JP2003104417A - Inner plug and cap of liquid pour-out container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inner plug and a cap of a liquid pour-out container with which it is easy to place the inner plug and steam, moist open air, cooling water or the like can be prevented from being sucked into the cap when heating and filling, and a protective ring is prevented from rotating together with the cap to be raised when unsealing the cap. SOLUTION: The liquid pour-out container includes the inner plug including a fitting cylinder comprising a pour-out tube, an outer tube, an inner tube and a shoulder wall, and the cap comprising a cap body and the protective ring mounted on a lower end thereof. The protective ring is mounted on a lower end of a side peripheral wall of the cap body via a plurality of cuttable coupling pieces, and knurls formed to engage with each other are provided on an inner peripheral surface of the protective ring and on an outer periphery of the outer tube of the inner plug.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner plug and a cap of a heat-filled container, and more particularly to an inner plug and a cap of a liquid pouring container which can be removed together with the cap from the mouth of the container when the container is disposed of after use. .

[0002]

2. Description of the Related Art It has been conventionally practiced to remove an inner plug or a cap fitted to the mouth of a container after use of the container and separate and dispose of it. When the container is discarded, the protective ring is removed, and the inner plug is removed from the mouth of the container. At that time, a knurl is engraved on the inner circumference of the protective ring (protector ring 3) to insert the inner plug (cap body). It is well known in the art that the outer wall of 1) should not be easily separated from the outer wall (for example, an actual flat plate
-76106).

[0003]

However, in the case of the above publication, although the degree of fitting is enhanced by the knurl, only the slit is provided on the outer circumference of the cap body (1), and the inside of the knurl is provided over the entire circumference of the cap body. Since it does not engage with the circumference, the protector ring (3) was sometimes rotated together with the upper lid (2) when the upper lid (2) was first opened.

Further, the cap disclosed in the above publication prevents vapor, moist outside air, cooling water, etc. from being sucked into the cap when gradually cooled or rapidly cooled using warm water or normal temperature water during heating and filling. Since no means is provided, there is a problem that dew condensation adheres to the inside of the cap.

An object of the present invention is to solve the above-mentioned problems, and facilitates tapping of the inside plug during heating and filling, and vapor, moist outside air, cooling water, etc. are sucked into the cap. It is an object of the present invention to provide an inner stopper and a cap for a liquid pouring container, which prevents the protective ring from being rotated and lifted together with the cap when opening the cap.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is a fitting consisting of a pouring tube, an outer tube, an inner tube, and a shoulder wall as an inner plug and a cap of a liquid pouring container. With a barrel,
A liquid pouring container comprising an inner stopper fitted to a container mouth and a cap consisting of a cap body and a protection ring attached to a lower end of the cap body, wherein the protection ring has a plurality of severable connections. Attached to the lower end of the side wall of the cap body by one piece,
A knurled structure is formed on the inner peripheral surface of the protection ring and the outer peripheral surface of the inner plug to engage with each other.

In order to prevent the outside air from being sucked into the cap at the time of heating and filling, an engaging ring is provided upright along the peripheral edge of the shoulder wall of the inner plug, and a member fitted to the engaging ring at the lower end of the side peripheral wall of the cap. The structure is characterized by the provision of mating grooves, and in order to improve the drainage of the cooling water, each knurl has a different mountain height to form a ventilation hole. And adopt the configuration.

In order to prevent the protective ring from touching and rotating when opening and closing the cap in use, a bulging ring is provided at the lower end of the side peripheral wall of the cap.

In order to facilitate tapping, a structure is adopted in which a ventilation groove is provided on the inner circumference of the outer tube of the inner plug, and
In order to facilitate the tightening of the cap before plugging, a positioning piece is hung vertically around the partition wall of the spout barrel.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, A is a container, which is made of glass or synthetic resin. B is an inner plug made of PE or other soft synthetic resin, and C is a cap made of PP or other hard heat-resistant synthetic resin. A fitting protrusion 2 and a neck ring 3 are provided on the outer periphery of the mouth portion 1 of the container A.

