Transparent Threaded Closure With Split Tamper Ring
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Solution Overview
Problem
Existing closure devices for bottles lack sufficient visual indication of opening and are vulnerable to unauthorized reopening, particularly due to the removable lower part of the tamper-evident ring.
Innovation Solution
A closure device with a cylindrical sleeve and an indicator ring featuring a loose connection that separates into upper and lower parts upon first opening, where the lower part is held by internal collars or grooves, creating a visible interval through the transparent sleeve, and includes stop protrusions to prevent unauthorized reassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lower part of the tamper-evident ring is made removable from the pour sleeve, then the ease of operation is improved, but the reliability of visual indication of opening deteriorates
Solution Approach 1:
The ring is divided into two separate parts: an upper part that remains on the pour sleeve and a lower part that detaches and is held by the rim. This segmentation ensures that even if one part is removed, the other remains as permanent evidence of opening, resolving the contradiction between ease of operation and reliability of visual indication.
2Ease of operation
If the lower part of the ring can be easily removed from the pour sleeve, then the ease of operation is improved, but the protection against unauthorized opening deteriorates
Solution Approach 1:
The rim acts as an intermediary holder for the lower part of the ring. After the loose connection breaks, the lower part is transferred to and held by the rim through stop protrusions, preventing it from being completely removed or reused. This intermediary function maintains security while allowing legitimate opening.
3Object-affected harmful factors
If stop protrusions are added to prevent reverse movement, then the protection against unauthorized opening is improved, but the device complexity increases
Solution Approach 1:
Stop protrusions are added only to the lower part of the ring where they are most needed - at the interface with the rim. This localized addition provides the necessary anti-tamper function without significantly increasing overall device complexity. The protrusions are simple geometric features integrated into the existing ring structure.
Data Source
Figure 1~2
Figure 3~5
AI summary
The invention relates to threaded closure caps intended for closing containers whose neck has a thread. Preferably, bottles for spirits. Closure device for container, configured to be installed on the rim of a container and comprising a cylindrical sleeve (1) made of transparent material with means of fixation on the rim in the form of a thread (6), a sealing element (3) installed inside the cylindrical sleeve (1), and an indicator element (2), made in the form of a ring, arranged between the cylindrical sleeve (1) and the rim of the container and comprising upper part of the ring (12) and lower part of the ring (13), connected to each other by loose connection (14) with the ability of its destruction after the first opening, wherein the lower part of the ring (13) comprises stop protrusions (16), interacting with the rim of the container and providing detachment of the lower part of the ring (13), wherein the lower part of the ring (13) is made with the ability of displacement in axial direction to form a visible interval (H) between the upper (12) and lower (13) parts of the ring when the container is opened for the first time.