JPH06255664A - Container cap - Google Patents

Abstract

PURPOSE:To provide a container cap which facilitates washing the container and pouring fresh contents therein when reusing the plastic container. CONSTITUTION:A discharge cylinder 8 is provided at the inner periphery of an internal plug 6 fitted to the container opening through a ring-shaped thin part 7 and a peripheral thin part 12 is provided on the upper edge 8a of the discharge cylinder 8, except a part thereof.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a container cap,
More specifically, the present invention relates to a container cap that is sealed by closing the mouth of a plastic container or the like and opening a sealing plate inside the pouring tube so that the contents can be guided while being guided by the pouring tube.

[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 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 (pull ring) on the upper surface and an outer lid covering the inner plug.

When a plastic container or the like is to be sealed, 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 spout is formed by tearing from the thin portion and removing 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 a small spout, so that there is a problem that the washing cannot be performed efficiently.

[0005] Therefore, an object of the present invention is to provide a container cap which can be easily washed and recycled when a plastic container or the like is reused.

[0006]

In order to achieve the above-mentioned object, the container cap of the present invention has a spout cylinder formed on the inner circumference of an inner plug fitted in a container mouth through a ring-shaped thin portion. Provided,
An opening plate is provided inside the pouring tube through a thin portion for forming a pouring port, and a thin portion is provided circumferentially except a part at an upper edge portion of the pouring tube. .

[0007]

[Operation] According to the above configuration, during normal use, the spout can be formed by tearing and removing the opening plate from the thin portion for forming the spout with a pull ring or the like. Can be poured out. When cleaning the container after using the contents, tear the upper edge of the dispensing tube from the thin peripheral portion into a ring shape, and hang it with your finger to pull the dispensing tube inside. It can be torn and removed from the thin portion of the inner circumference of the plug, and a large opening can be formed.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in more detail based on an embodiment shown in the drawings. 1 is a sectional view showing a state in which a container cap is stoppered, FIG. 2 is a sectional view showing a state in which an opening plate is removed to form a spout, and FIG. 3 is a side view showing a state in which a spout barrel is removed. FIG. 4 is a cross-sectional view showing a state in which the spout cylinder is removed to form an opening, and FIG. 5 is a cross-sectional view of a main part showing another embodiment of the present invention.

First, referring to FIG. 1, the container cap 1
Has a cap groove 3 having a shape capable of fitting the edge part 2 of the container mouth at the lower end, and an outer lid screw-fastening having a screw thread for screwing an outer lid 4 on the upper part of the tapping groove 3. An inner stopper 6 having a portion 5, a spout cylinder 8 formed through a ring-shaped thin portion (score for opening formation) 7 provided on the inner peripheral portion of the inner stopper 6, and the spout cylinder 8 Is formed through a thin portion (score for forming spout) 9 for forming a spout having a predetermined shape on the inner bottom plate, and an opening plate 11 integrally provided with a pull ring 10 on the upper surface thereof. The upper edge 8a of the outlet cylinder 8 has about 3 /
A circumferential thin-walled portion (score for pull ring formation) 12 is provided over four rounds, and a reinforcing thick-walled portion 13 is provided on the outer peripheral surface of the pouring tube 8 at a portion where the thin-walled portion 12 is not formed.

The container cap 1 shown in this embodiment is also the same as the conventional one, that is, the edge portion 2 of the container mouth of a plastic container or the like.
The cap groove 3 of the container cap 1 is forcibly driven into the container to seal it. When opening the cap, the outer lid 4 is removed,
As shown by the imaginary line in FIG. 1, the pull ring 10 is pulled to break and remove the opening plate 11 from the thin portion 9 for forming the spout, thereby forming the spout 14 as shown in FIG. In addition,
The shape of the spout 14 can be appropriately set in accordance with the viscosity of the content and the usual amount used, as in the conventional case.

Then, after pouring out the contents from the pouring outlet 14 through the pouring tube 8 and using it, by pulling the upper edge portion 8a of the pouring tube 8, as shown in FIGS. 2 and 3, The upper edge portion 8a is torn from the thin portion 12 and has a pull ring shape with the connection portion 8b with the pouring tube 8 left, so that by pulling it through a finger or the like, the inner plug 6 and the pouring tube 8 are separated. The spout 8 can be removed from the inner plug 6 by tearing the ring-shaped thin portion 7 between them. As a result, FIG.
The opening 15 as shown in FIG. 2 can be formed inside the inner plug 6. Since the opening 15 thus formed is larger than the spout 14, the cleaning water can be efficiently injected and discharged from the opening 15 while the inner plug 6 is still plugged. For example, there is an effect that it can be easily washed at home and the container can be reused smoothly.

The position of the ring-shaped thin portion 7 provided between the inner plug 6 and the pouring tube 8 is not particularly limited as long as it is below the thin portion 12 provided in the pouring tube 8. But,
As shown in the present embodiment, by providing the thin portion 7 on the upper end of the outer lid screwed portion 5 of the inner plug 6, it is difficult to break even by the stress when removing the stopper and the opening plate 11, and the spouting cylinder Since the unevenness in the interior is eliminated after removing 8, the cleaning can be performed more smoothly, which is preferable. The thin portion 12 provided on the upper edge portion 8a of the pouring tube 8 has a ring-shaped upper edge portion 8 when the thin portion 12 is broken and the upper edge portion 8a is pulled.
It suffices that a has a width having sufficient strength, and the portion where the thin portion 12 is not provided has sufficient strength to pull the upper edge portion 8a and cut the pouring tube 8 from the thin portion 7. If you have.

FIG. 5 shows another embodiment of the thin-walled portion 12 portion provided on the pouring tube 8, wherein a stepped portion 12a is provided on the outer periphery of the thin-walled portion 12 and the upper edge portion 8a is pulled to reduce the thin-walled portion. It serves as a clue when cutting from the part 12. As a result, the upper edge portion 8a can be easily torn from the thin portion 12, and the removal operation of the pouring tube 8 becomes easier.

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

[0015]

As described above, according to the container cap of the present invention, the spout cylinder is provided on the inner periphery of the inner plug fitted into the container mouth through the ring-shaped thin portion, and the spout cylinder is provided. Since a thin-walled part was provided on the upper edge part except for a part, after the contents were poured out and used, the upper edge part of the pouring tube was torn from the thin-walled part to form a pull ring. Can be pulled to tear the spout barrel from the thin portion of the inner circumference of the inner plug, and the spout barrel can be removed to form a large opening. As a result, it is possible to efficiently inject and discharge the washing water from the opening with the stopper still attached, for example, to easily wash even at home,
It is possible to smoothly reuse the container.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a container cap is stoppered in a container.

FIG. 2 is a cross-sectional view showing a state in which an opening plate has been removed to form a spout.

FIG. 3 is a side view showing a state in which a dispensing cylinder is removed.

FIG. 4 is a cross-sectional view showing a state in which a spouting tube is removed to form an opening.

FIG. 5 is a cross-sectional view of an essential part showing another embodiment of the present invention.

[Explanation of symbols]

1 ... container cap, 3 ... stopper groove, 4 ... outer lid, 6 ... inner stopper,
7 ... Thin-walled part (score for opening formation), 8 ... Pour-out cylinder, 9 ... Thin-walled part (score for forming spout), 11 ... Opening plate, 12 ... Thin-walled part (score for pulling ring formation)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigeshi Miyao 4-7-5 Sotokanda, Chiyoda-ku, Tokyo Ishikawa Kosan Building Tokyo Light Industry Co., Ltd.

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 thin portion is provided in a circumferential shape except a part on an upper edge portion of the dispensing cylinder.