JPH055392Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention releases the internal pressure of the vehicle interior to the outside of the vehicle when closing the door after opening the vehicle door, thereby controlling the closing operation of the door. This invention relates to a ventilation opening/closing valve that is easy to operate.

(Prior art) Conventionally, this type of ventilation on-off valve was developed, for example, in
As disclosed in Japanese Patent No. 27907 and shown in FIG. A support bracket BK is provided at an intermediate portion of the ventilation port K, and a valve body V made of a thin elastic member such as rubber is supported in a suspended manner by the support bracket BK via a support pin P.

In this way, when the car door is closed after being opened and the internal pressure in the chamber becomes high, the fourth
As shown by the imaginary line in the figure, the valve body V is bent outward to open the ventilation port K, and the internal pressure inside the room is released from the ventilation port K to the outside, and the door is closed. We make it easy to do.

(Problem to be solved by the invention) By the way, in the ventilation opening/closing valve as described above, when the automobile door is not opened or closed, for example, when the automobile is running, the ventilation opening K is opened and closed by the valve body V. However, in the conventional on-off valve, a thin elastic member such as rubber is used as the valve body V, and the valve body V is supported by the ventilation port K in a suspended manner. , the valve body V
When the ventilation opening K is closed, the sealing performance against the ventilation opening K is poor, and therefore, outdoor dust, rainwater, etc. may enter the indoor side through the ventilation opening K.
Moreover, due to the pressure applied to the valve body V, the valve body V comes into contact with the support bracket BK, causing abnormal noise between the two, and moreover, many components are required. There were also problems such as high production costs.

This invention was devised in view of the above problems, and its purpose is to reduce the production cost without causing abnormal noise, and to prevent dust and rainwater from entering the room from entering the room. An object of the present invention is to provide a ventilation opening/closing valve that can reliably prevent such occurrences.

(Means for Solving the Problems) Accordingly, the present invention has an opening 1a corresponding to the ventilation port 5, and an opening 1a on the periphery of the opening 1a.
A valve support 1 is provided with a thin seal wall 4 that rises continuously from the valve support 1 and is fitted to the inner peripheral edge of the ventilation port 5.
and a valve body 2 which is swingably supported by the seal wall 4 via a thin hinge part 3 and seats on the end face of the seal wall 4 to close the opening 1a. and the valve body 2 are integrally molded from a rubber material, and the valve body 2 is sized such that the peripheral edge of the valve body 2 excluding the thin hinge portion 3 side is located outward from the outer surface of the seal wall 4. As such, the inner surface of the peripheral edge of the valve body 2 is connected to the seal wall 4.
The device is characterized by being seated on the end face of the device.

(Function) In the ventilation on-off valve formed as described above, the valve support 1 is connected to the ventilation valve in a state in which the valve body 2 is connected to the seal wall 4 except for the thin hinge portion 3 side. It is fitted and fixed to the inner peripheral edge of the mouth 5.

However, when closing the door after opening the car door, the internal pressure in the room increases, so the valve body 2 is operated to open, and the valve body 2 opens the ventilation port 5.
The valve body 2 is seated on the seal wall 4 on the side of the valve support 1, and the ventilation port 5 is reliably closed except when the door is opened or closed. Moreover, the peripheral edge of the valve body 2 except for the thin hinge part 3 side is located outward from the outer surface of the seal wall 4, and the inner surface of the valve body 2, which is located inward from the peripheral edge, is Seal wall 4
Since it is seated on the end surface of the valve body 2, even if rainwater or the like hits the outer surface of the valve body 2, it will flow along the outer surface of the valve body 2, and the rainwater will inadvertently leak from the opening 1a to the inside of the vehicle interior. Therefore, there is no risk of dust or rainwater entering the room from the ventilation opening 5.

(Example) The ventilation on-off valve according to the present invention will be described below with reference to the embodiments shown in the drawings.

Figure 3 shows the state of the ventilation on-off valve after it has been molded and before it is attached to the automobile body, and shows the opening 1a corresponding to the ventilation opening 5, which will be described later, and the opening 1a.
A generally rectangular valve support 1 is provided with a thin seal wall 4 that rises continuously from the opening 1a around the periphery of the valve support 1, and a thin seal wall 4 is provided at a portion of the valve support 1 facing the opening 1a. between the seal wall 4 located on the upper edge side of the opening 1a in the valve support 1 and the upper end of the valve body 2; A thin hinge part 3 that swingably connects the valve body 2 is integrally formed, and an engagement groove 1b that fits into a ventilation opening 5 formed in the automobile body B is provided on the outer peripheral part of the valve support body 1.
is formed.

