JPH0127936Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a ventilation system for discharging air inside a vehicle to the outside air.

<Prior art> When a car door is closed, the air inside the car increases in pressure, giving a feeling of pressure to the ears. Furthermore, the door closing performance is reduced. To solve this problem, ventilation devices with various structures have been provided that exhaust air from the vehicle interior to the outside of the vehicle when the door is closed. For example, in 1977
-91456, many door bodies are equipped with a ventilation device that guides and exhausts the air inside the vehicle to the outside air.

<Problem to be solved by the invention> As with the above-mentioned conventional technology, a door body equipped with a ventilation system requires a complicated configuration of air exhaust passages and duct pipes within the door body. must be placed so as not to affect the vertical movement of the window glass.

This invention utilizes a side spoiler attached to the bottom edge of the vehicle door opening,
The present invention provides a ventilation device with a simple structure and solves the above-mentioned conventional problems.

<Means for Solving the Problems> The present invention provides a method for solving the problems in a car in which a side spoiler is attached to the bottom edge of the lower edge of the door opening of the car body.
An air exhaust port is provided on the rear lower surface of the side spoiler, an air exhaust port that communicates with the space inside the side spoiler is provided in front of the rocker outer, and a vehicle interior and the closed cross-section space are connected to the rear of the rocker inner that forms a closed cross section with the rocker outer. A check valve is provided at the air outlet of the side spoiler and rocker outer to allow air to be discharged only from the inside of the vehicle.

<Function> In the present invention, when the door is closed, the air that is about to rise in pressure inside the vehicle is guided from the air outlet of the inner rocker to the air outlet of the outer rocker, and the check valve is automatically opened by the exhaust air pressure. It is released into the outside air from the air outlet opening in the spoiler.

Furthermore, when the vehicle is running, the check valve opens due to the negative pressure generated by the airflow while the vehicle is running, and the air inside the vehicle is drawn in and released into the outside air. Then, ventilation is performed near the floor surface of the vehicle interior.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. In FIG. 1, 1 is a door opening/closing opening of the vehicle body, A indicates the interior of the vehicle, and B indicates the exterior of the vehicle. At the lower edge of this door opening/closing opening 1, there is a vehicle body component with a closed cross section consisting of a rocker outer 2 and a rocker inner 3, and a side spoiler 5 is attached to the rocker outer 2 with its upper and lower surfaces sealed.

The present invention provides air exhaust ports 6, 7, and 8 in the side spoiler 5, rocker outer 2, and rocker inner 3, respectively, in an automobile equipped with the side spoiler 5 as described above. The opening positions of the air exhaust ports 6, 7, and 8 are as shown in FIG. The air exhaust port 7 is opened at the front facing the space inside the side spoiler 5, and the air exhaust port 8 of the locker inner 3 is opened at the rear so as to communicate with the interior of the vehicle.

A check valve 9 is provided at the air outlet 7 of the rocker outer 2 to allow air to be discharged only from the inside of the vehicle. Reference numeral 10 denotes a casing constituting the check valve 9, in which a flange 11 is attached around the entire circumference of the air outlet 7 with a sealing material 12 interposed, using resin screws or grommets.

Furthermore, a check valve 14 is also provided at the air outlet 6 of the side spoiler 5. In this case as well, as shown in FIGS. 2 and 3, a check valve 14 is attached to the casing 13 attached to the air outlet 6 so as to be openable and closable.

Since the present invention has the structure as described above, the air pressure generated inside the vehicle when the door is closed is
The air enters the air outlet 8 of the rocker inner 3 from the rocker inner 3 and flows through the closed section formed by the rocker inner 3 and the rocker outer 2 as a duct, and the air flows through the rocker inner 3 and the rocker outer 2.
The air enters the space formed by the rocker outer 2 and the side spoiler 5 by pushing open the check valve 9 provided at the air outlet 7, flows through this space as a duct, and is discharged to the outside air from the air outlet 6. At this time, the check valve 14 is pushed open to release the liquid. Therefore, when the door is closed, air pressure inside the vehicle is prevented from rising, reducing the feeling of pressure on the occupant's ears and improving the door closing performance.

In addition, when the vehicle is running, the check valve 9 (and 14) opens due to the negative pressure generated by the airflow while the vehicle is running, and the air inside the vehicle is attracted by the negative pressure of the airflow while the vehicle is running, and the air is then released to the outside air. be.

<Effects of the invention> As described above, according to the invention, it is a ventilation system with a simple structure that utilizes a rocker panel and side spoiler at the lower edge of the door opening of the vehicle body, and compared to the conventional one installed inside the door body. Therefore, the ventilation system of the present invention is significantly more advantageous in terms of configuration, assembly, and cost.

In addition, since the present invention ventilates the floor area, the warm air from the heater in winter is guided to the feet, creating an ideal heating condition that warms the feet and warms the feet.

Furthermore, in the present invention, the closed cross section formed by the rocker panel and the space formed by the rocker outer and side spoiler are connected through air exhaust ports opened at the front and rear positions relative to each other, thereby forming a meandering air flow passage. Therefore, the actual length of the air flow passage becomes long, and the mutual arrangement of the air exhaust ports in the front and back has a soundproofing effect that blocks noise from outside the vehicle. The check valve provided at the discharge port has the advantage of doubly preventing water and dust from entering from the outside, and completely blocking entry into the closed section of the rocker panel, which is a steel plate that is prone to rust.

[Brief explanation of the drawing]

Fig. 1 is a broken perspective view of the main part of the present invention, Fig. 2 is an enlarged sectional view of the main part, Fig. 3 is a sectional view taken along the line of Fig. 2,
FIG. 4 is a sectional view showing the flow state of exhaust air in the present invention. 1...Door opening/closing opening, 2...Lotsuka outer, 3...
...Lotsukainna, 5...Side spoiler, 6,
7, 8...Air outlet, 9...Check valve.

Claims (1)

[Scope of utility model registration request] In an automobile in which a side spoiler is attached to a rocker outer at the lower edge of a door opening of the vehicle body, an air exhaust port is provided on the rear lower surface of the side spoiler, and an air exhaust port leading to a space inside the side spoiler is provided in front of the rocker outer. An air exhaust port that communicates the vehicle interior with the closed cross-section space is provided at the rear of the rocker inner that forms a closed cross section, and a back check is provided at the air exhaust ports of the side spoiler and rocker outer that only allows air to be discharged from the inside of the vehicle interior. An automobile ventilation system that is equipped with a valve.