JPS6144018A - Ventilating duct - Google Patents

Abstract

PURPOSE:To facilitate installation by forming a ventilating duct with a rigid material and providing an opened side part which has sufficient size to cover both of openings which are formed on a body to connect said duct to the inside of the car room and the cooler of a car respectively. CONSTITUTION:A ventilating duct 20 is formed with a material having rigidity, with its side part 21 being opened so as to have dimensions and configuration that can cover both of openings 4, 6 which are formed on a body 3 to connect the duct to the inside of a car room 2 and to a cooler 5 outside the car room respectively. The ventilating duct 20 is installed to the body 3 in such a way that the side part 21 of the duct 20 covers the openings 4, 6 of the body 3. And, packing 24 is installed between the peripheral part of the side part 21 and the body 3 to prevent air from leaking, while a screw 25 is fitted to a boss 22 provided on the upper part of the ventilating duct 20, through the body 3.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ventilation duct, and more particularly to a ventilation duct used in a rear seat air conditioner of a vehicle such as a wagon.

BACKGROUND OF THE INVENTION An example of a prior art ventilation duct used in a rear seat air conditioner of a vehicle such as a wagon is indicated by reference numeral 1 in FIGS. 4-7. The ventilation duct 1 has a cylindrical shape with a closed cross section as shown in the figure, and has an opening 4 formed in a body 3 so as to communicate with the interior of the vehicle interior 2, and an opening 4 formed in the body 3 so as to communicate with a cooler 5 outside the vehicle interior 2. It has ends 7, 8 which are attached to an opening 6 formed in the holder. The ventilation duct 1 is arranged in an invisible location, such as inside a body structure 9 such as a pillar or trim, in order to effectively utilize the space of the rear seat (passenger cabin) and to improve the appearance. Such body structures 9 are often very small and have only a small amount of available space inside them.

Therefore, in order to facilitate the work of arranging the ventilation duct 1 in such a small space, the ventilation duct 1 is made of a soft material, such as an EP-2 glow product.

For this reason, when inserting and installing the ventilation duct 1 into the body structure, this ventilation duct is also added in order to fix the ends 7 and 8 of the ventilation duct 1 to the body 3, since the ventilation duct 1 is made of a soft material. This requires several parts, and it is difficult to perform the work smoothly.

The usual method for attaching the ventilation duct 1 to the body 3 is to form a collar 10T on the end 7 of the ventilation duct 1, and install the ventilation duct 1 from the top of the body structure 9 such as a pillar to the fourth
The boxwood 10 is inserted as shown by the arrow A in the figure, and the boxwood 10 shown by the broken line in FIG.

Next, a press plate 11 is placed on the collar 10 of this soft material and fixed to the body 3 with screws 12 to form the ventilation duct 1.
Prevents wind leakage from the The end portion 8 has the same structure and also requires outdoor work.

(End part 7 is for indoor work) However, there may be no press plate.

Problems to be Solved by the Invention As described above, the ventilation duct according to the prior art has a brim of 10 tons that is crushed when it is attached to the body.
It is difficult to carry out a clean installation work because it has to be pulled out from the opening 4 of the holder.

In addition, the boxwood 10 of the ventilation duct is also made of soft material.
To fix this, use the presser plate 11.
is required.

Further, when the opening 4 of the body 3 is enlarged to increase the amount of ventilation, it becomes necessary to divide the opening as shown by reference numeral 13 in FIG. 8 in order to ensure the strength of the body at the opening 4. That is, two openings 4', 4' are formed. Naturally, 1 ventilation duct 1'H 2 ends 7', 7't-
The structure becomes complicated.

Furthermore, it will be easily understood that with this conventional technique, the shape of the opening 4 of the body 3 cannot be made too complicated.

Further, when the presser plate 11 is used, a grille 14 as shown in FIG. 9 is required to cover it from an aesthetic point of view. This grill 14 is connected to the opening 4 of the body 3.
It is relatively large compared to . That is, in FIG. 9, the inner diameter d of the grille 14 is approximately equal to the size of the opening 4 of the body 3, but the outer diameter O is much larger than the groove, making it difficult to utilize the space effectively. It is disadvantageous because

Furthermore, it is difficult to process the ends 7 and 8 in the same process when setting the ducts.

