JPH09249247A - Cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an easy removal of a cap from a container after the content has been used up, and realize the recycling of the container and the effective utilization of resources by collecting the container and the cap after separating them. SOLUTION: For this cap 1 having a protruding strap 12 for the fitting with a container, on the inner periphery of the cylindrical wall, on the inner periphery of the cylindrical wall 2, an open part 4 where the protruding strap 12 is not formed, or is formed to be extremely small, is provided, and in the vicinity of the open part 4 on the cylindrical wall 2, a pull knob means in order to remove the cap 1 from the container, is provided. By pulling the pull knob means upward, the cap 1 can be easily removed from the container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap to be attached to a bottle of edible oil, various seasonings and the like, or other containers.

[0002]

2. Description of the Related Art For example, as described in Japanese Utility Model Laid-Open No. 57-9743, a cap having a ridge for fitting a container on the inner periphery of a cylindrical wall has a ridge formed on the inner periphery of the cylindrical wall. It is formed over the entire circumference, is mechanically stoppered at once from the top of the container mouth, and the ridge formed on the outer periphery of the container mouth and the ridge of the cap are firmly fitted.

[0003]

In the conventional cap described above, after filling the contents, the cap is suddenly plugged from above with a strong mechanical force, and the container and the cap are firmly fitted. It is extremely difficult to remove the cap manually. The present invention makes it possible to easily remove the cap from the container after consuming the contents, recycling the container by separating and collecting the container and the cap,
And to realize effective use of resources.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a cap having a ridge for fitting with a container on the inner circumference of a cylinder wall,
It has an opening portion in which the protrusion is not formed or is formed extremely small on the inner circumference of the cylinder wall, and has a pulling means for removing the cap from the container in the vicinity of the opening portion of the cylinder wall. It is a characteristic cap.

In the open portion, a ridge is formed on the inner periphery of the cylindrical wall, or even if it is formed, it is extremely small, so that the portion is not fitted to the container. Further, since the pulling means is provided in the vicinity of the opening, the cap starts to come off from the opening by pulling the pulling means, and the cap can be removed from the container by further pulling the pulling means.

In a so-called hinge cap in which the outer lid is attached to the cylinder wall by a hinge, by using the outer lid as the pulling means, it is not necessary to provide a special pulling means. In this case, the hinge portion is provided near the open portion. Most preferably, the center of the binge portion and the center of the open portion coincide.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments. FIG. 1 is a sectional view showing a state in which the cap 1 of the embodiment is mounted on a container (glass bottle), and FIG. 2 is a bottom view of the cap 1.

The cap 1 is a so-called hinge cap made of plastic, and an outer lid 9 is attached to the cylindrical wall 2 with a hinge 10 by integral molding. On the inner periphery of the cylindrical wall 2, a ridge 3 fitted with a ridge 12 formed on the outer periphery of the mouth of the bottle 11.
Is provided. However, as shown in FIG. 2, it has an open portion 4 in which a protrusion 3 is not formed. Hinge 1
0 is provided at a position where its center line coincides with the center line of the opening 4. A spout 5 is formed in the upper part of the cylindrical wall 2, and a pull ring 6 is formed in the inside thereof. By pulling the pull ring 6, an annular cutting portion 7 is cut and opened. Reference numeral 8 in the figure denotes a seal cylinder portion, which closely adheres to the inner periphery of the opening of the bottle 11 to seal the contents.

When removing the cap 1 from the bottle, the outer lid 9 is pulled in the direction of the arrow, that is, upward. The inner periphery of the cylinder wall at the hinge portion is an open portion 4, and a ridge 12 at the bottle mouth is provided.
Since the cap 1 is not fitted, the cap 1 easily starts to come off the bottle from this portion, and when the outer lid is further pulled upward, the cap is completely dropped from the bottle. When the lid is closed with the outer lid closed, the pulling means is housed, so that there is no danger that the cap will come off the bottle.

In the above-mentioned embodiment, the outer lid 9 also serves as a pulling means, which is very suitable. However, when it is not a hinge cap, the pulling means such as an annular knob is additionally provided, which is the same. The pulling means can be pulled upward and the cap can be easily removed. The position of the pulling means does not need to be completely aligned with the position of the opening as long as it does not interfere with the removal of the cap, but if it is completely aligned as in the embodiment, the removal work of the cap becomes easier. The length of the open portion is appropriately designed so that the cap can be easily removed and the cap does not easily fall off during use of the container.

FIG. 3 is a bottom view of a cap 20 according to another embodiment. As with the cap 1 described above, the cap 20 has a ridge 22 formed on the inner periphery of the cylindrical wall 21, but has no ridge formed at the opening 23. An outer lid 25 as a pulling means is hinged to the outer periphery of the open portion by a hinge 26. A plurality of cuts 2 are formed in the ridges 22 of this embodiment.
4 are formed. The notch 24 is formed so that when the resin injected into the mold is cured during plastic molding, the molded cap is easily removed when the mold is removed from the mold (so-called “force removal”). It is intended to be able to remove from the mold. By providing such a cut, removal of the cap from the container is further facilitated.

[0012]

The cap of the present invention can be easily removed from a container such as a bottle after use, so that the used container and the cap can be separated and treated.
Bottles can be recycled and plastic materials can be recycled, contributing to effective use of resources.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a state in which a cap 1 of an embodiment is attached to a bottle.

FIG. 2 is a bottom view of the cap 1. FIG.

FIG. 3 is a bottom view of the cap 20 according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 2 Cylinder wall 3 Ridge 4 Opening part 5 Injection port 6 Pull ring 7 Cutting part 8 Seal cylinder part 9 Outer lid 10 Hinge 11 Bottle 12 Ridge 20 Cap 21 Cylinder wall 22 Ridge 23 Opening part 24 Cut 25 Outer lid 26 Hinge

Claims (2)

[Claims] 1. A cap having projections 3, 22 for fitting a container on the inner circumference of the cylinder walls 2, 21.
1. The container has caps 1 and 20 near the open portions 4 and 23 of the cylindrical walls 2 and 21 having open portions 4 and 23 in which the protrusions are not formed or are formed extremely small on the inner circumference. A cap 1, 20 having pulling means for removing from 2. The cap according to claim 1, wherein the pulling means is an outer lid 9, 25 connected to the cylindrical wall 2, 21 by a hinge 10, 26.