JPH0781381A - Vibration control device for outlet ventilation valve plate for automobile - Google Patents

Abstract

PURPOSE:To provide a device capable of momentarily releasing the in-cabin pressure generated by opening or closing the door, and of preventing the generation of vibration or unpleasant sound during travelling of an automobile. CONSTITUTION:A slide slit 3 is formed in the lengthwise direction at the lower part of an elastic valve body 2, the upper part of which is fixed, a supporting pin 4 having a head part 5 is arranged in the slit 3, and the electric valve body 2 is supported by the head part 5 of the pin 4 so that it can slide in the slide slit instantaneously as necessary. When the in-cabin pressure rises momentarily by closing the door, the elastic valve body 2 is pushed by the pressure to slide-deform the slit, and to release the in-cabin pressure to the outside, and then returns to its original position again. When the upper part of the elastic valve body 2 is fixed by a pressure plate, the situation is similar. During normal travelling, the elastic valve body 2 is supported by the head part 5 of the supporting pin 4 or the pressure plate so as not to be vibrated. Thus, since the in-cabin pressure can be momentarily released, and the elastic valve body 2 is firmly supported during the travelling, there is no vibration and unpleasant sound can not be generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration preventing device for a valve body of an automobile outlet ventilation.

[0002]

2. Description of the Related Art When a vehicle door is closed, if the inside of the vehicle is hermetically closed, a momentary increase in the indoor pressure causes a person in the vehicle to feel uncomfortable. Therefore, a check valve is provided on the vehicle body, and a device for instantaneously releasing the pressure is provided.

[0003]

The check valve has a function of releasing an instantaneous increase in pressure. However, there is a problem that the elastic valve body vibrates and vibrates when running.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a slide elongated hole is vertically formed in a lower portion of an elastic valve body having an upper portion fixed, and a head is provided in the slide elongated hole. And a lower portion of the elastic valve element is supported by the head of the support pin so that the elastic valve element slides in the slide long hole instantly as needed. It is what

Further, the present invention is characterized in that the upper part of the elastic valve body is fixed together with the pressing plate.

Further, the present invention is characterized in that the pressing plate has a substantially T-shaped structure.

[0007]

When the pressure in the room instantly rises due to the closing of the automobile door, the elastic valve element is pushed by the pressure and slides in the slide long hole to be deformed, allowing the room pressure to escape to the outside.
Slide again to return to the original position. Even when the upper part of the elastic valve element is fixed together with the pressing plate, the lower part of the elastic valve element is instantly opened to release the indoor pressure, and is immediately returned to the original position by the restraining plate. In normal driving conditions,
Since the elastic valve element is supported by the head of the support pin and by the holding plate, it does not vibrate.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 is an outlet ventilation provided on a vehicle body, and 2 is an elastic valve body. 1 and 2
In this case, the slide elongated hole 3 is formed in the lower portion of the elastic valve body 2 with the upper portion fixed, and the support pin 4 provided with the head is installed in the slide elongated hole 3. Then, the lower portion of the elastic valve body 2 has a head portion 5 of the support pin 4 so that the elastic valve body slides in the slide elongated hole instantly as needed.
Will be supported by. Further, the elastic valve body 2
Is fixed together with, for example, a substantially T-shaped pressing plate 6 at the upper part thereof.

However, when the pressure in the room rises instantly due to the closing of the automobile door, the elastic valve element 2 slides and deforms in the elongated slide hole 3 to release the room pressure to the outside, and then slide again to return to the original position. Return to. Even when the upper portion of the elastic valve body 2 is fixed together with the pressing plate 6, the lower portion of the elastic valve body 2 is instantly opened to release the indoor pressure, and the restraining plate 6 instantly returns to the original position. In a normal traveling state, since the elastic valve element 2 is supported by the head 5 of the support pin 4 and the pressing plate 6, it does not vibrate.

[0010]

As described above, according to the present invention, the room pressure can be instantly released, and the elastic valve element is firmly supported during traveling, so that it does not vibrate. The effect is that no unpleasant vibration noise is generated.

[Brief description of drawings]

FIG. 1 is an explanatory diagram including an enlarged view of a main part of the present invention.

FIG. 2 is an enlarged explanatory view of a main part.

FIG. 3 is a front explanatory view of another embodiment.

FIG. 4 is an enlarged explanatory view of a main part of FIG.

FIG. 5 is an enlarged explanatory view of a conventional device.

[Explanation of symbols]

 1 Outlet ventilation 2 Elastic valve body 3 Sliding long hole 4 Support pin 5 Support pin head 6 Presser plate 7 Body

Claims (3)

[Claims] 1. A slide elongated hole is formed in a lower portion of an elastic valve body having an upper portion fixed in a vertical direction, and a support pin having a head is provided in the slide elongated hole, and the slide pin is instantaneously provided as needed. A vibration isolator for an outlet ventilation for an automobile, wherein a lower portion of the elastic valve body is supported by a head portion of the support pin so that the elastic valve body slides in the slide elongated hole. 2. An antivibration device for a valve body of an automobile outlet ventilation, wherein an upper portion of the elastic valve body is fixed together with a holding plate. 3. The vibration damping device for a valve body of an outlet ventilation system for an automobile according to claim 2, wherein the holding plate has a substantially T-shaped configuration.