JPH0136772Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an in-bottle gas release mechanism.

Gas is naturally generated from the contents inside the bottle, and this generated gas becomes under abnormally high pressure, which tends to cause accidents such as the bottle itself bursting or the stopper popping out.

In view of this, the present invention aims to prevent the bottle from bursting, the stopper from popping out, etc. by making it possible to automatically release the gas generated inside the bottle to the outside of the bottle.

Hereinafter, the present invention will be described in detail with reference to illustrated embodiments.

Figure 1 is a central vertical sectional view, Figure 2 is A-A in Figure 1.
It is an A-line sectional view.

In the figure, 1 is a bottle spout, and 2 is an inner stopper that fits into the bottle spout 1. The inner plug 2 has a through hole 3 formed in the center of the top wall 2', and a bulge 4 bulging upward around the hole 3.
I'm letting you do it. Reference numeral 5 denotes a gas venting chamber formed on the inner surface of the top wall of the cap, which will be described later, so as to be in close contact with the upper part of the inner stopper 2. Further, the gas venting chamber 5 has a bottom wall 6
A recess 7 which becomes deeper toward the center is formed, a through hole 8 connected to the through hole 3 is bored in the center, and a filter 9 is provided at the periphery of the recess 7 to cover the whole of the recess 7. is attached. The filter 9 is made of a material that blocks the passage of liquid and allows only gas to pass. In addition, the gas venting chamber 5 is provided with a through hole 10 in the peripheral edge of the bottom wall 6 on the outside of the filter 9, through which the gas that has passed through the filter 9 is discharged into the atmosphere through the cap. . In this embodiment, the through hole 10 is provided in the bottom wall 6 of the degassing chamber 5, but it is provided in the peripheral wall 5'.
may be provided. Reference numeral 11 denotes a cap screwed onto the bottle mouth 1, and the gas venting chamber 5 is formed on the inner surface of the top wall 11' as described above.

Next, the mode of operation of the present invention having the above configuration will be explained.

When the contents are put into the bottle through the mouth 1, the inner stopper 2 is inserted, and the cap 11 is screwed on, the state shown in FIG. 1 is obtained. When gas is generated in the bottle in this state, the generated gas flows from the through hole 3 of the inner stopper 2 through the through hole 8 of the degassing chamber 5 and into the recess 7 of the degassing chamber 5. The gas flowing into the recess 7 passes through the filter 9, and further passes through the hole 10 between the cap 1 and the bottle mouth 1 and is discharged into the atmosphere. Furthermore, when the bottle is tipped, the action of the filter 9 prevents the contents from flowing out.

Since the present invention has the above-mentioned structure and function, it is possible to automatically release the gas naturally generated inside the bottle to the outside of the bottle, thereby preventing the bottle from bursting or the stopper from popping out due to gas pressure. can do. Furthermore, in the present invention, an inner plug is used that has an upwardly bulging portion around the through hole for gas outflow, and
The filter is attached to the upper surface of the bottom wall of the gas venting chamber formed on the inner surface of the top wall of the cap, so when screwing the cap, the top surface of the bulge of the inner stopper and the bottom plate of the gas venting chamber are attached. Only the bottom surface of the cap rubs, so the filter rotates with the cap, and is never damaged by rubbing against other parts. This makes it possible to prevent the filter from deteriorating in function.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a central vertical sectional view, and FIG. 2 is a sectional view taken along line A--A in FIG. 1. 2...Inner stopper, 3...Through hole, 5...Gas venting chamber,
6... Gas venting chamber bottom wall, 7... Recess, 8... Through hole, 9... Filter, 10... Through hole, 11...
Cap.

Claims (1)

[Scope of utility model registration request] A through hole 3 of a required diameter is bored in the center of the top wall 2', and the inner stopper 2, which has a bulge 4 upward around the through hole 3, is inserted into the bottle mouth 1, and the inner stopper 2 is inserted into the bottle mouth 1. A gas venting chamber 5 is formed on the inner surface of the top wall 11' of the cap 11 to which the cap 11 is screwed, and a recess 7 that becomes deeper toward the center is formed on the upper surface of the bottom wall 6 of the gas venting chamber 5. A through hole 8 having approximately the same diameter as the through hole 3 of the inner stopper 2 is located in the center thereof.
At the same time, a filter 9 is affixed to the upper surface of the bottom wall 6 to allow only gas to pass through without passing the liquid that covers the entire recess 7.
Alternatively, a through hole 10 is formed in the peripheral wall 5' through which the gas that has passed through the filter 9 flows out to the outside, and the through hole 3 of the inner plug 2 and the through hole 8 of the gas venting chamber 5 are aligned, so that the inner plug The gas release mechanism in the bottle is characterized in that the lower surface of the bottom wall 6 of the degassing chamber 5 is brought into close contact with the upper surface of the bulging part 4 of No. 2.