JP2003118762A - Gas releasing cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas releasing cap which has no problem such as dust or dirt attaching to and clogging the top face opening of a gas-vent cap for venting a gas in the open air, which is often the case with a conventional gas venting cap whose built in gas venting packing has a vertical vent with an opening only in the top and which often leads to the failure of a gas venting function, without mentioning a metal cap for which no means for venting a gas is provided because making a small hole on the top of the metal cap is a secondary processing resulting in a cost increase. SOLUTION: This gas venting mechanism is one for stably venting a gas with no clogging of a groove hole. A gas inductive groove or a built-in inductive packing material is provided on a part of and on the inside of a cap where no dust or dirt is attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention spontaneously generates a very small amount of gas (gas) when the content (particularly liquid) filled in a container is spontaneously generated. Gas that fills the container and prevents the cause of destruction or leakage of the container (gas)
It is a cap for exclusive use.

[0002]

2. Description of the Related Art A conventional degassing cap has a packing material processed into a composite packing of a microporous film and a packing material and is built in the top surface of the cap. However, the gas released from the composite packing is Gas is vented from a small hole in the top surface of the cap with a built-in packing. In this method, since the small holes are the top surface of the cap, and dust and dirt are easily attached to the holes, the holes are clogged and the gas cannot escape, which causes the container to be destroyed.

Further, in the case of a cap or the like made of metal, since the processing of the small holes of the gas vent holes is post-processing, the cost is increased and the gas venting mechanism is not considered at all. Further, even if the small holes are processed, the composite porous packing has a problem of causing the small holes to be clogged as described above because of the vertical vents (which only volatilize vertically).

[0004]

The present invention has a problem with the gas venting cap in the prior art, but with a simple combination, only the gas is passed, the liquid is stopped, and the gas hole or the like passing through the composite packing is clogged. It is to propose a cap of a mechanism that does not occur.

[0005]

[Means for Solving the Problems] The inventors of the present invention have made various studies on the above-mentioned problems and arrived at the present invention. That is, the present invention is a stretched film that can be mass-produced at low cost because of the stability of the mesh and fine pores of micro or less in the degassing part, and the groove that guides the gas is a plastic molded product that is easy to process. Due to the combination of the plastic molded product and packing material to stop the leakage of liquid, and the combination of the packing dedicated for induction for the metal cap that is difficult to process, the side that does not easily get dust, etc. It is a safe cap that does not leak even if the gas generated in the container is removed and the container is inverted or laid down.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. It should be noted that FIG. 1 shows the first of the present invention.
2 shows a second embodiment, and FIG. 3 shows a third embodiment.

(First Embodiment) The gas releasing cap 2 and the container 3 shown here are provided with an opening nozzle portion 3a.
The screw on the outer periphery of the cap 2 is screwed into the screw portion 2a of the cap 2, and the inner top surface of the cap 2 has a groove 2 for guiding the gas for discharging.
c is formed, and a screw take-up groove 2b is formed to be connected to the groove, and a microporous film 1a and a porous material or a packing material 1b in which small holes 1c are randomly processed is laminated on the inner top surface thereof. The combined packing 1 is incorporated. The built-in method may be upside down. Leakage prevention of the screw part is always sealed by the fitting force of the screw of the cap to the packing material.

[0008]

The gas (gas) spontaneously generated in the container always passes through the microporous film 1a of the composite packing 1, passes through the small holes 1c, and is in contact with the top surface of the cap inside the guide groove 2c. Through the screwless portion 2b connected to the groove to the lower portion of the cap. To prevent the liquid from leaking, the composite packing made of a soft material is sandwiched by the screwing force of the screw at the nozzle portion of the cap 2 and the container 3, and the composite packing made of the soft material conforms to the top surface of the nozzle and hermetically seals the circumference.

(Second Embodiment) In FIG. 2, the screwing relationship between the cap 2 and the nozzle screw portion of the container 3 is the same as that in the first embodiment. The difference in the formation is that the discharge guide groove is interlocked with 2c. Instead of the screwless groove, a groove 3b for removing a part of the screw portion of the bottle nozzle portion 3a is formed and connected to the groove 2c. The microporous film has the same properties and forms as in Example 1.

