JPH06329167A - Container cap - Google Patents

Abstract

PURPOSE:To enable smooth reuse after use, by providing a pouring cylinder through a ring-shaped thin portion at the inner periphery of an internal plug and forming a column at the wall of pouring cylinder. CONSTITUTION:A plugging groove 21 formed at an internal plug 2 of a container cap is driven in the edge 11 of the continer opening 7 to seal a bottle. When it is unsealed, the external cover 6 is removed and a pulling tab 43 is drawn to break a thin portion 31 and remove an opening plate 41 to form the pouring outlet. After it has been used, the top of pouring cylinder 4 is strongly pushed down or laterally with a finger. In this way, since the column 5 formed at the pouring cylinder 4 transfers the stress well, the stress is concentrated on the thin portion 3 formed on the short top plate 23 and hence, the thin portion is easily broken. At last, the pouring cylinder 4 is pulled out with fingers and easily torn along the thin portion from the broken spot and the pouring cylinder is removed to form a large washing hole. As this washing hole is large, washing water can be efficiently charged or discharged from the washing hole as the internal plug 2 is attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plastic container or the like which is sealed by tapping the mouth thereof, and when used, the sealing plate inside the pouring tube is opened and the contents are guided by the pouring tube. Regarding a container cap that can be taken out.

[0002]

2. Description of the Related Art Conventionally, a container cap for sealing a plastic container or the like has a stopper groove having a shape capable of fitting an edge portion of a container mouth at the lower end, and an outer lid fitting on the upper portion of the stopper groove. Forming a part, forming a pouring tube inside thereof, forming a sealing plate on the inner bottom part of the pouring tube, and forming an opening plate of an appropriate shape by surrounding the sealing plate with a thin portion. A stoppering type is widely used, which is composed of an inner plug formed by forming a knob piece on the upper surface and an outer lid covering the inner plug.

When sealing a plastic container or the like, the cap opening groove of the container cap is forcibly driven into the container mouth for sealing, and when the container is opened, the outer lid is removed and the knob piece is pulled. The opening is removed by breaking the thin plate to remove the opening plate.

[0004]

However, in the conventional container cap described above, the inner plug cannot be removed from the container once it is capped, and the container cap is washed for reuse after the contents are used up. In this case, it takes a long time to put the washing water in and out through the small spout, so that there is a problem that the washing cannot be performed efficiently.

[0005]

The present invention has been made in order to solve this problem, and its gist is to provide a ring-shaped thin-walled portion on the inner circumference of an inner plug fitted in the container mouth. Is provided with an opening plate through a thin portion for forming a spout, and a columnar portion is formed on the cylinder wall of the spout cylinder. Is.
Hereinafter, the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a front view of a cross section of a container with a container cap plugged into the container, FIG. 2 is a side view of FIG. 1, and FIG. FIG. 6 is a front view of a cross section showing a state in which the dispensing cylinder is removed afterward. As shown in FIGS. 1 to 3, the present invention provides a spout cylinder 4 on the inner circumference of an inner plug 2 fitted in a container mouth 1 via a ring-shaped thin portion 3, and the spout cylinder 4 The container plate is characterized in that the opening plate 41 is provided inside the container through the thin portion 31 for forming the spout, and the columnar portion 5 is formed on the cylinder wall of the spout cylinder 4.

The container cap according to the present invention is shown in FIG.
As shown in FIG. 3, a tapping groove 21 having a shape capable of fitting the edge portion 11 of the container mouth portion 1 is provided at the lower end, and an outer surface having a screw thread capable of being screwed into the inner surface of the outer lid 6 at the upper portion of the tapping groove. The lid fitting portion 22 is formed, the short top plate 23 is formed inward from the upper end of the outer lid fitting portion 22, the pouring tube 4 is formed inside thereof, and the sealing plate is formed on the inner bottom of the pouring tube 4. An inner plug 2 formed by forming an opening plate 42, an opening plate 41 having an appropriate shape so as to be surrounded by the thin portion 31 on the sealing plate 42, and forming a knob piece 43 on the upper surface of the opening plate.
And an outer lid 6 covering the inner plug 2.

A thin portion 3 is formed on the short top plate 23 so as to surround the pouring tube 4 so as to surround the pouring tube 4, and a columnar portion 5 is formed on the pouring tube 4. is there.

