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Container lid of synthetic resin

一种合成树脂、容器盖的技术，应用在瓶子/容器盖、用盖子将容器盖紧、防止容器重复装料的装置等方向

Active Publication Date: 2011-06-08
JAPAN CROWN CORK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, since the engaging part of the tamper-evident bottom is engaged with the engaging claw portion of the mouth and neck, the tamper-evident bottom is prevented from rising.

Method used

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  • Container lid of synthetic resin
  • Container lid of synthetic resin
  • Container lid of synthetic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Preferred embodiments of the synthetic resin container cap constructed according to the present invention will now be described in further detail with reference to the accompanying drawings.

[0042] Referring to the description showing a preferred embodiment of a synthetic resin container cap constructed according to the present invention Figure 1 to Figure 3 , the container lid indicated in its entirety by reference numeral 2, may advantageously be integrally formed from a suitable synthetic resin, such as polyethylene or polypropylene, by injection molding or compression moulding. The container lid 2 comprises a main body 4 and a tamper evident bottom 6 . The main body 4 has: a circular top wall 8 ; and a cylindrical skirt wall 10 extending downward from the periphery of the top wall 8 . A circular recess 12 for avoiding protrusions during injection molding is formed in the center of the upper surface of the top wall 8 . Two sealing protrusions, an inner annular p...

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PUM

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Abstract

A synthetic resin container-lid of type in which a body of the container lid is kept connected to a tamper-evident skirt section through non-breakable connecting sections. The container lid includes the tamper-evident skirt section connected to the body via breakable bridge sections arranged with a spacing from the body in the circumferential direction. The container lid is configured such that, even if the bridge sections are broken and the body is separated from an opening neck of a container, the container lid is kept mounted to the opening neck of the container. The container lid has an improved construction which can be applied without problems to a case where the body is, when separated, lifted a relatively long distance. Each of the non-breakable connecting sections is formed in a shape including two tilt sections tilted in the directions opposite to each other.

Description

technical field [0001] The present invention relates to a synthetic resin container closure having a tamper evident property of the type that the container closure as a whole is not separated from the container even after the mouth and neck of the container are unsealed. More specifically, the present invention relates to a container cap made of synthetic resin of the type comprising a main body and a tamper-evident bottom connected via a plurality of breakable bridges arranged at intervals in the circumferential direction. To the main body, even after the breakable bridge is broken to release the main body from the mouth and neck of the container, the main body continues to be connected to the tamper-evident bottom via the non-broken web, and the tamper-evident bottom continues to be mounted on the mouth and neck of the container . Background technique [0002] The synthetic resin container cap having a tamper-evident property is suitable for a container having an external...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D55/16B65D41/34
CPCB65D55/16B65D41/3428B65D41/325B65D2251/1008B65D2401/30B65D41/34B65D49/12
Inventor 石井修木村敬福士诚司
Owner JAPAN CROWN CORK CO LTD
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