Packaging body

Abstract

A packaging unit comprises a package box having an openable portion for breaking and removing a seal of a lid by a push-in operation, and a film for sealing and packing the package box, wherein the film includes a fragile portion formed in or adjacent a position corresponding to the openable portion of the package box, the fragile portion being tearable by a push-in operation on the openable portion effected from outside the film. The packaging unit provides a quick and easy seal removing operation while restraining tear and damage of the film in time of distributing and displaying products to enhance tamper-proof efficiency by sealing and packing the package box with the film through a push-in operation to be effected on the openable portion of the package box.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of U.S. patent application Ser. No. 10 / 312,383, filed Jul. 31, 2003, which is the U.S. National Phase of PCT Application No. PCT / JP01 / 05476, filed Jun. 26, 2001, corresponding to Japanese Patent Application Nos. 2000-193110, filed Jun. 27, 2000 and 2000-302024, filed Oct. 2, 2000.BACKGROUND OF THE INVENTION [0002] 1. Technical Field [0003] The present invention relates to a packaging unit used for packing products such as drugs, foods, cosmetics and the like, and particularly to a packaging unit employing a tamper-proof technique. [0004] 2. Background Art [0005] In the field of drugs and foods, package boxes are conventionally known which include an openable portion for breaking and removing a seal of a lid by a push-in operation. One example of such package boxes is disclosed in Utility Model Publication No. 50-33370 in which an openable and closable paper lid having an insert piece is formed integral...

AI Technical Summary

Benefits of technology

[0013] Further, a unique effect is produced due to the arrangement of the fragile portion formed in the limited position of the film corresponding to or adjacent the openable portion. More particularly, even when an inadvertent external force is applied to the film in time of distributing and displaying the product, tearing and damage of the fragile portion due to the inadvertent external force can be restrained, compared with the arrangement of the fragile portion formed over the entire length of the film sealing and packing the package box. Another effect of the invention is that the fragile portion is easily found since it utilizes the characteristics of the most noticeable openable portion.

[0014] As a result, not only the tamper-proof effect is enhanced by sealing and packing the package box having the openable portion with the film, but also the seal removing operation of the package box can be quickly and easily effected while restraining tear and damage of the film in time of distributing and displaying the product by a simple and inexpensive improvement of forming the fragile portion in the film in or adjacent the position corresponding to the openable portion, the fragile portion being automatically tearable by a push-in operation effected on the openable portion of the package box.

[0015] Another packaging unit of the present invention is characterized in that a tensile force is exerted on said film for facilitating tearing of the film when said openable portion is pushed in.

[0016] With this characteristic structure, the film is torn along the fragile portion as the openable portion of the package box sealed and packed with the film is pushed in from outside the film. Concurrently the tensile force exerted on the film is released to contract the film based on a torn condition. Thus, the film is not restored to the original package configuration.

[0017] Therefore, the opened condition of the film is clearly recognized, thereby to enhance the tamper-proof effect.

[0018] Another packaging unit of the present invention is characterized in that said fragile portion includes perforations formed in or adjacent a position corresponding to an edge of said openable portion which is displaced to a maximum extent when the push-in operation is effected.

Problems solved by technology

Thus, the conventional package unit remains unsatisfactory from the viewpoint of tamper-proofness.

However, a disadvantage of complicating an unsealing operation is caused by requiring a step of tearing the film along the perforations and a step of breaking and removing the seal of the lid by pushing in the openable portion of the package box.

Further, the unsealing operation is time-consuming since this tends to involve the trouble of locating and tearing the perforations formed in part of the film.

At the same time, there occurs a problem of increasing the trouble of locating the perforations when removing the seal.

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