As shown in FIG. 2, the inner plug B includes a fitting cylinder portion 4 fitted into the mouth portion 1 and a screw fitting cylinder 6 connecting the spout cylinder 5 to each other. Reference numeral 4 includes an outer cylinder 7, an inner cylinder 8 and a shoulder wall 9. On the lower inner circumference of the outer cylinder 7, an engagement projection 10 that engages with a fitting projection 2 provided on the outer circumference of the mouth 1 of the container A.
A plurality of notches 11 are provided on the engaging projection 10 to facilitate the removal of the stopper.
A shallow ventilation groove 12 extending upward from is engraved. A knurl 13 is provided around the entire outer circumference of the outer cylinder 7, and an engagement ring 15 having an inclined surface 14 on the inner side is provided upright on the peripheral edge of the shoulder wall 9 at the upper end of the outer cylinder 7.

The inner cylinder 8 has an enlarged diameter so that it can be fitted to the inner circumference of the mouth portion 1 with a certain interference.

The threaded cylinder 6 is erected upright along the inner peripheral edge of the shoulder wall 9 so as to extend the inner tube 8 upward. A screw 16 is screwed on the outer circumference of the threaded cylinder 6 and the upper end thereof is provided. A support wall 17 for the injecting cylinder 5 extending inward is continuously provided in the. A spout 18 is formed at the upper edge of the spout barrel 5 so as to expand and curve outward, and a partition wall 19 is connected to the lower end thereof.

A wedge-shaped positioning piece 20 is vertically provided on the periphery of the partition wall 19 at equal intervals along the lower end of the spout cylinder 5. The back surface of the partition wall 19 is thin along a predetermined shape. A V-shaped cutting groove 21 is provided, and the partition wall 19 inside thereof is a removal portion 22. A finger hook ring 23 is provided on the upper surface of the removing portion 22 via a connecting piece.

As shown in FIG. 3, the cap C is composed of a cap body 30 and a protection ring 31 connected to the lower end of the cap body 30. The cap body 30 includes a top wall 32 and a side peripheral wall 33, and a lower surface of the top wall 32 has a sealing ring 34 for sealing the spout lip portion 18 when the lid is closed.
Is installed vertically. A screw 35 is screwed on the inner circumference of the side peripheral wall 33, and a knurl 36 is engraved on the outer circumference. An engaging groove 38 having an inclined surface 37 is engraved on the lower end surface of the side peripheral wall 33, and a bulging ring 39 extending from the lower side and extending from the outer circumference is formed on the outer circumference of the lower end.

The protection ring 31 is connected to the cap body 30 via a plurality of easily cut connecting pieces 40 arranged at equal intervals, and the inner circumference of the protection ring 31 has a knurl 41 over the entire circumference. Is engraved. The number of crests of the knurl 41 is the knurl 1 on the outer circumference of the outer cylinder 7 of the inner plug B.
The number of peaks is the same as that of 3, but the height of the peaks is knurled 41.
Is higher. When capping, the outer circumference of the outer cylinder 7 is expanded, so that the knurls 41 and 13 are firmly meshed with each other, the protective ring 31 is fitted to the outer cylinder 7, and the air permeability between the two is not lost. There is.

Next, the function and effect based on the structure of the liquid pouring container of the present invention will be described. First, the hot filling of the content liquid will be described. The container is filled with the content liquid sterilized by heating. At the time of heating and filling, the cap C is fitted on the inner plug B. At this time, the inner plug B is attached to the jig D as shown in FIG. 4, and the wedge-shaped positioning piece 20 of the inner plug B is attached. By being locked by the positioning stopper D1 of the jig D, the rotation is prevented, and capping is performed easily and efficiently. When the cap C is fastened, the side peripheral wall 33
The engaging groove 38 of the cap C and the engaging ring 1 of the inner stopper B are arranged so that the inclined surface 37 at the lower end of the stopper engages the inclined surface 14 of the inner stopper B.
5 is fitted and the hermeticity in the cap C is maintained.