Further, the valve body 2 has a size such that the peripheral edge of the valve body 2 excluding the thin hinge portion 3 side is located outward from the outer surface of the seal wall 4, so that the inner surface of the peripheral edge of the valve body 2 is It is configured to sit on the end face of the seal wall 4.

The ventilation on-off valve described above is integrally molded using a molding means using a rubber material, that is, the valve support 1, the valve body 2, and the hinge part 3 that constitute the on-off valve
and the seal wall 4 are molded in a state where they are each integrally connected.

When the valve body B is attached to the automobile body B, as shown in FIG. 1 and FIG. 2 is made to swing around the hinge portion 3, and when the valve body 2 is closed, a slightly inner peripheral portion of the valve body 2 than the outer peripheral edge thereof is seated on the seal wall 4. Moreover, the engagement groove 1b formed on the outer periphery of the valve support 1 is fitted into the ventilation port 5 provided in the automobile body B to communicate the interior and exterior of the vehicle.

With the above configuration, when the vehicle door is closed after being opened and the internal pressure in the room becomes high, the valve body 2 is moved to the hinge portion 3 as shown by the imaginary line in FIG. The ventilation opening 5 is opened, the internal pressure inside the room is released to the outside, and the opening operation of the door is easily performed. In addition, as shown by the solid line in the figure, the valve body 2 is seated on the seal wall 4 on the side of the valve support 1, and the ventilation port 5 is reliably closed by the valve body 2.

For example, when driving in the rain, even if rainwater adheres to the outer surface of the valve body 2 and flows along the outer surface of the valve body 2, the lower end of the valve body 2 may Since the rainwater overlaps below the lower edge of the opening 1,
There is no risk of the inside of the vehicle being invaded from inside the vehicle.

(Effect of the invention) As explained above, the ventilation on-off valve of the present invention has an opening 1a corresponding to the ventilation port 5, and a thin seal wall that stands up continuously from the opening 1a around the opening 1a. 4, the ventilation port 5
a valve support 1 that fits onto the inner circumferential edge of the valve support 1; and a valve that is swingably supported by the seal wall 4 via a thin hinge portion 3 and seats on the end face of the seal wall 4 to close the opening 1a. The valve support body 1 and the valve body 2 are integrally molded from a rubber material, and
The valve body 2 is sized such that the peripheral edge of the valve body 2 excluding the thin hinge portion 3 side is located outward from the outer surface of the seal wall 4, and the inner surface of the peripheral edge of the valve body 2 is By seating on the end face of the seal wall 4, the number of component parts can be significantly reduced, and manufacturing costs can be reduced. Since the walls 4 are made of the same rubber material and the seal wall 4 is thin, it is possible to prevent abnormal noise from occurring between the two, and furthermore, When the valve body 2 is closed, the ventilation port 5 can be reliably closed by seating the valve body 2, which is made of a rubber material, on the seal wall 4.

Moreover, according to the present invention, the peripheral edge of the valve body 2 excluding the thin hinge 3 side is located outward from the outer surface of the seal portion 4 and inward from the peripheral edge of the valve body 2. The inner surface of the seal wall 4
Since the rainwater flowing along the outer surface of the valve body 2 is seated on the end face of the opening 1,
Since it is guided to an outer position that is a predetermined distance away from the peripheral edge of a, it is possible to reliably prevent outdoor dust, rainwater, etc. from entering the indoor side.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing how the ventilation on-off valve according to the present invention is attached to the ventilation port, Figure 2 is a perspective view showing the overall structure of the on-off valve, and Figure 3 is after the on-off valve has been molded. A sectional view showing the state, and FIG. 4 is a sectional view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Valve support body, 2... Valve body, 3... Hinge part, 4... Seal wall, 5... Ventilation opening.

Claims (1)

[Scope of utility model registration request] A ventilation opening/closing valve provided at a ventilation port 5 that communicates the indoor and outdoor areas and opened by the internal pressure on the indoor side, and an opening 1a corresponding to the ventilation port 5;
The peripheral edge of the opening 1a is provided with a thin sealing wall 4 that rises continuously from the opening 1a, and the valve support 1 is fitted to the inner peripheral edge of the ventilation port 5, and the sealing wall 4 is provided with a thin sealing wall 4. The valve body 2 is supported by a hinge part 3 so as to be able to swing freely, and is seated on the end face of the seal wall 4 to close the opening 1a.The valve support body 1 and the valve body 2 are made of a rubber material. At the same time, the valve body 2 is sized such that the peripheral edge of the valve body 2 excluding the thin hinge portion 3 side is located outward from the outer surface of the seal wall 4, so that the peripheral edge of the valve body 2 is A ventilating on-off valve characterized in that an inner surface of the valve is seated on an end surface of the seal wall 4.