JPH024884Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure of a non-metallic container with good retention properties and a seaming part of a metal lid.

When wrapping a metal lid plate around a cylindrical container where the material is softer than metal, such as paper, the material is weaker than metal cylinders to prevent the paper cylinder from buckling or breaking at the seaming part. It is normal to wrap it tightly.

For this reason, when seaming paper tubes, it is difficult to achieve the strong double seaming that occurs with metal cans, and the seaming portion tends to be small and weak. Therefore, during use, there is a risk that the contents may leak from the tightening part of the product, and in extreme cases, the product may fall off.

The present invention is intended to solve this problem, and FIG. 1 is a sectional view of essential parts showing an embodiment of the present invention.

In the figure, reference numeral 1 denotes a metal lid, which is provided with a curved step 2' facing inward in the middle of the countersink wall 2, and extends outward and downward into a recess on the outside of the curved step 2'. The cover hook 3 at the tip of the metal lid 1, which wraps the inverted container tip 6, holds the curved stepped portion 5 of the paper tube container 4 at a point that is almost opposite to the hook 3, and the paper tube is inserted from the outside. The structure of the seaming portion between the container 4 and the metal lid 1 is shown.

In this case, the curved stepped portion 5 formed on the paper tube container 4
However, in order to easily enter the outer recess of the curved stepped portion 2' of the metal lid 1, half of the length C from the upper end of the countersink wall 2 of the metal lid 1 to the lower end of the curved line of the curved stepped portion 2' is , the length A from the upper end of the wall 2 to the upper end of the curved line of the curved stepped portion 2', and the length B of the cover hook 3. As a result, the metal lid 1 enveloping the tip 6 of the paper tube container 4
The strong cover hook 3 at the tip of the metal lid 1 forms a curved step 5 on the soft paper tube container 4 and pinches it, while biting into the recess on the outside of the curved step 2' of the metal lid 1. Since it is inserted, the original double seaming and the locking of the curved step part are redundantly seamed, which not only ensures a tight seal, but also eliminates the risk of the metal lid falling off from the paper tube container during use. All of them will disappear.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of essential parts showing an embodiment of the present invention. 1...Metal lid, 2...Counter sink wall, 2'
... Curved stepped portion, 3... Cover hook, 4... Paper tube container, 5... Curved stepped portion of the container, 6... Tip portion of the container.

Claims (1)

[Claims for Utility Model Registration] (1) A non-metallic material that is inverted outwardly and downwardly into a recess on the outer side of the inwardly curved stepped portion 2' provided in the middle of the countersink wall 2 of the metal lid 1. A cover hook 3 at the tip of the lid 1 that wraps around the tip 6 of the container 4 is fitted from the outside across the curved stepped portion 5 of the container 4 at a location substantially opposite to the cover hook 3. Structure of the seaming part of the container and metal lid. (2) In the structure described in item 1 above, the length A from the upper end of the countersink wall 2 to the upper end of the curved line of the curved step 2' is equal to the length A from the upper end of the wall 2 to the curved line of the curved step 2'. The length to the bottom end is 2/1 of C, and the structure is equal to the length B of the cover hook 3.