[0010]

The gas (gas) spontaneously generated in the container always passes through the composite packing material, passes through the guide discharge hole on the top surface of the cap, passes through the groove without nozzle screw, and is discharged to the lower part of the cap. To prevent the liquid from leaking, the soft material packing is sandwiched by the screwing force of the cap 2 and the threaded portion of the container nozzle, and the soft material packing conforms to the top surface of the nozzle and hermetically seals the circumference.

(Third Embodiment) In FIG. 3, in the case of the metal cap 4, the sealing property and the opening and closing of the cap are the same as those generally used. In the commonly used metal cap, the same composite packing material 1 as in Embodiments 1 and 2 is built in the cap, and the gas generated between the composite packing 1 and the inner top surface of the metal cap 4 is fed to the side. The packing material 5 that guides to is formed so as to be sandwiched. The packing material may be a randomly processed slit 5a, a porous material, a honeycomb, or the like, as long as it has a shape that guides generated gas.

[0012]

The gas spontaneously generated in the container is always the microporous film 1a of the composite packing material 1.
Passing through the packing material 5 that guides the gas,
It is discharged from the slit 4a on the side of the metal cap.
The airtightness is the same as the metal caps that are generally used on the market in structure and shape, and the airtightness is the same, and the opening and closing operation is the same as the current commercially available product. Is.

[0013]

The present invention is as described above in detail,
The degassing part is a combination of a sheet-shaped microporous film 1a of the composite packing 1 and the guide hole which is interlocked with it at a position where dust or the like is hard to attach, formed by a cap 2 of a plastic molded product which is easy to process and devise. In addition, as a measure against leakage, by devising a packing material 1b etc. that fits into the pouring part in the molding container etc. and incorporating a gas guide packing 5 for metal caps etc. that are more difficult to process, various types of containers can be used by taking advantage of each other. It is the gas (gas) release cap which combined the corresponding embodiment plans. When storing contents (liquid, solid, powder, etc.) that spontaneously generate gas (gas, etc.) or contents that require breathing etc. in a container etc., use this gas vent cap to damage the container Alternatively, it is a cap that can prevent leakage and guarantee the quality of the contents.

[Brief description of drawings]

FIG. 1 is an AA side sectional view, a bottom view, an enlarged sectional view of a packing portion, and a BB side sectional view showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line CC of the second embodiment of the present invention, a bottom view, an enlarged sectional view of a packing portion, and a sectional view taken along the line DD.

FIG. 3 is a plan view showing a third embodiment of the present invention, E-
It is an E side sectional view, and an expanded sectional view of a packing part.

[Explanation of symbols]

1 Composite packing 1a Microporous film 1b Porous material & packing with vent holes 1c vent hole 2 cap 2a Cap screw part 2b Threadless groove 2c Top surface groove in cap 3 containers 3a container nozzle 3b Nozzle threadless groove 4 metal caps 4a Vertical slit of metal cap (several circumferences) 5 Packings with guide holes

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3E084 AB01 BA01 CA01 CC01 CC03                       DA01 DB12 DB13 DC01 DC03                       FA09 FB01 FC02 GA04 GA08                       GB04 GB12 HA01 HB03 HC07                       HD01 KA01

Claims (2)

[Claims] 1. A film having a property that a composite packing 1 in which a microporous film and a packing material are laminated is built in an inner top surface of a cap, and the microporous film does not permeate a liquid but allows only a gas (gas) to pass therethrough. And The packing material that guides the gas is a porous material or small holes are randomly processed. In this way, the contents (especially liquid) in the container spontaneously generate a small amount of gas (especially liquid).
Cap for exclusive use of gas (gas) that is compatible with. 2. The inner top surface of the cap allows gas (gas) to pass through from the composite packing 1, and a removal guide groove for removing the gas (gas) out of the container, or a material that cannot be processed is The degassing cap of claim 1, wherein a different packing for induction is formed.