Upon heating and filling, as shown in FIG.
After filling the content liquid, the inner plug B fitted with the cap C is fitted into the mouth portion 1 of the container A by tapping, after which relatively high temperature heating water is poured, and successively lower temperature heating water and room temperature Cooling water is poured to cool the content liquid. Therefore, cooling is performed in a situation where steam is trapped, and the pressure inside the cap C is reduced as the cooling is performed. When the sterilization temperature is low, cooling water is poured from the beginning to be cooled.

During cooling, the inside of the cap C is an inner plug B.
Engaging ring 15 and the engaging groove 3 at the lower end of the cap-side peripheral wall 33
Since it is sealed by 8, the suction of steam or cooling water into the cap C is prevented.

Further, at the time of tapping, the outer periphery of the inner cylinder 8 is fitted to the inner periphery of the mouth portion 1 with a certain tightening margin, and the engaging projection 10 of the outer cylinder 7 is below the fitting projection 2. And the inner plug B is engaged with the mouth portion 1
Be fitted to. At this time, the air in the fitting tube portion 4 is discharged through the ventilation groove 12 and the cutout portion 11, so that the stopper is easily performed. Then, the inside wall of the container A is hermetically sealed by bringing the shoulder wall 9 together with the inner cylinder 8 and the outer cylinder 7 into close contact with the upper end surface of the mouth 1. Therefore, during cooling, steam, moist outside air, cooling water, or the like is not sucked from between the inner plug B and the container A.

With cooling, steam, moist outside air, etc., are provided on the lower surface of the fitting protrusion 2 of the mouth portion 1 and the engaging protrusion 10 of the outer cylinder 7 of the inner plug B.
And a peripheral part b between the inner plug outer cylinder 7 and the lower end of the side peripheral wall 33 of the cap C to be condensed, and cooling water is also attracted. , Fall along the outer peripheral surface of the container mouth 1 and the peripheral portion b
The moisture of the above is transmitted and dropped between the outer circumference of the outer cylinder 7 and the protection ring 31. At that time, moisture is guided downward through the gap between the knurls 41 and 13 between the outer circumference of the outer cylinder 7 and the inner circumference of the protective ring 31 by capillary action. Therefore, the water in the vicinity of the cap C drops immediately, so that the container A is efficiently dried.

Next, the function and effect of using the container and the disposal after use will be described. When opening the cap when starting to use the container A, if the cap C is rotated,
The knurl 41 on the inner circumference of the protection ring 31 has an inner plug B.
Since it is meshed with the knurl 13 of the above, the connecting piece 40 can be easily cut without rotating together with the cap C. After that, if the protective ring 31 is pushed down as necessary, the lower end of the outer periphery of the inner plug B is expanded at the time of tapping, so that the knurls 41 and 13 are more strongly meshed with each other and a firm fit is achieved. can get.

When the cap C is opened and closed when the container is used, since the bulging ring 39 is formed at the lower end of the side peripheral wall 33, the fingertip is prevented from coming into contact with the protection ring 31, and the knurled 36 portion on the outer periphery of the cap C is closed. The cap C can be easily opened and closed because it is gripped and rotated.

In the inner plug outer cylinder 7, the engaging projection 10 is provided in the container mouth portion 1.
Since it engages with the fitting protrusion 2 of No. 3, the inner plug B cannot be easily pulled out, but even if the cap C is fitted and twisted, the protection ring 31 surrounds the lower portion of the outer cylinder 7. Therefore, the expansion of the outer cylinder 7 is prevented, and the inner plug B does not come off.

