Pivoting Closure Cap with Tear-Open Segment for Controlled Opening
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Solution Overview
Problem
Existing closure caps for containers and bottles are unsuitable for certain beverages, difficult to open, and may fly away uncontrolled when under pressure, making it hard to determine if the cap has been opened.
Innovation Solution
A closure cap design featuring a cap skirt with a tear-open section and a pivoting part that acts as an integrated bottle opener, allowing controlled opening and degassing, with a pivoting mechanism that ensures the cap is lifted without flying off, and visible weak points indicating opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional tamper-proof band with breaking webs is used, then the closure cap provides tamper-evident sealing, but it is difficult to determine whether the closure cap has already been opened and the design is unsuitable for certain containers and beverages
Solution Approach 1:
The closure cap utilizes visual changes in the tear-open section to indicate opening status. The thin point that forms the rotary axis and the tear-open section itself provide clear visual cues when torn, making it easily detectable whether the cap has been opened previously without requiring complex indicator mechanisms
2Ease of operation
If a closure cap is designed to be easily opened, then the opening operation becomes simpler, but the cap may fly away in an uncontrolled manner when the bottle contents are under pressure
Solution Approach 1:
The closure cap employs a dynamic pivoting mechanism where the pivoting part rotates about an axis formed by the thin point in the tear-open section. This controlled rotational movement allows the cap to be opened deliberately through pivoting action while maintaining control even under pressure, preventing uncontrolled ejection
Solution Approach 2:
The closure cap is divided into functional sections including the cap skirt with tear-open section, the pivoting part, and the head part. The tear-open section with its thin point creates a defined rotary axis that segments the opening motion into a controlled pivot followed by separation, enabling manageable opening steps rather than sudden ejection
3Ease of operation
If the pivoting part is designed to act as an integrated bottle opener, then the closure cap can be easily lifted off, but the structure becomes more complex
Solution Approach 1:
The pivoting part serves dual functions: it acts as both the hinge mechanism for controlled opening and as an integrated bottle opener lever. By merging these two functions into a single structural element that pivots about the thin point axis, the design achieves ease of operation without adding separate opening tools or complex mechanisms
Solution Approach 2:
The pivoting part is designed to perform multiple functions: it provides the rotational axis for controlled opening, acts as a lever to pry the cap off the bottle, and serves as part of the overall closure structure. This multi-functionality reduces the need for additional separate components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The closure cap allows for easy and controlled opening, visible indication of previous opening, and can be reused, reducing material waste and maintaining a classic bottle design, while preventing uncontrolled removal and ensuring pressure is released safely.
Implementation Method 1
the pivoting part pivots about the axis of rotation has that the stop part rests against the head part
Implementation Method 2
the pivoting part acts on the top part like a lever, which makes it easier to completely lift off the closure cap
Implementation Method 3
a fluid flows between the interior and exterior of the bottle forms a conductive channel along which fluid can escape
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A closure (1) for closing containers (16) consists of a cap cover (3), a ring-shaped head part (2) with a central axis (M), and a pivot part (4), wherein the cap cover (3) extends away from the head part (2) in the direction of the central axis (M), and wherein the cap cover (3) has a tear-open segment (3a) which runs peripherally with respect to the central axis (M), wherein the pivot part (4) is connected to the tear-open segment (3a) and extends in the same direction as the central axis (M), wherein the tear-open segment (3a) has a thin portion (5a) abutting the head part (2) and running peripherally with respect to the central axis (M), the thin portion forming a rotational axis (D), and wherein the pivot part (4) has a stop (4a) which runs in the same direction as the central axis (M) at least to the area of the rotational axis (D), wherein the stop (4a) is constructed in such a manner and so distanced from the head part (2) that a pivoting of the pivot part (4) about the rotational axis (D) causes the stop (4a) to abut the head part (2).