JP2567418Y2 - Container lid - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container lid having a tamper-evident band.

[0002]

2. Description of the Related Art Hitherto, lids having a so-called tamper-evident function have been used in lids of food bottles and the like so that if a lid is illegally opened during the distribution process, this fact can be recognized. This type of lid generally has a separable tamper-evidence band at the lower end of the lid body, and it can be seen that the tamper-evidence band is opened by being detached from the lid body when opening. It has become. However, such a tamper-evident band is unnecessary after opening and needs to be removed from the container opening when the used container is reused as a resource.

For this reason, conventionally, a bridge portion is left at a boundary between the lid body and the tamper-evidence band portion, and a weakening line is formed in the tamper-evidence band in the longitudinal direction from the end of the bridge portion, and the stopper is opened. It is known that the tamper-evidence band is broken from the weakening line by turning the hour cap, and the tamper-evidence band is detached from the bottle together with the lid body (for example, JP-A-61-21355). Gazette, Japanese Patent Publication No. 62-12
No. 096). As another means, the tamper-evidence band can be detached from the bottle by making a complete slit in the tamper-evidence band in the vertical direction and separating the lid body and the tamper-evidence band when the lid is opened. Some have been proposed (Japanese Patent Laid-Open No. 61-28767).

[0004] However, the former of the above prior arts is different from metal in the case of a synthetic resin lid because it has elasticity.
In some cases, it may be stretched at the time of opening and cannot be cut. In addition, the tamper-evidence band may remain on the lid main body after being opened without being completely cut off, and there is a problem that it becomes an obstacle when resealing. In the latter case, there is a disadvantage that the tamper-evidence band is pushed and spread by the engagement portion with the container in the capped state, and the tamper-evident band is broken from the beginning and is easily regarded as a defective product.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve the problem of the tamper-evidence band in the above-mentioned conventional container lid, and it is easy to open the tamper-evidence band. It can be completely removed from the neck of the container, and after opening, the lid body and the tamper-evident band are completely separated for easy resealing. It is an object to provide a container lid with a high tamper-evident band.

[0006]

According to the present invention , there is provided a container lid having a tamper-evident band, wherein the container lid has a tamper-evident band .
At the top and bottom ends of the tamper evidence band,
A continuous tamper-evidence slit consisting of a combination of a plurality of vertical slits and horizontal slits is formed so that the tamper-evidence band itself does not need to be broken when opening. It is characterized by becoming. Further, the container lid of the present invention includes a plurality of the tamper-evident bands such that the vertical slits reach at least the upper and lower ends of the tamper-evidence bands .
A tamper-evident slit consisting of a combination of only a vertical slit and a horizontal slit is formed, and the slit is interrupted in the tamper-evident band slit to form a fine bridge that can be easily broken at the time of capping. A configuration characterized in that no force for breaking the evidence band itself is required can be adopted.

[0007]

The vertical slits of the tamper-evidence band slits are dispersed into a plurality of slits. Therefore, even if the vertical slits are widened after capping, they are not so conspicuous and do not reduce the commercial value as in the prior art. And
Since the tamper-evidence band slit extends above and below the tamper-evidence band, the tamper-evidence band is completely separated from the container upon opening, and the band does not remain as in the conventional case. In addition, since the tamper-evident band is completely formed with the longitudinal slit in advance, a force for breaking the tamper-evidence band itself is not required at the time of opening, so that a large opening force is not required.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment in which a fin formed on a tamper-evident band is applied to a container lid with a tamper-evident band of a type in which the fin is engaged with a container engaging portion. In the figure, 1 is a lid main body, and 2 is a tamper evidence band. At the boundary between the lid body 1 and the tamper-evident band 2, a cutting line 3 is formed over the entire circumference of the container fitting wall except for an inscribed rib (not shown) formed at an appropriate pitch on the inner peripheral surface of the container fitting wall. When the cap is opened, the inscribed rib is broken by rotating the lid body against the inscribed rib, so that the lid body and the tamper-evident band can be separated. A plurality of fins 4 are formed on the inner peripheral surface of the tamper-evidence band 2 and extend inward from the inner peripheral surface of the band at an appropriate pitch in a direction opposite to the closing rotation direction of the lid. The fins are locked to the locking portions of the container 9 to prevent the tamper-evident band 2 from coming out of the container when opened. The above structure is the same as the conventional lid, and is integrally formed by compression molding with a synthetic resin.

