JPH0343046Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement in the ventilation structure of an automobile.

(Prior Art) Conventionally, as shown in FIGS. 3 and 4, in an automobile 2 provided with a back door 1 that opens and closes an opening formed at the rear of the vehicle body, the inside of a rear pillar 3 having a closed cross section is used as a duct, An intake port 4 that communicates with the vehicle interior is provided on the inner surface of the rear pillar 3, and an exhaust port 5 that communicates with the exterior of the vehicle interior is provided on the outer surface of the rear pillar 3.
The rear exhaust gas is introduced into the interior (duct), and is discharged from the side of the vehicle body to the outside of the vehicle through a gap 7 between the exhaust port 5 and the quarter window glass 6, and a gap 8 between the rear pillar 3 and the back door 1. A ventilation structure has been proposed (see Japanese Utility Model Application Publication No. 151715/1983).

However, in the above conventional structure, the rear pillar 3
Since it is necessary to provide an air chamber inside the vehicle to prevent water from entering, the rear pillar becomes larger, the space inside the vehicle becomes smaller, and the degree of freedom in design is also restricted.

(Purpose of the invention) This invention was made in order to solve the above-mentioned conventional problems.It eliminates the need for a special air chamber, reduces the diameter of the rear pillar to the originally required closed cross-section, and provides flexibility in design. The purpose is to

(Structure of the invention) For this reason, the present invention is provided with a back door that opens and closes an opening formed at the rear of the vehicle body, and the back door is attached to a frame-shaped door frame having a closed cross section and is fixed to the door frame by adhesive. On the side of the door frame that corresponds to the rear pillar, there is an outlet that communicates with the outside of the vehicle in a part that is outside the bonded area between the window glass and the door frame and is covered by the window glass. At the same time, a door connection port is provided at a portion located above the discharge port and comes into contact with the rear pillar in a sealed state when the back door is closed. The present invention provides a ventilation structure for an automobile, characterized in that a pillar connection port that matches a door connection port is provided, and a suction port that communicates the closed section of the rear pillar with the passenger compartment is provided.

(Effects of the invention) According to the invention, by communicating the rear pillar and the door frame, which are in contact with each other when the door is closed, each of these existing closed cross-section spaces can be used as a sound deadening volume. This can significantly reduce transmitted noise. Further, since there is no need to provide a special chamber as in the conventional case, the rear pillar itself can be set to a necessary diameter, and the diameter of the rear pillar can be reduced by the volume of the door frame.

Furthermore, the discharge port is covered with a windshield, and the door connection port, pillar connection port, and suction port are provided above the discharge port, thereby reliably preventing rainwater from entering the vehicle interior from outside. I can do it.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, a rear pillar 13 is provided at the rear corner of the vehicle 10 and has a closed cross section formed by joining a pillar inner 11 and a pillar outer 12 at ends 13a and 13b.
The pillar outer 12 is formed with a recess 12a into which the door frame 20 of the back door 17 fits.

The quarter window glass 1 is attached to the outer end 13a of the rear pillar 13 in the vehicle width direction using an adhesive 14.
The rear portion of the rear pillar 13 is fixed with adhesive, and a sealing member 16 is fitted into the inner end 13b of the rear pillar 13, with which the inner surface of the door frame 20 comes into contact.

On the other hand, in the back door 17, the door inner 18 and the door outer 19 are located at ends 20a and 20b in the vehicle width direction.
The door frame 20 has a frame-shaped door frame 20 which is joined at a closed cross section and has a seaming weld 21 fitted to an inner end 20b of the door frame 20, and an outer end 20 of the door frame 20.
A sealing member 22 with which the outer end 20a abuts is fixed in the recess 12a of the pillar outer 12 facing a.

A peripheral portion of a rear window glass 24 is adhesively fixed to the outer surface of the door outer 19 of the door frame 20 using an adhesive 23.

Note that 29 is a rear pillar trim that covers the inner surface of the pillar inner 11.

An opening 29a is formed in the rear pillar trim 29, and a suction port 27 is formed in the rear pillar inner 11 of the rear pillar 13 and communicates with the opening 29a.
while providing the door outer 1 of the door frame 20.
The door frame 20 is located at a portion near the outer end 20a of the door frame 9, that is, a portion outside the adhesive portion 23 between the door outer 19 and the window glass 24 and covered from the outside by the window glass 24.
An exhaust port 28 is opened to communicate the inside and outside of the vehicle.
A pillar connecting port 34 into which a sealing member 33 is fitted is provided in the recess 12a of the pillar outer 12, and a door connecting port 35 is provided in the door inner 18 of the door frame 20 facing the pillar connecting port 34.
has been established.

In FIG. 1, the suction port 27, the pillar connection port 34,
Although the door connection port 35 is illustrated at the same height as the discharge port 28, as shown in FIG.
8, and even if rainwater or the like enters into a door frame 19 from a discharge port 28, it is prevented from entering into a rear pillar 13, thereby preventing water from entering a vehicle interior.

With the above configuration, the air inside the vehicle is
It is introduced into the rear pillar (duct) 13 from the suction port 27, then introduced into the door frame (duct) 20 of the back door 17 via the respective connection ports 34 and 35, passes through the discharge port 28, and is then introduced into the rear window glass 24. It is discharged to the outside of the vehicle through the gap 30 between the rear pillar 13 and the rear pillar 13.

In this case, the noise from outside the vehicle is attenuated by the space inside the door frame, which has a predetermined volume, and is further attenuated by the space inside the rear pillar.Using these two volumes as a silencing volume can provide sufficient noise reduction. can be achieved. As a result, the rear pillar 13 can be formed thin, increasing the degree of freedom in design.

Since the rear pillar 13 and the door frame 20 are double-sealed by the seal members 16 and 22, wind noise can be reliably prevented from entering through the gap (partition) 31.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a ventilation structure according to an embodiment of the present invention, Fig. 2 is a perspective sectional view of the main part of the structure shown in Fig. 1, and Fig. 3 is a cross-sectional view of an automobile adopting a conventional ventilation structure. The perspective view and FIG. 4 are cross-sectional views of a conventional ventilation structure. 10...Car, 13...Rear pillar, 16,
22... Seal member, 17... Back door, 20
... Door frame, 23 ... Adhesive, 24 ... Wind glass, 27 ... Suction port, 28 ... Discharge port, 30 ... Gap portion, 34, 35 ... Connection port.

Claims (1)

[Scope of utility model registration request] A back door is provided for opening and closing an opening formed in the rear part of an automobile body, and the back door is composed of a frame-shaped door frame having a closed cross section and a window glass that is adhesively fixed to the door frame. On the side of the door frame that corresponds to the rear pillar, an exhaust port that communicates with the outside of the vehicle is provided outside the bonded area between the window glass and the door frame and covered by the windshield, and also located above the area of the exhaust port. A door connection port is provided at a portion of the rear pillar that contacts the rear pillar in a sealed state when the back door is closed, and a pillar connection port is provided on the rear pillar that matches the door connection port of the door frame when the back door is closed. With,
A ventilation structure for an automobile characterized by providing a suction port that communicates a closed section of a rear pillar with a passenger compartment.