Open/close cap and manufacturing method thereof

Abstract

A connection member connecting a cap body and a band is prevented from being cut, and as result, a tamper prevention function is achieved and simultaneously the band is prevented from being cut by deformation. An opening / closing cap is constructed from a cap body (3) screwed on to the outer peripheral surface of a mouth portion of a spout body and from a band (10) extending in the circumferentialdirection of the cap body (3) and engaged with the spout body. A portion at which the band (10) is separated in the circumferential direction is provided at at least one place in the circumferential direction of the band, and the band is connected to each other at the at least one place by a connection member (14) enabling the band (10) to be cut. The band (10) is positioned below the lower surface of the cap body (3) and is attached to the lower part of the cap body (3) by connection members (12, 13). Further, in order to prevent deformation of the band, a band shape maintaining body is provided inside the band. The maintaining body prevents the band from being pressed radially inward and crushed when the inside of the band is pressed against the lower end of the cap body.

Description

technical field [0001] The present invention relates to an opening / closing cap mounted on the mouth of a pouring spout of a packaging container or the like for opening or closing the mouth of a pouring spout of a packaging container, and to a method of manufacturing such The method of opening / closing the cover. Background technique [0002] In order to open or close a cylindrical pouring spout formed on a packaging container, there is provided a spout structure in which an opening / closing cap is detachably threadably engaged with a mouth of the pouring spout. For this spout structure, in order to securely hold the opening / closing cap on the pouring spout, there is known a structure in which a band is provided around the cap main body to hold the outer surface of the pouring spout by the band ( See, for example, Patent Publication 1) below. [0003] The open / close lid of this structure is constituted such that the belt loop is arranged on the outer side of the lid main body...

AI Technical Summary

Problems solved by technology

[0011] However, after the pouring spout of the container has been hermetically sealed by the opening / closing cap, there is a fear that the couplings and connectors will be disconnected when external force is applied to the container during transportation in a transportation line or circulation path

In particular, when the coupling has been disconnected, the anti-tamper function cannot be achieved

[0012] Also, in the conventional opening / closing cap shown in the invention by Patent Publication 2, as Figure 20 As shown, for example, when the caps collide with each other during the transportation of the container, there are some situations where the band ring 100 is pushed inwardly and then deformed in the radially inward direction.

When the cap remains in this deformed state, the cut-off portion 101 connecting the band ring 100 is broken by a radially inward impact, thus damaging the anti-rotation function and unsealing of the band (band ring) 100. check function

Images