlet portion 15, the position of the outlet 15b is changed. You can change the direction of the air being blown out.

In this embodiment, the outlet 15 is fitted into the inner periphery of the cylindrical duct part 13; however, the outlet 15 may be fitted over the outside of the duct part 13. In addition, in this embodiment, the air outlet portion 15 is prevented from coming off, and
Although the constricted portions 13a and 15a are provided to allow rotation of the outlet portion 15 with respect to the duct portion 13, the shape and position of the constricted portions 13a and 15a are not limited to this, and the constricted portions 13a and 1
Another retaining means may be provided in place of 5a.

Further, the cylindrical duct part 13 and the air outlet part 15 are not limited to cylindrical shapes, but may also be rectangular cylinder shapes.
The position of b can be changed.

<Effects of the invention> As is clear from the above explanation, the air conditioning duct according to this invention is connected simply by rotatably fitting the outlet into the opening of the cylindrical duct, so special fastening parts are not required. do not need.

In addition, the air outlet part that is rotatably fitted into the opening of the cylindrical duct is made of a cylindrical body with a bottom, and the bottomed part faces the air outlet side, and the air outlet is opened at the corner of the air outlet. You can freely change the direction of the air by simply rotating the shaped outlet.

Furthermore, the air conditioning duct of the present invention can use the end of the blow molded product, which was conventionally cut off, as a component of the air conditioning duct, eliminating material waste and reducing the number of parts. There is no need to use molded products, so the air conditioning duct can be manufactured at low manufacturing costs.

[Brief explanation of the drawing]

FIG. 1 is a partially cross-sectional perspective view showing the configuration of an embodiment of an air conditioning duct according to the present invention, FIG. 2 is a perspective view of the air conditioning duct shown in FIG. 1, and FIG. 3 is a perspective view of the air conditioning duct shown in FIG. 1. FIG. 4 is a partially sectional side view of the blow molded product used in the manufacture of the blow molded product shown in FIG. FIG. In the drawing, 10... conventional air conditioning duct, 11...
Cylindrical duct portion of conventional air conditioning duct, 12...Blowout port of conventional air conditioning duct, 13...Cylindrical duct portion of air conditioning duct of the present invention, 15...Blowout port of air conditioning duct of the present invention, 15b ...Air outlet, 18...Air conditioning duct according to the present invention.

Claims (1)

[Claims for Utility Model Registration] A cylindrical duct portion having an opening at its tip; The bottomed portion of the cylindrical body is directed toward the outlet, and the opposite side is placed in the cylindrical shape. A cylindrical body has an air outlet that rotatably fits into the opening of the duct and has an air outlet formed by cutting a corner of the bottomed part of the cylindrical body. air conditioning duct.