JP2559266Y2 - Inside stopper - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a structure of an inner plug formed of a synthetic resin or the like which is firmly fitted to various container openings, and in particular, the inner plug body is very easily removed from the container opening. Regarding the inside plug that can be.

[0002]

2. Description of the Related Art As is well known, in recent years, there has been a demand for a one-time tapping in a manufacturing process, while improving the drainage property of contents such as seasonings, preventing foreign substances from entering, and the like. Inner plugs made of synthetic resin that fit tightly into the container opening are often used.

[0003] This conventional inner plug has an outer cylinder fitting portion which is in close contact with the container mouth, and a projection for engaging with the projection of the container mouth is formed on the inner wall surface of the outer cylinder fitting portion. In general, the main body of the inner plug is press-fitted from above the mouth of the container by a one-time tapping so that the inner body is in close contact with the mouth of the container so that it cannot be removed.

Incidentally, the container into which such an inner plug is fitted is generally formed of a material such as glass or synthetic resin different from the inner plug, and furthermore, the virgin sealability is ensured. For the purpose of doing so, the inner stopper is attached to the container mouth in a state that it is difficult to remove because it is attached, for example, when collecting empty containers and reusing them, the inner stopper interferes with cleaning work, etc. At present, it is a major factor that hinders the reuse of wastewater.

The present invention has been made in view of such a situation, and its purpose is to easily remove the inner plug from the container opening when the container is empty. Accordingly, it is an object of the present invention to provide a completely new inner plug that can be used for reusing resources while ensuring virgin sealability.

[0006]

In order to achieve the above object, in the inner plug according to the present invention, an outer cylinder fitting portion fitted to a container mouth of a container, and an outer cylinder fitting portion of the outer cylinder fitting portion. A cylindrical pouring portion connected to the upper portion, a cap portion that opens and closes the cylindrical pouring portion and is disposed so as not to cover the outer cylinder fitting portion, and an inner peripheral surface of the outer cylinder fitting portion. The bulging engagement projection and the outer cylinder fitting portion are integrally extended outward from the outer peripheral surface of the outer cylinder fitting portion, and a base portion thereof is connected to the outer cylinder fitting portion and a cap portion. A gripping piece which can be visually recognized from the outside without opening, and a groove formed below the position where the engagement protrusion is provided, and formed from a base of the gripping piece along a circumferential direction of the outer cylinder fitting portion. And a lower portion than the thin portion of the outer cylinder fitting portion by pulling the grip portion outward. It is characterized in that is configured to be disconnected.

[0007] Further, as another means for achieving the above object, in the inner plug according to the present invention, an outer cylinder fitting portion fitted to a container mouth of a container, and an upper portion of the outer cylinder fitting portion. A cap portion disposed to open and close the tubular pouring portion and not to cover the outer cylinder fitting portion, and to expand on an inner peripheral surface of the outer cylinder fitting portion. The projection formed, the thin portion formed along the circumferential direction of the inner peripheral wall surface below the portion where the engagement projection is provided, and the length from the lower end to the thin portion of the outer cylinder fitting portion. And a notch which is formed from the outside and can be visually recognized from the outside without opening the cap portion. It is characterized in that a portion below the thin portion of the joint portion is cut off.

[0008]

Therefore, in the inner plug according to the present invention, when the inner plug body is to be removed from the container mouth, the gripping piece is pulled outward or the peripheral edge of the notch is removed. By pulling outward, the outer cylinder fitting portion of the inner plug main body is easily separated along the thin portion, and as a result, the adhesion of the inner plug main body that is in close contact with the container opening is attenuated, or Is released, so that the inner plug can be easily removed from the container opening.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

FIG. 1 to FIG. 4 show a first embodiment of the present invention. An inner plug 1 according to this embodiment is a container 2 formed of a material such as glass or synthetic resin into a predetermined shape. Inner plug main body 10 fitted into the container opening of the container, and the inner plug main body 1
And a cap portion 30 which is connected to the upper portion of the main body 0 via a hinge portion 11 so as to be freely detachable. The inner plug main body portion 10, the hinge portion 11 and the cap portion 30 are made of synthetic resin such as polyethylene. And are integrally formed.

The inner plug main body 10 includes an outer tube fitting portion 12 fitted to the container opening of the container 2, a cylindrical pouring portion 13 connected to an upper portion of the outer tube fitting portion 12, A cut-off film portion 15 formed on the inner bottom portion 14 of the shape pouring portion 13, a substantially annular knob 16 connected to the upper portion of the cut-off film portion 15, and an inner portion connected to a lower portion of the inner bottom portion 14. A tube fitting portion 17;
An engagement projection 18 bulging out on an inner peripheral surface of the outer cylinder fitting portion 12, a gripping piece 19 integrally extending outward from an outer peripheral surface of the outer cylinder fitting portion 12, A groove-shaped thin portion 20 formed from the base of the gripping piece 19 along the circumferential direction of the outer cylinder fitting portion 12.