Also, as shown in Figure 7, a certain gap g must be maintained between the ventilation duct 1, 1' and the body 3 or body structure 9 over the entire circumference of the ventilation duct 1, and the duct must be cut. In addition to being disadvantageous in terms of space, these ventilation ducts are mostly blow-molded due to their material and shape.

The present invention eliminates the various drawbacks of the prior art as described above, has a simple structure, can be easily installed, and allows the shape of the opening in the body to be selected over a wide range. What was done comes out.

Means for Solving the Problems The ventilation duct of the present invention covers both the opening formed in the body to communicate with the interior of the vehicle and the opening formed in the body so as to communicate with the cooler. Has open sides of sufficient size.

It is made of a rigid material.

action The ventilation duct of the present invention has the above configuration.

K so that the open side of the ventilation duct simultaneously covers both the meso-shaped openings facing the vehicle interior and exterior of the vehicle.
By attaching this to the body, a part of the body can be used as a wall of a ventilation duct, and air inside the vehicle can be introduced into a cooler or the like provided outside the single room. Then, when installing this ventilation duct, it is possible to install the ventilation duct without having to do complicated work such as crushing the L collar and pulling it out. A preferred embodiment of the present invention will be described.

The ventilation duct 20 according to the present invention is rigid as a whole, has a bowl-like shape, and is made of ABS or PP by injection or vacuum forming. It can also be manufactured by bending an iron plate or the like.

The ventilation duct 20 has an open side portion 21, and has an opening 4 formed in the body 3 so as to communicate with the inside of the vehicle compartment 2, and an opening 4 formed in the body 3 so as to communicate with the cooler 5 outside the vehicle compartment 2. It has a size and shape that allows it to simultaneously cover both the opening 6 formed in the opening 6 and the opening 6 formed in the opening 6, as shown in FIG. Ventilation duct 20
A boss 22 for positioning and fixing the ventilation duct 20 is formed at the upper part of the ventilation duct 20. A hole 23 is formed in this screw 22, and the ventilation duct 20 is formed by the rib 22aK.
It is integrated with the main body part of.

To attach the ventilation duct 20 having the above structure to the body 3, attach the open side 21 of the ventilation duct 20 to the body 3.
Attach it so that it covers both openings 4 and 6. At this time, a gasket 24 is used between the peripheral edge of the side part 21 and the body 3 to prevent air leakage, and the positioning is performed using screws 25 and bosses 22 to securely fix it in a predetermined position. At the same time, these are fixed via the body 3. By fixing in this way, a part of the body 3 can be used as part of the side surface of the ventilation duct 20.

Effects of the Invention As described above, the ventilation duct 20 according to the present invention has an extremely simple structure and is shaped like a container with the side portion 21 open. In addition, since the ventilation duct 21 has rigidity, it is easy to handle, and can be easily and safely installed from inside the vehicle compartment without requiring complicated work such as crushing the brim and pulling it out from the opening. .

The presser plate 11 and the like used in the prior art are unnecessary. Furthermore, compared to the conventional ventilation duct 1 shown by the broken line in FIG. 5, the space g between the body 3 and the broken line can also be used as a duct, so the cross-sectional area of the duct can be increased. Can be done. Furthermore, it is possible to select the shapes and dimensions of the openings 4 and 6 formed in the body 3 relatively freely, and it is also possible to freely form a grille or the like in the body 3.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a ventilation duct according to the present invention, and FIG. 2 is a cross-sectional view of this ventilation duct attached to the body of a vehicle.
Figure 6 is a sectional view taken along line 1-1 in Figure 2, Figure 4 is a sectional view showing a conventional ventilation duct attached to the body of a vehicle, and Figure 5 shows the main parts of Figure 5. 6 is a schematic perspective view of the conventional ventilation duct shown in FIGS. 4 and 5, and FIG. 7 is taken along the line of FIG. 4, 1f.
8 is a perspective view of another ventilation duct according to the prior art, and FIG. 9 is a sectional view showing another embodiment in which the ventilation duct according to the prior art is attached to the body of a vehicle. 2... Vehicle interior, 3... Body 4...
Opening, 5... Cooler 6... Opening,
20...Ventilation duct. 21...Open side part, 22...Boss. 24...Packskin, 25...Screw.

Claims (1)

[Claims] an open side portion large enough to cover both an opening formed in the body to communicate with the interior of the vehicle and an opening formed in the body to communicate with the cooler; A rigid, almost vessel-shaped ventilation duct that is fixed to the body.