For disposal after using the container, first, the cap C is removed and the protective ring 31 is pulled upward, so that the degree of fitting of the knurls 13 and 41 is weakened, so the protective ring 31 can be easily removed. it can.

Then, the cap C is fitted over the inner plug B again, and the cap C is twisted in the direction of the arrow as shown in FIG. It can be removed from the mouth 1 of the container A. At that time, since the bulging ring 39 is formed at the lower end portion of the side peripheral wall 33, the fingertip is caught and does not slip, so that the moment applied to the cap C can be increased and the cap can be easily removed.

[0027]

Since the present invention is constructed as described above, it has the following effects. Since the engagement groove that engages with the engagement ring provided on the outer circumference of the shoulder wall of the inner plug is provided at the lower end of the cap, it is possible to prevent suction of cooling water and surrounding moist outside air when cooling after heating and filling. I was able to.

Since the inner peripheral surface of the protection ring and the outer peripheral surface of the inner plug are provided with knurls so as to be engaged with each other, the cap and the protection ring are surely cut when the cap is opened,
The protective ring no longer comes off the inner plug during use.

[Brief description of drawings]

FIG. 1 is a partially sectional front view of a liquid pouring container of the present invention.

2A and 2B are explanatory views of the inner plug, in which FIG. 2A is a front view, FIG. 2B is a sectional view, and FIG.

FIG. 3 is a partial cross-sectional front view of the cap.

FIG. 4 is an explanatory diagram at the time of capping.

FIG. 5 is an explanatory diagram during cooling.

FIG. 6 is an explanatory diagram when the inner plug is opened.

[Explanation of symbols]

A container B inner stopper C cap 1 mouth 5 pouring barrel 6 screwed cylinder 7 outer cylinder 8 inner cylinder 9 shoulder wall 12 Ventilation groove 13 knurled 14 slope 15 Engagement ring 19 partitions 20 Positioning piece 30 cap body 31 Protective ring 32 Top wall 33 Side wall 37 Inclined surface 38 Engagement groove 40 connecting piece 41 knurled

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Atsushi Atsushi             Stock exchange, 3-2-6 Oshima, Koto-ku, Tokyo             Inside the company Yoshino Industry F-term (reference) 3E084 AA04 AA12 AA24 AB01 BA03                       CA01 CC03 DA01 DB02 DB06                       DB12 DB13 DC03 EA04 EB02                       EC03 FB02 FC04 GA04 GA08                       GB04 GB08 HD04 KA12 LA03                       LA17 LB02 LB07 LD01

Claims (6)

[Claims] 1. A spouting cylinder, a fitting cylinder portion including an outer cylinder, an inner cylinder, and a shoulder wall, and an inner stopper fitted to a container mouth, a cap body, and a lower end thereof. A liquid pouring container comprising a protective ring and a cap, the protective ring being attached to the lower end of the side peripheral wall of the cap body by a plurality of severable connecting pieces, and the inner peripheral surface of the protective ring and the inner stopper. An inner plug and a cap of a liquid pouring container, characterized in that knurls formed so as to mesh with each other are provided on the outer circumference of the outer cylinder. 2. An engagement ring is provided upright along a peripheral edge of a shoulder wall of the inner plug, and an engagement groove for fitting the engagement ring is provided at a lower end of a side peripheral wall of the cap. The inner stopper and cap of the liquid dispensing container according to 1. 3. The inner stopper and the cap of the liquid pouring container according to claim 1, wherein the knurls have different mountain heights to form ventilation holes. 4. The inner stopper and cap of the liquid pouring container according to claim 1, wherein a bulging ring is provided at the lower end of the side peripheral wall of the cap. 5. The inner stopper and cap of the liquid pouring container according to claim 1, wherein a ventilation groove is provided on the inner circumference of the outer cylinder of the inner stopper. 6. The inner stopper and cap of the liquid pouring container according to claim 1, wherein a positioning piece is vertically provided on a peripheral edge of the partition wall of the pouring cylinder.