The outer cylinder fitting portion 12 is fitted on the outer peripheral surface of the container mouth, and the inner cylinder fitting portion 1 is provided on the inner peripheral surface of the container mouth.
7 is inserted. That is, the container opening of the container 2 is fitted between the outer tube fitting portion 12 and the inner tube fitting portion 17, and the inner plug 1 is not displaced from the container opening of the container 2 by the engaging projection 18. It is configured to be tightly fitted and locked so as not to fall off easily, and to maintain virgin sealability. Needless to say, the engagement projection 18 is formed in a ring shape along the inner circumferential direction of the outer cylinder fitting portion 12, or a point-shaped projection is formed on the inner circumference of the outer cylinder fitting portion 12. It may be formed by projecting a plurality of pieces along the direction.

The cylindrical pouring portion 13 is connected to the upper portion of the outer tube fitting portion 12, and the upper end thereof is slightly expanded outward to improve the drainage effect. .

As shown in FIG. 4, the cut-off film portion 15 is formed in a thin shape on the inner bottom portion 14 of the cylindrical pouring portion 13, and pulls the link-shaped knob 16 upward. It is configured so that it can be easily torn off.

The gripping piece 19 has a substantially L-shape in plan view, and its base is connected to the outer cylinder fitting portion 12. This gripping piece 19 normally holds the cap 3
Since it is formed on the lower surface side of the outer cylinder fitting portion 12 which is not concealed by 0, it is possible to check whether the gripping piece 19 has been tampered without opening the cap portion 30 of the container 2 one by one when the inner plug is attached. The virgin sealability can be easily confirmed without touching the hand. In addition, in FIG.
When the gripping piece 19 is not used, it is a connecting piece for connecting and fixing the middle part of the gripping piece 19 and the outer cylinder fitting portion 12.
1 is configured such that when the gripping piece 19 is pulled out of the outer cylinder fitting portion 12, the connection state is easily released.

As shown in FIG. 4, the thin portion 20 is formed on the inner peripheral wall surface of the outer cylinder fitting portion 12 at a position below the position where the engaging projection 18 is provided. The cross-sectional shape is formed substantially in the shape of a letter, and the thin portion 20 is formed along the inner circumferential direction from a portion connected to the base of the gripping piece 19. Thus, the outer cylinder fitting portion 1
For example, the cross-sectional shape of the thin portion 20 formed on the inner peripheral wall surface of the second protrusion is formed not in a substantially rectangular shape but in a substantially f-shape, and is formed at a position below the position where the engagement protrusion 18 is provided. The reason is that when the inner plug 1 is plugged into the container mouth of the container 2 once, the thin portion 20 is not broken by the plugging pressure. Therefore, the cross-sectional shape of the thin portion 20 is not limited to the F-shaped cross section as long as the thin portion 20 does not break due to the tapping pressure when it is plugged once.

On the other hand, the cap portion 30 connected and removably connected via the hinge portion 11 is formed to have a substantially inverted concave cross section. When the lid is closed, the cap portion 30 is provided at the lower end of the inner peripheral surface. The stop groove 31 is connected to the upper part of the outer tube fitting portion 12 and fits with the locking projection 23 of the fastening edge portion 22 protruding in a ring shape on the outer periphery of the cylindrical pouring portion 13. It is configured to be engaged. Of course, when the lid is closed, the ceiling portion 32 of the cap portion 30 is pressed against the upper end portion of the tubular pouring portion 13 so that the contents do not leak even if the container 2 falls down. Reference numeral 32 in the drawing denotes a finger hook protruding from the cap 30.

Next, the inner plug 1 constructed as described above.
Is attached to the container opening of the container 2 and the inner plug 1 is removed from the container opening in a state where the contents of the container 2 are empty, with reference to FIGS.

First, in a state in which the inner plug 1 shown in FIG. 5 is mounted, the gripping piece 19 is gradually pulled in the outer peripheral direction, and as shown in FIG. It easily breaks along the thin part 20, and as shown in FIG.
Only the portion above the locking projection 18 of the inner plug main body 10 remains in a state fitted to the container opening. In this state, since the lower portion of the inner plug main body 10 below the locking projection 18 is removed, the inner plug main body 10 can be easily removed from the container opening.

FIGS. 8 to 11 show a second embodiment of the present invention. In the inner plug 1 according to this embodiment, the cap portion 30 of the inner plug 1 of the first embodiment is eliminated. The gripping piece 1 of the first embodiment, which is constituted only by the inner plug main body 10.
9 is formed at the portion of the outer cylinder fitting portion 12 to which the base portion 9 is connected, the front shape is formed into an inverted substantially L-shape, and the gripping piece 19 is formed by molding. By pulling out the gripping piece 19 from one side edge and pulling the gripping piece 19 out of the outer cylinder fitting part 12 while holding it, the outer cylinder fitting part 12
Is configured to break along the thin portion 20 and the arrangement of the thin portion 20 is provided above the locking projection 18. Therefore, the same reference numerals as in the first embodiment denote the same in the drawings, and a detailed description thereof will be omitted here. Reference numeral 24 in the figure denotes a male screw protruding from the outer peripheral surface of the fastening edge portion 22. The male screw 24 and a female screw of a cap (not shown) formed separately. By screwing, the cap can be detachably attached to the inner plug main body 10.

