Sliding Piercer for Tool-Free Container Venting
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Solution Overview
Problem
Existing container designs for dispensing liquids face challenges in venting without additional tools, often requiring second openings that increase manufacturing complexity, leakage risks, and aesthetic issues, while user-initiated piercing can be inconsistent and inconvenient.
Innovation Solution
A single-neck container with a sliding piercer device that includes a locking strip and rails, allowing the piercer to slide and create a vent opening without external tools, ensuring self-contained venting and minimizing headspace.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a second opening is added to the container for venting, then venting function is improved, but manufacturing complexity increases
Solution Approach 1:
The piercing device is divided into separate functional components: a piercer element for creating the vent opening, a slider mechanism for positioning, and a locking strip for securing. This segmentation allows each component to be manufactured independently and assembled, simplifying the overall manufacturing process while providing reliable venting functionality.
Solution Approach 2:
The piercing device incorporates a slider mechanism that allows the piercer to move between positions, enabling the vent opening to be created at different locations on the container body. This dynamic capability provides reliable venting without requiring a fixed second opening, reducing manufacturing complexity.
2Reliability
If a second opening is added to the container for venting, then venting function is improved, but leakage risks increase
Solution Approach 1:
The locking strip acts as an intermediary element that secures the piercer in place after creating the vent opening. This intermediary component prevents unintended movement or dislodging of the piercer, thereby reducing leakage risks while maintaining the venting function.
Solution Approach 2:
The piercing device is designed to be self-contained, with the piercer creating its own sealing interface within the container body. The device performs its own insertion and sealing functions without requiring additional external components, reducing leakage risks associated with complex multi-component systems.
3Reliability
If a second opening is added to the container for venting, then venting function is improved, but aesthetic issues worsen
Solution Approach 1:
The piercing device creates a localized vent opening at a specific position on the container body, rather than requiring a visible second opening. This localized approach maintains the aesthetic quality of the container's overall shape while providing the necessary venting function through a minimally invasive modification.
4Ease of operation
If user-initiated piercing is used for venting, then tool-free operation is improved, but piercing consistency worsens
Solution Approach 1:
The locking strip serves as an intermediary that guides the piercer into proper alignment with the container body during insertion. This intermediary component ensures consistent positioning and depth of penetration, improving piercing consistency while maintaining ease of tool-free operation.
Solution Approach 2:
The device replaces manual piercing with a controlled mechanical insertion system. The slider mechanism provides controlled movement of the piercer into the container body, ensuring consistent penetration depth and angle without requiring user skill or external tools, thereby improving both ease of operation and piercing consistency.
5Device complexity
If a sliding piercer device is used for venting, then device complexity is reduced, but venting reliability may worsen
Solution Approach 1:
The locking strip acts as an intermediary that secures the piercer in the correct position after insertion. This simple intermediary component ensures reliable venting by preventing unintended movement or dislodging of the piercer, maintaining venting reliability without adding significant device complexity.
Data Source
AI summary
A container for dispensing a liquid includes a body and a piercing device. The body includes an interior storage volume, an outlet through the first wall for dispensing the liquid, a first track disposed in a first side wall of the body, and a second track disposed in a second side wall of the body, the second side wall opposite the first side wall. The piercing device can be slidably coupled to the body and includes a first rail configured to slide within the first track, a second rail configured to slide within the second track, and a piercer that includes a piercing end. The piercer can slide from a first position to a second position to pierce the body and create a vent opening.