Packaging container and method of producing the same

a packaging container and container technology, applied in packaging, packaging, packaging machinery, etc., can solve the problems of user's hand or finger being bitten by the lid, and the time and labor required to wrap such a packaging container with a wrapping film, so as to prevent the lid from being hurt, the effect of preventing the lid from being broken and the sharpness of the lid being reduced

Inactive Publication Date: 2006-01-19
FUJII YOSHINORI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] Therefore, an object of the present invention is to solve the above-mentioned problems by providing a method for manufacturing a safe and easily treatable packaging container having an opening peripheral edge of an improved structure.
[0011] Even though a packaging container according to the present invention is molded of a thin synthetic resin sheet, the finely corrugated opening peripheral edge in the longitudinal direction thereof has a lower sharpness than a thin peripheral edge elongated straight has. As a result, if user's hand, finger or the like is rubbed against the opening peripheral edge, the hand, finger or the like can be prevented from being hurt.
[0012] Further, even if a wrapping film is stretched on and rubbed against the opening peripheral edge, the wrapping film can be prevented from being broken.

Problems solved by technology

As a result, there is a problem that such an opening peripheral edge elongated along the outline of a container or a lid is apt to hurt user's hand or finger at the time of using the container or the lid since the material sheet thereof is thin.
Therefore, there is a problem that much time and labor is required to wrap such a packaging container with a wrapping film.

Method used

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  • Packaging container and method of producing the same
  • Packaging container and method of producing the same
  • Packaging container and method of producing the same

Examples

Experimental program
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Embodiment Construction

[0023]FIG. 1 is a perspective view of a container body of a packaging container according to one embodiment of the present invention. And FIGS. 2(A)-2(C) are a partly enlarged perspective view, a plan view and a front view of section A of the container body 1 of the packaging container of FIG. 1.

[0024] In this embodiment, the container body 1 is explained as a packaging container. The container body 1 has a bottom plate 20 and a peripheral side frame (peripheral side wall) 10 standing obliquely outwardly at the periphery of the bottom plate 20. The bottom plate 20 has, for example, a substantially rectangular shape with rounded four corners. Therefore, the container body 1 has, as a whole, a shape of a deep rectangular dish. And the upper end of the peripheral side frame 10 defines an opening of the container body 1. An outwardly extended flange 11 is formed at the upper end of the peripheral side frame 10. The flange 11 constitutes a peripheral flange encompassing the upper end of...

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PUM

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Abstract

A packaging container according to the present invention is molded of a thin synthetic resin sheet. The outer peripheral edge of an opening of the packaging container 1, 18 has an outwardly extemded flange 11. The outer peripheral edge 11a of the flange 11 is corrugated in the vertical or horizontal direction. By corrugating the outer peripheral edge 11a of the flange 11, the corrugated outer peripheral edge 11a can give a soft touch to user's hand or finger or a wrapping film contacting the same. As a result, user's hand or finger can be prevented from being hurt and the wrapping film can be prevented from being broken.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a packaging container and a method of producing the same, and especially to an opening peripheral edge encompassing an opening of a packaging container. [0003] 2. Description of Related Art [0004] Among synthetic resin packaging containers, containers having an inside storage part formed by sheet molding recently have come to need space saving property. Therefore, needs have changed from containers molded of a foamed sheet to containers molded of thin synthetic resin sheet. A synthetic resin sheet is molded into a container shape and then the peripheral edge of the container shape is cut, whereby a container molded of thin synthetic resin sheet can be obtained. Generally, such a packaging container has a shape provided with a wide opening. A packaging container of this shape comprises a bottom plate, a peripheral side wall upwardly extending from the periphery of the bottom plate, an...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D1/42B31B50/59B65D1/22B65D1/40B65D77/20
CPCB31B43/00B31B2201/22B65D77/20B65D1/40B65D1/22B31B50/59B65D1/34B65D3/00B65D3/02
Inventor FUJII, YOSHINORI
Owner FUJII YOSHINORI
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