By forming the inner plug main body 10 according to this embodiment, the outer cylinder fitting portion 12 of the inner plug main body 10 has no projecting member at all, so that a finger can be caught. There is an advantage that the usability is improved.

Further, in this embodiment, the position of the thin portion 20 is provided above the locking projection 18. Therefore, when the gripping piece 19 is pulled in the outer peripheral direction, the engagement of the outer cylinder fitting portion 12 is reduced. The lower part is removed from the stop projection 18 and the inner plug body 1 is removed.
0 is a state in which only the container opening is sandwiched between the outer tube fitting portion 12 and the inner tube fitting portion 17, and therefore, the inner plug body 10 is pulled with a light operating force to pull it upward. The stopper body 10 can be easily removed from the container opening.

In each of the above-described embodiments, the case where the inner plug 1 is configured as shown in the drawings has been described as an example. However, the present invention is not limited to this, and may be of other shapes. The present invention can be applied to not only an inner plug formed of a synthetic resin but also an inner plug formed of a metal material.

In each of the above embodiments, the thin portion 20 is
The case where the outer cylinder fitting portion 12 is formed on the inner peripheral wall surface has been described as an example. In the present invention, for example, the outer cylinder fitting portion 12 is formed on the locking projection 18 or the outer peripheral surface of the outer cylinder fitting portion 12 is formed. It can also be formed at the position where the locking projection 18 is formed on the wall surface or at a position above or below the position.

[0025]

As described above, in the inner plug according to the present invention, when the inner plug body is removed from the container mouth, the gripping piece is pulled outward or the notch is cut. By pulling the peripheral portion of the portion outward, the outer cylinder fitting portion of the inner plug main body can be easily separated along the thin portion, so that the inner plug can be extremely easily operated by the container. While being removable from the mouth, the outer cylinder fitting portion in which the gripping piece or the cut portion is formed is configured so as not to be hidden by the cap portion in a normal state, so when the inner plug is attached,
It is easy to check whether the gripping piece or the cut portion has been tampered without opening the container without opening the cap etc., so it is easy to check the virgin sealability and when the container is empty, Since the inner plug of a different material can be removed from the container, there is an excellent effect that the reusability of resources is greatly improved and resource saving can be achieved.

[Brief description of the drawings]

FIG. 1 is a front view of an inner plug according to a first embodiment of the present invention.

FIG. 2 is a plan view of the inner plug.

FIG. 3 is a bottom view of the inner plug.

FIG. 4 is a sectional view of the inner plug.

FIG. 5 is a perspective view showing a state where the inner plug is attached to a container mouth of the container.

FIG. 6 is a perspective view showing a state in the middle of a step of removing the inner plug from the container opening of the container.

FIG. 7 is a perspective view showing a state where the inner plug is removed from a container opening of the container.

FIG. 8 is a front view of the inner plug according to the second embodiment of the present invention.

FIG. 9 is a plan view of the inner plug.

FIG. 10 is a bottom view of the inner plug.

FIG. 11 is a sectional view of the inner plug.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inner stopper 2 Container 10 Inner stopper main body 12 Outer cylinder fitting part 19 Grip piece 20 Thin part 40 Cut part

Claims (2)

(57) [Scope of request for utility model registration] An outer cylinder fitting portion fitted to a container opening of a container.
And a cylindrical pouring part connected to the upper part of the outer cylinder fitting part,
Open and close this cylindrical pouring part and cover the outer cylinder fitting part
Between the cap part and the outer cylinder fitting part
An engagement projection formed by bulging on the inner peripheral surface and the outer cylinder fitting portion
Extending integrally from the outer peripheral surface to the outside, and
The base is connected to the outer cylinder fitting portion and the cap is
Gripping piece that is visible from outside without opening the
It is formed below the position where the engagement protrusion is provided, and
Formed from the base of the cantilever along the circumferential direction of the outer cylinder fitting part
And a groove-shaped thin portion, and by pulling the grip portion outward, a portion below the thin portion of the outer cylinder fitting portion is cut off. Inside plug. 2. An outer cylinder fitting portion fitted to a container opening of a container.
And a cylindrical pouring part connected to the upper part of the outer cylinder fitting part,
Open and close this cylindrical pouring part and cover the outer cylinder fitting part
Between the cap part and the outer cylinder fitting part
An engagement protrusion bulging out on the inner peripheral surface;
A thin film formed along the circumferential direction of the inner peripheral wall below the
The thickness from the lower end of the outer cylinder fitting part to the thin part
Outside without opening the cap
And a notch portion visible from the portion, and by pulling a peripheral portion of the notch portion outward, a portion below the thin portion of the outer cylinder fitting portion is cut off. An inner plug characterized by comprising.