Spout With Snap-Off Closing Portion For Single-Action Unsealing
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Solution Overview
Problem
Existing spouted containers face challenges in cost-effectiveness, hygienic properties, and barrier properties, particularly requiring multiple steps for unsealing and potentially failing to unseal both the sealed chamber and discharge port simultaneously.
Innovation Solution
A spouted container design featuring a bag-like container body with a spout attached in a liquid-tight manner, where a sealed portion with a weakened line allows for single-action exposure of the discharge port by snapping off the closing portion, ensuring easy access while maintaining hygienic and barrier properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a capped spout is attached in a liquid-tight manner to a container body, then hygienic properties and barrier properties are improved, but manufacturing cost increases due to multiple components
Solution Approach 1:
The spout and cap are merged into a single integrated spout component with the closing portion formed as an integral part. This eliminates the need for separate cap and spout components, reducing manufacturing cost while maintaining the liquid-tight sealing and hygienic properties through the unified structure.
Solution Approach 2:
The integrated spout structure performs multiple functions: it serves as both the discharge conduit and the closing mechanism housing. The closing portion is formed integrally with the spout body, allowing the single component to fulfill both sealing and discharge control functions, thereby reducing part count and manufacturing complexity.
2Ease of operation
If the connecting portion of the discharge port and closing portion is thin-walled to enable snap-off, then ease of operation is improved, but hygienic properties and barrier properties deteriorate
Solution Approach 1:
The spout structure employs local quality differentiation: the connecting portion has reduced wall thickness to enable easy snap-off operation, while the main spout body and closing portion maintain sufficient wall thickness to ensure hygienic properties and barrier performance. This localized thinning allows operational ease without compromising overall structural integrity and sealing performance.
3Reliability
If a sealed chamber is introduced to seal the discharge port, then hygienic properties are improved, but device complexity increases requiring two-step unsealing operation
Solution Approach 1:
The sealing function and the closing portion are merged into a single integrated structure. The closing portion is formed as part of the spout assembly and is sealed within the container body structure. When the closing portion is snapped off, both the seal and the discharge port opening occur simultaneously in a single action, eliminating the need for separate unsealing steps while maintaining hygienic sealing properties.
4Ease of operation
If a single-action unsealing mechanism is implemented, then ease of operation is improved, but reliability of sealing may be compromised
Solution Approach 1:
The closing portion is pre-formed as an integral part of the spout structure during manufacturing, with the sealing function already built into the design. The weakened connecting portion is pre-positioned to enable controlled snap-off. This preliminary preparation ensures that when the user performs the single snap-off action, the sealing integrity is maintained until the exact moment of intended opening, at which point both sealing and discharge occur reliably in one action.
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 design provides an inexpensive, hygienically superior, and barrier-effective spouted container that allows easy exposure of the discharge port in a single action, addressing the limitations of previous designs.
Implementation Method 1
a spout (20) which is attached in a liquid-tight manner to the container body (10)
Implementation Method 2
a sealed portion (30) which seals the spout (20) by means of a weakened line (31)
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A spout (20) which attaches to a container body (10), wherein the spout (20) is provided with a spout body (21), and a closing portion (22) which closes a discharge port of the aforementioned spout body (21); the aforementioned spout body (21) has an attachment (24) which is attached to a container body (10) in a liquid-tight manner, and an outer cylinder (25) which is positioned on the outer side of the container body (10); and the closing portion (22) is connected to a discharge port of the outer cylinder (25) in a manner which enables it to be snapped off, and is provided with projections (29) which extend toward the spout body (21) side. In addition, there is a spouted container (1) to which the aforementioned spout (20) is attached.