As shown in FIGS. 1 and 2, when a plastic container or the like is sealed using the container cap 1,
The tapping groove 21 formed in the inner plug 2 of the container cap is forcibly driven into the edge 11 of the container mouth to seal it, and when opening this, the outer lid 6 is removed and the tab 43 is pulled to pull out the thin portion. The opening plate 41 is removed by breaking from 31 to form a spout.

After the contents have been poured out of the spout through the spout 4 and used, the top portion 44 of the spout 4 is strongly squeezed with a finger as shown in FIG. Or by pressing down as shown at 72,
Since the columnar portion 5 formed on the pouring cylinder 4 transmits stress well, the stress concentrates on the thin portion 3 formed on the short top plate 23, so that it can be easily broken.

Finally, when the spout 4 is pulled with a finger, the breaking portion is a trigger, so that the spout 4 can be easily torn along the thin portion 3 to remove the spout 4 and form a large cleaning hole 32. . And since this cleaning hole 32 is large,
Injecting washing water from the washing hole 32 with the inner stopper 2 still plugged,
There is an effect that it can be efficiently discharged, for example, it can be easily washed at home and the container can be reused smoothly.

As for the position of the thin wall portion 3, it may be formed so as to surround the pouring tube 4 around the outer side of the pouring tube 4 in order to remove the pouring tube 4. If it is formed, it is not easily broken by the impact at the time of stoppering or the stress when removing the opening plate 41, and after removing the pouring cylinder 4, there is no unevenness in the interior, and cleaning can be performed more smoothly, which is preferable.

In the case of polyethylene resin, the thickness of the thin portion 3 is 0.2 to 0.25 mm in order to withstand the resin flow at the time of molding the cap and the impact at the time of plugging and distribution.
The degree is preferable, and when the columnar portion 5 is provided and pressed as in the present invention, the columnar portion 5 breaks and triggers, so that even the above-mentioned thickness can be easily torn along the thin-walled portion 3.

As shown in FIG. 2, if the columnar portion 5 is formed over the entire height from the top portion 44 of the spouting cylinder 4 to the short top plate 23, the stress when pressed can be satisfactorily transmitted to the thin portion 3. It is preferable because it is possible. Further, if the thick portions 51 are formed on both sides of the columnar portion 5, the stress transmitting effect by the columnar portion 5 is much more efficient. Further, if the columnar portions 5 are provided at a plurality of positions, even if the pushing position is slightly displaced, the stress is transmitted to any position, and the thin portion 3 is easily broken.

At a position directly below the columnar portion 5, the thin portion 3 is formed on the upper surface of the short top plate 23 so that the thin portion 3 is easily broken by the stress in the direction of pressing from above, and at other portions,
The thin portion 3 may be formed on the lower surface of the short top plate 23 so that the thin portion 3 can be easily broken by the stress in the upward pulling direction.

The container cap of the present invention is formed by injection-molding polyethylene, polypropylene, etc.
It can be manufactured. The plastic container or the like to which the container cap of the present invention can be applied is not particularly limited, but for example, it can be suitably used for a biaxially stretched blow bottle of polyethylene terephthalate.

[0017]

As described above, in the container cap of the present invention, the spout cylinder is provided on the inner circumference of the inner plug fitted into the container mouth via the ring-shaped thin portion, and Since the opening plate is provided inside through a thin portion for forming a spout, and the columnar portion is formed on the cylinder wall of the spout cylinder,
After pouring out the contents and using it, press the top of the pouring tube strongly with your finger in the lateral direction or downward,
Since the columnar portion transmits stress well, the stress concentrates on the thin portion and can be easily broken.

After that, if you pull the pour tube with your finger,
Since the broken part is a trigger, it can be easily torn along the thin part to remove the pouring cylinder and form a large cleaning hole, so it is efficient to inject and discharge the cleaning water from the cleaning hole with the stopper plugged. The effect is that it can be performed well, for example, it can be easily washed at home and the container can be reused smoothly.

[Brief description of drawings]

FIG. 1 is a front view of a cross section of a container with a container cap plugged into the container.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of a cross section showing a state in which the pouring tube is removed after the contents have been used.

[Explanation of symbols]

 1 Container Mouth 2 Inner Plug 3 Thin-walled Part 31 Thin-walled Part 4 Spouting Tube 41 Opening Plate 5 Columnar Part

Claims (1)

[Claims] 1. A spouting tube is provided on the inner circumference of an inner plug fitted into a container opening via a ring-shaped thin portion, and a thin wall portion for forming a spout is provided inside the spouting tube. A container cap, wherein an opening plate is provided and a columnar portion is formed on a cylinder wall of the spout cylinder.