In this embodiment, as shown in the figure, a first vertical slit 5 extending upward from a lower end to a substantially middle portion is formed in a tamper-evident band 2 of the lid, and extends in a circumferential direction from an upper end of the first slit. A tamper-evident band slit 8 comprising a horizontal slit 6 and a second vertical slit 7 extending upward from the end of the horizontal slit to the upper end is formed continuously. Thereby, the tamper-evidence band slit 8 is vertically separated into two through the horizontal slit,
Even if the vertical slit expands after capping, it does not stand out. In addition, since the slit is completely connected to the upper and lower portions of the tamper-evident band, the tamper-evidence band can be reliably removed from the container at the time of opening.

FIG. 2 shows another embodiment of the present invention. In this embodiment, a tamper-evident band 11 is connected to a lid body 10 via a bridge 12, and In this case, a flap 13 is provided which extends inward and upward from the inner peripheral surface and engages with the engaging portion of the container 19, and is applied to a lid integrally formed by injection molding. A first vertical slit 14 extending upward from the lower end of the tamper-evident band, a horizontal slit 15 extending circumferentially from the upper end of the first vertical slit, and an upper end of the tamper-evident band upward from the end of the horizontal slit as in the previous embodiment. The tamper-evident band slit 18 is formed by a combination of the second vertical slits 16 extending to the end. In this embodiment, the tamper-evident band slit 18 is formed at the time of lid molding, and has a width corresponding to the thickness of the mold. Therefore, in this embodiment, the first vertical slit 14 is formed with a fine bridge 17 traversing the slit. The bridge 17 is so thin that it breaks during capping .

The embodiments in the case of the compression-molded lid and the injection-molded lid have been described above. The lid of these embodiments can be molded by either compression molding or injection molding. Further, the shape of the tamper-evidence band slit formed in the tamper-evidence band of the present invention is not limited to the above-described embodiment. For example, as shown in FIG.
The tamper evidence band slit 29 is composed of a first vertical slit 20, a first horizontal slit 21, a second vertical slit 22, a second horizontal slit 23, a third vertical slit 24, a third horizontal slit 25, and a fourth vertical slit 26. Various design changes are possible. In FIG. 3, 27 is a lid body,
28 is a tamper evidence band.

[0012]

[Effects of the Invention] In the present invention, since the vertical slits of the tamper-evidence band slit are dispersed into a plurality of parts by the simple structure as described above, even if the vertical slits are expanded at the time of capping, they are not so noticeable. There is no reduction in commercial value unlike the conventional case. When the cap is opened, the tamper-evident band is completely separated from the container, and the band does not remain. Further, since a force for breaking the tamper-evidence band itself is not required at the time of opening, a large opening force is not required.

[Brief description of the drawings]

FIG. 1A is a front view of a lid according to an embodiment of the present invention,
(B) is a sectional view of a main part in a state of being attached to a container.

FIG. 2A is a front view of a lid according to another embodiment of the present invention, and FIG. 2B is a cross-sectional view of a main part in a state where the lid is attached to a container.

FIG. 3 is a front view of a main part of a lid according to another embodiment of the present invention.

[Explanation of symbols]

 1, 10, 27 Lid body 2, 11, 28 Tamper-evidence band 8, 18, 29 Tamper-evidence band slit

Claims (2)

(57) [Scope of request for utility model registration] 1. A container lid having a tamper-evident band, wherein the tamper-evidence band has at least
At the top and bottom ends of the tamper evidence band,
A continuous tamper-evidence slit consisting of a combination of a plurality of vertical slits and horizontal slits is formed so that the tamper-evidence band itself does not need to be broken when opening. A container lid characterized in that: 2. A container lid having a tamper-evidence band, wherein the tamper-evidence band has at least
At the top and bottom ends of the tamper evidence band,
A tamper-evidence slit consisting of a combination of a plurality of vertical slits and horizontal slits is formed so that the slits reach , and the slit is interrupted in the tamper-evidence band slit to facilitate capping. A container capable of breaking the tamper-evidence band itself when opening the container.