JP2000238826A - Cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap wherein gas in a container can be efficiently permeated, generated gas can be easily discharged outside, and contents can further be protected from leakage. SOLUTION: The cap 10 is mounted on a tube nozzle 12 of a tube container 11 holding contents which may generate gas, and it seals a tip opening 20 of the nozzle 12 while the generated gas can permeate. The cap 10 comprises a cap body 15 including a fitting portion 13 into which the tube nozzle 12 is fit, an opening 17 formed through a top plate 16 of the fitting portion 13, and a plate member 18 made of a gas-permeable water-impervious material which is placed in tight contact over the top plate 16 while closing the opening 17 from the inside. A protective wall member 19 incorporating a vent hole 21 is integrally formed with the top plate 16, which covers the opening 17 formed through the top plate 16 of the fitting portion 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap for a container for containing a gas generating content.

[0002]

2. Description of the Related Art A cap is attached to an outlet when a container is not used to seal the contents. That is, there is a cap provided with a fitting portion to seal the opening at the distal end of the outlet, or a cap having an elastic packing member brought into contact with the distal end of the outlet to enhance the sealing property.

[0003] When the contents of the cap generate gas, it is difficult to permeate the generated gas, and the internal pressure increases, which may damage the container. Alternatively, there are caps that allow gas to permeate, such as wine cork, but once opened, it is difficult to open and close the stopper easily and repeatedly.

An object of the present invention is to provide a cap that allows gas in a container to efficiently pass therethrough, allows the generated gas to easily escape to the outside, and protects the contents without leakage.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a cap to be attached to an outlet of a container, the opening being formed through a top surface of a cap body, and the top surface being closed while closing the opening. The above object has been achieved by providing a cap comprising a plate member made of a gas-permeable water-blocking material which is disposed in close contact with and covering the substrate.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a cap 10 according to the present embodiment is mounted so as to cover a tube nozzle 12 which is a discharge port protruding from a distal end of a tube container 11.

The inside of the tube container 11 contains an internal solution that generates gas.

The cap 10 of this embodiment has a fitting portion 13 into which the tube nozzle 12 of the tube container 11 is fitted.
Body 15 provided with a top surface 1 of cap 10
6 and a plate member 18 made of a gas-permeable water-blocking material that is tightly placed over the top surface 16 while closing the opening 17.

A female screw is formed on the inner peripheral surface of the fitting portion 13, and the female screw is screwed into a male screw on the outer peripheral surface of the tube nozzle 12, thereby connecting the tube nozzle 12 to the fitting portion 1.
3 and seals the distal end opening 20 of the tube nozzle 12.

The opening 17 is formed, for example, in a substantially circular shape at the center of the top surface portion 16.
Of the protective wall member 1 so as to cover
9 is laterally extended along the opening 17 from the outer surface of the top surface portion 16. Also, the top surface portion 1 of the protective wall member 19
6, a ventilation hole 21 is partially interposed at the connection portion to the outer side surface, and the inside of the container inside the fitting portion 13 and the top surface portion 16
Communicates with the outside atmosphere.

The plate member 18 is formed of a material having water-shielding property, that is, liquid-tightness and gas permeability, such as a synthetic resin such as silicon and low-density polyethylene, and cork, and has a thickness of 0.01 to 0.01 mm. About 5mm, preferably 1m
A plate member having an elasticity of about m and having a planar shape slightly smaller than the cross section of the fitting portion 13. In addition, it is preferable that the plate member 18 is formed using a synthetic resin, whereby industrial control of air permeability is facilitated.

The plate member 18 is inserted into the fitting portion 13 of the cap 10 toward the top surface portion 16 and the opening 1
7 are tightly arranged so as to cover the top surface 16 while closing the tube 7 from the tube nozzle 12 side.

When the tube container 11 is not used, the cap 10 according to the present embodiment is screwed and attached so as to cover the tube nozzle 12. During such mounting, a plate member 18 is interposed between the tip of the tube nozzle 12 and the top surface portion 16,
The tip opening 20 is sealed while the liquid sealing property is improved by the liquid tightness and elasticity.

Since the plate member 18 for closing the opening 17 has gas permeability, the gas generated from the internal solution is transmitted therethrough, and this gas is easily passed out of the container through the opening 17 and the vent hole 19. You can escape.

According to this embodiment, since the protective wall member 19 is provided so as to cover the opening 17 from the outside, the plate member 18 is pushed inward from the opening 17 by a rod-shaped member or the like, and the plate member 18 is removed. A malfunction such as removal can be easily avoided.

The container to which the cap is mounted is not necessarily a tube container, but may be a bottle container. For example, a replacement container such as a squeeze container, a delami container, a popple container, a pump container, or the like may be used. Further, the contained contents may be in the form of paste or powder. Furthermore, the ventilation hole interposed in the protective wall member can be formed so as to penetrate the protective wall member itself as well as the joint portion to the top surface.

[0017]

According to the cap of the present invention, the gas in the container can be efficiently transmitted, the generated gas can easily escape to the outside, and the contents can be protected without leakage.

[Brief description of the drawings]

FIG. 1 is a partially broken front view illustrating a configuration of a cap according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cap 11 Tube container 12 Tube nozzle (extraction port) 13 Fitting part 15 Cap body 16 Top surface 17 Opening 18 Plate member 19 Protective wall member 20 Tip opening 21 Vent hole

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E084 AA03 AA12 AB01 BA03 CA01 CB02 CC03 CC04 CC10 DA01 DB12 FA09 FB01 GA01 GB01 KA01

Claims (3)

[Claims] 1. A cap attached to an outlet of a container for accommodating contents generating gas, the cap having a fitting portion into which the outlet is fitted, and a top surface of the cap main body. A cap including an opening formed through the plate, and a plate member made of a gas-permeable water-blocking material that is tightly placed over the top surface while closing the opening. 2. The cap according to claim 1, wherein a protective wall member interposed with a ventilation hole is provided integrally with the top surface portion so as to cover an opening formed through the top surface portion from outside. 3. The cap according to claim 2, wherein the ventilation hole is interposed at a joining portion of the protective wall member to a top surface portion.