JP3234082B2 - Container cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap used at the mouth of a container such as a PET bottle for storing a liquid seasoning (such as soy sauce and sauce).

[0002]

2. Description of the Related Art Heretofore, a cap of this type has been used in which a thin portion at the bottom is torn by a pull ring to form a spout.
It is fitted and locked to the mouth of a container such as an ET bottle, and the overcap is screwed from above.

[0003]

By the way, it has recently been strongly urged not to dispose of plastic products from the viewpoint of environmental problems and resource saving, and the above-mentioned containers such as PET bottles have been recovered by the revision of the Recycling Law. Although designated as a target product, PET bottles for soy sauce have not been collected. The reason is that, in the case of a PET bottle for soy sauce, the inside of the bottle is not sufficiently washed after use, and if the soy sauce is discarded while remaining, the remaining liquid sticks to the inner surface of the bottle and cannot be recycled. However, it is still desirable to collect and recycle soy sauce PET bottles. However, in the case of soy sauce PET bottles, the spout formed in the cap is small and dripping around the spout. Since the flange portion for prevention is provided upright, it is difficult to sufficiently wash the inside with a washing liquid such as water after use. For this reason, the appearance of a cap in which a washing liquid can be easily put in after use has been desired.

SUMMARY OF THE INVENTION The present invention has been made in order to meet the above-mentioned demands, and a purpose thereof is to provide a container which is functionally the same as a conventional cap during use and is easy to put a washing liquid after use. To provide a cap for use.

[0005]

In order to achieve the above object, a container cap according to the present invention is provided with an opening cutout portion surrounded by a thin portion on a top wall extending from an upper end of a peripheral wall,
A pull ring protrudes from the cutout portion via a column, a flange portion for preventing liquid dripping is provided on the top wall outside the cutout portion, and the peripheral wall is fitted to the mouth of the container. In the container cap to be attached, a first thin portion in the diameter direction is provided on the flange portion, and a second thin portion is provided on a portion of the top wall outside the flange portion so as to go around the flange portion. Things.

[0006]

In the cap of the present invention having the above-described structure, the first thin portion is broken by putting a fingertip into the flange portion and pulling the finger on both sides, and the second thin portion is broken by further pulling the flange portion. The part is removed.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing a container cap according to the present invention, and FIG. 2 is a sectional view taken along line AA of FIG.

The cap 1 is made by injection-molding a synthetic resin. A thin portion 5 is formed at the center of a top wall 3 extending from the upper end of the peripheral wall 2 by a cut 4 extending upward from the lower surface. The thin portion 5 defines a horizontally long hexagonal cutout 6. A pull ring 8 is provided above the cutout 6 at a position near the end of the cutout 6 via a column 7. A flange 9 for preventing liquid dripping is provided upright outside the cutout 6. The peripheral wall 2 has an upper peripheral wall 2a formed on the outer periphery with a male screw 10 for screwing the overcap, and the cap 1 having a larger diameter than the container B
And a lower peripheral wall 2b to be attached to the mouth of the vehicle. At the inner side of the lower peripheral wall 2b, a piece 1
2 is provided, and when the lower peripheral wall 2b is fitted to the tip of the mouth of the container B, the lower peripheral wall 2b comes into contact with the inside of the tip of the mouth to prevent liquid leakage. It should be noted that the shape of the peripheral wall 2 is only required to be attachable to the mouth of the container B, and is not limited to the shape of the present embodiment.

A first thin portion 14 in the diameter direction is formed in the flange portion 9 by a cut 13 extending outward from the inner surface. The first thin portion 14 is provided in the diametric direction corresponding to the longest portion of the cutout portion 6, and the cut 13 extends near the thin portion 5 for opening. Horizontal protrusions 15 are provided on the inner surface of the flange portion 9 so as to be located on both sides of the first thin portion 14.
Further, a second thin portion 17 is provided on the top wall 3 outside the flange portion 9 by a cut 16 directed upward from the lower surface so as to go around the flange portion 9.

The cap 1 constructed as described above is used in a state in which a spout is formed by pulling the pull ring 9 with a fingertip to break the thin portion 5 and separating the cutout portion 6 as in the conventional one. . After use, both thumbs are inserted into the flange portion 9, and the first thin portion 14 is broken by pulling both sides in a state where the ridge 15 is gripped, and the second thin portion is further pulled as it is. 17
Is broken, and the flange portion 9 can be removed in a state of being divided into two as shown in FIG. Thus, the flange 9
Is removed, a large opening is formed in the top wall 3 of the cap 1, from which a washing liquid can be put into the container B for washing.

In the above-described embodiment, an example in which the shape of the opening cutout portion 6 is a horizontally long hexagon has been described.
Needless to say, any other shape may be used.
Further, as in the above-described embodiment, the first thin portion 14 in the diameter direction is preferably provided corresponding to the longest portion of the cutout portion 6, but may be provided elsewhere.
In this case, it is preferable to extend the thinner portion near the opening to the top wall portion.

When the peripheral wall 2 has a two-stage structure as in the above embodiment, the first thin portion 14 and the second thin portion 1 are formed.
In addition to 7, as shown in FIG. 4, a third thin portion 22 in the diametric direction is formed in the upper peripheral wall 2a by a cut 21 inward from the outer surface corresponding to the extension of the first thin portion 14, A fourth thin portion 24 may be provided inside the hanging piece 12 of the step portion 11 so as to go around the upper peripheral wall 2a by a cut 23 directed upward from the lower surface. Thereby, in addition to the flange portion 9, the upper peripheral wall 2a can also be removed in two parts, and the opening area can be further increased, so that the cleaning liquid can be more easily filled.

[0014]

As described above, the container cap according to the present invention has a first thin portion in the diameter direction in the flange portion in addition to the structure of the conventional cap, and a portion of the top wall outside the flange portion. Since the second thin portion is provided so as to go around the flange portion, it is functionally the same as a conventional cap during use, and after use, put a fingertip into the flange portion and pull on both sides. The first thin portion is thereby broken, and the flange portion can be removed by pulling the thin portion to break the second thin portion. As a result, a large opening is formed in the top wall. The washing liquid can be easily put into the inside.

[Brief description of the drawings]

FIG. 1 is a plan view of a container cap according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a side view showing a state where a flange portion is removed.

FIG. 4 is a sectional view showing a modified example of the container cap shown in FIGS. 1 and 2.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 2 Perimeter wall 3 Top wall 5 Thin part 6 Cut-out part 7 Prop 8 Pull ring 9 Flange part 14 First thin part 17 Second thin part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 47/36 B65D 47/36 ZAB

Claims (1)

(57) [Claims] An opening cut-out portion surrounded by a thin portion is provided on a top wall extending from an upper end of a peripheral wall, and a pull ring is protruded through a support above the cut-out portion. A flange portion for preventing liquid dripping is provided upright on the top wall, and in a container cap attached by fitting a peripheral wall to a mouth portion of the container, a first thin portion in a diametric direction is provided on the flange portion, A cap for a container, wherein a second thin portion is provided in a portion of the top wall outside the flange portion so as to go around the flange portion.